Hurricane Sandy is fast approaching the U.S. East Coast and is on target for landfall in southern New Jersey this evening. The effects of the storm are already being felt across a large part of the Mid-Atlantic region.
The Weather Channel is of course providing 24 / 7 coverage of the historic storm on television and the network now has a live feed of its broadcast available that can be viewed below. You can also view WeatherNation TV here for news from an alternative source.
October 28 to November 3 - This Week in Denver Weather History
As we move further into fall, we see the predominant significant weather in our history during the period involves snowstorms.
From the National Weather Service:
27-28
In 1874…strong west winds in Boulder along with a reported tornado produced 150 dollars in damage.
In 1913…a strong cold front produced sustained northeast winds to 35 mph with gusts as high as 38 mph on the 27th. Overnight snowfall totaled 5.8 inches. Temperatures plunged to a low of 17 degrees on the morning of the 28th after a high of 60 degrees on the 27th.
27-30
In 2009…a powerful early season storm brought heavy snow to the Front Range. The combination of a deep northeasterly upslope flow coupled with abundant moisture and lift with the developing storm system produced an extended period of moderate to heavy snowfall. The heavy wet snow accumulated on trees and resulted in broken branches and scattered electrical outages. Interstates 70 and 76 were closed east of Denver. Numerous other roads and highways were shut down. The Red Cross set up numerous emergency shelters for stranded travelers. The blowing snow at Denver International Airport forced the cancellation of hundreds of flights. Schools were also closed. In the foothills storm totals included: 46 inches… 3 miles southeast of Pinecliffe; 42 inches…3 miles southwest of conifer; 34 inches…3 miles north of Blackhawk; 30 inches at Aspen Springs and near Evergreen… 23 inches at Roxborough Park…and 20 inches…3 miles south-southeast of Morrison. Across the urban corridor storm totals included: 25 inches in Highlands Ranch; 21.5 inches near Louisville…20.5 inches in Broomfield… 20 inches at Lafayette…17.5 inches in Boulder…17 inches in Westminster…16.5 inches in Erie; 15.5 inches in Arvada and 5 miles west-northwest of Littleton…15 inches in Littleton…14 inches in Englewood…13.5 inches in Lakewood and 6 miles north of Thornton; 13.3 inches at Denver International Airport…11 inches…4 miles south of Denver; 10.5 inches…2 miles north of Cherry Hills Village and Niwot.
28
In 1917…post-frontal snowfall totaled 6.5 inches in the city. North winds sustained to 30 mph with gusts to 33 mph caused the temperature to plunge from a high of 58 degrees to a low of 9 degrees by midnight.
In 1967…winds gusted to 65 mph in downtown Boulder…causing minor damage. South winds gusted to 32 mph at Stapleton International Airport.
In 1991…the first major snow of the season hit metro Denver as a cold arctic air mass moved over the area. Snowfall amounts across northeast Colorado ranged from 3 to 10 inches with 4.4 inches of snowfall recorded at Stapleton International Airport where north winds gusted to 22 mph. The low temperature dipped to 13 degrees.
In 1993…high winds buffeted the Front Range foothills. A wind gust to 83 mph was recorded atop Squaw Mountain…35 miles west of Denver…and a gust to 76 mph occurred near Rollinsville southwest of Boulder.
28-29
In 1993…an upper level disturbance combined with a moist upslope flow to bring heavy snow to portions of metro Denver. Snowfall amounts ranged from 5.4 inches at Stapleton International Airport to 14 inches in Boulder. New snowfall totaled 8 inches at Gross Reservoir in the foothills 5 miles southwest of Boulder. On the 28th…north winds gusted to 30 mph at Stapleton International Airport where the temperature climbed to only 25 degrees on the 29th…equaling the record low maximum for the date.
October 21 to October 27 - This Week in Denver Weather History
This week in Denver weather history is notable for one dominant weather condition: snow. In our look back through history we see many significant snow events, some of which occurred as recently as just last year.
From the National Weather Service:
18-23
In 2003…an extended warm spell resulted in 5 new temperature records. The high temperature of 84 degrees on the 18th equaled the record high for the date. High temperatures of 86 degrees on the 19th…83 degrees on the 21st…and 84 degrees on the 22nd were record highs for the dates. Low temperature of 49 degrees on the 23rd was a record high minimum for the date. Low temperatures during the period were in the 40’s and lower 50’s.
19-23
In 1906…heavy snowfall totaled 22.7 inches in the city over the 5 days. Rain changed to snow on the evening of the 19th…and snow continued through the late afternoon of the 23rd. The heaviest amount of snowfall…16.0 inches…fell from 8:00 pm on the 20th to 8:00 pm on the 22nd. The most snow on the ground was 13.3 inches on the evening of the 23rd. This was the first snow of the season and the only snow of the month. Winds during the storm were from the north at sustained speeds of 20 to 30 mph each day. Temperatures during the storm were generally in the 20’s.
20-21
In 2007…a storm system brought heavy snow to the southern Denver suburbs as well as the Palmer Divide south of Denver. Storm totals included: 7.5 inches near Castle Rock…Lone Tree and Greenwood Village…with 6.5 inches at Elizabeth. Snow drifts up to 2 feet deep were observed 6 miles south-southwest of Elizabeth. In the Denver Stapleton area…2.0 inches of snow was observed.
In 2009…heavy snow developed along the Palmer Divide south and southeast of Denver as a storm system tracked across southern Colorado and northern New Mexico. Storm totals included: 15 inches…15 miles north of Elizabeth…9 inches…5 miles south-southwest of Arapahoe Park; 8 inches in Highlands Ranch…5 miles south- southeast of Sedalia; 6.5 inches…8 miles southwest of Bennett and 6 inches in Parker. At Denver international… Only 1.5 inches of snowfall was observed.
20-22
In 1936…5.5 inches of snow fell over downtown Denver. Most of the snow…4.5 inches…fell on the 20th.
21
In 1920…the rare event of snow from a thunderstorm occurred in the city during the evening. Brilliant flashes of lightning and loud peals of thunder were first noted at 7:35 pm. Light rain began falling at 8:30 pm…and light moist snow began falling a few minutes later. Some soft hail was also seen falling with the rain and snow…but both melted almost as fast as they fell. The hail only continued for a few minutes…and the rain and snow ceased about 9:40 pm. The snowfall was the first to occur in Denver this season. The amount of precipitation at the station measured only 0.01 inch…but heavier amounts were reported from other parts of the city. Snowfall was only a trace.
October 14 to October 20 - This Week in Denver Weather History
The further we get in October the chances for snow increase and our look at this week in Denver weather history shows many significant snowstorms. Arguably the most notable was the infamous “Bronco Blizzard” of 1984 which dumped snow on the Mile High City while the Broncos faced off against the Green Bay Packers.
From the National Weather Service:
12-14
In 1969…record breaking extremely cold temperatures for so early in the season occurred. The high temperature of 26 degrees on the 13th was two degrees lower than the previous record minimum temperature of 28 degrees for the date set in 1885. The high temperature of 24 degrees on the 12th exceeded the record low temperature (22 degrees set in 1885) for the date by only 2 degrees. In addition… 3 new record low temperatures for the dates were set. The low temperature dipped to 10 degrees on the 12th breaking the old record (22 degrees in 1885) by 12 degrees. On the 13th the mercury plunged to a low of 3 degrees breaking the old record (28 degrees in 1885) by 25 degrees. On the 14th the temperature reached a minimum of 4 degrees breaking the old record (25 degrees in 1966) by 21 degrees.
13-14
In 1910…light smoke from nearby forest fires drifted over the city.
In 1966…the first measurable snow of the season caused widespread damage to trees and shrubs. The heavy wet snow totaled 6.9 inches at Stapleton International Airport where north-northwest winds sustained at 20 to 25 mph and gusting to 45 mph caused much blowing and drifting snow. South and east of Denver…up to a foot of snow fell. Heavy wet snow accumulations followed by freezing temperatures and strong winds resulted in extensive damage to trees…cars… And utility lines by falling limbs. A woman was killed by a falling snow laden tree limb in Denver. Several other people received minor injuries from falling tree limbs.
In 1987…rain drenched metro Denver. The South Platte canyon area southwest of Denver received the most with 1.11 inches at Kassler and 1.49 inches upstream at Strontia Springs. At Stapleton International Airport…0.62 inch of rain was measured…northwest winds gusted to 29 mph…and thunder was heard.
In 2007…a new 24-hour record of 2.65 inches of precipitation was set at Denver International Airport for the month of October; breaking the previous record of 2.58 inches set in 1892.
13-16
In 1873…smoke from several large forest fires in the mountains made the air very hazy in the city.
14
In 1952…the first measurable snowfall of the season left 1.2 inches of snow at Stapleton Airport. North winds gusted to 38 mph.
In 1974…rain changed to snow early in the day…but snowfall totaled only 1.0 inch at Stapleton International Airport where northeast winds gusted to 20 mph.
October 7 to October 13 - This Week in Denver Weather History
While fall has barely just begun, our look back at this week in Denver weather history is most notable for winter-like conditions. Numerous noteworthy storms have struck the Mile High City during this week in our past including a major one just seven years ago.
From the National Weather Service:
7
In 1903…north winds were sustained to 40 mph with gusts to 48 mph.
In 1917…post-frontal northwest winds were sustained to 45 mph with gusts to 52 mph. Rain was mixed with a trace of snow…the first of the season. Precipitation totaled 0.22 inch and included the occurrence of hail… Even though no thunder was heard.
In 1950…strong winds caused a power outage in Boulder. This was the heaviest windstorm since January. Damage was minor. Northwest winds gusted to only 35 mph at Stapleton Airport.
In 1985…strong Chinook winds buffeted the Front Range foothills. Wind gusts between 60 and 70 mph were reported in Boulder and atop squaw mountain west of Denver. Southwest winds gusted to 41 mph at Stapleton International Airport.
7-8
In 1990…the season’s first snow occurred. Snowfall amounts varied from 3 to 7 inches across metro Denver. Snowfall totaled 4.0 inches at Stapleton International Airport where north winds gusted to 29 mph.
8
In 1923…southeast winds were sustained to 44 mph with gusts to 47 mph. The strong winds persisted through the afternoon. The high temperature of 77 degrees was the warmest of the month that year.
In 1975…a wind gust to near 100 mph was recorded in Boulder. Frequent wind gusts to 60 mph were reported along the foothills causing only minor damage. West winds gusted to 45 mph at Stapleton International Airport.
9
In 1910…light smoke from forest fires in the mountains was sighted over the city.
In 1982…northwest winds gusted to 49 mph at Stapleton International Airport.
9-10
In 2005…a major winter storm brought heavy…wet snowfall to the Front Range mountains…eastern foothills…portions of metro Denver…and the Palmer Divide. Snow accumulations ranged from 8 to 26 inches with drifts from 3 to 4 feet in places. The heaviest snow occurred to the east and southeast of the city…closing most major highways in that area…including I-70 from Denver to Limon. The Red Cross opened four shelters for people who were stranded along I-70 in eastern Colorado. Since many trees had not yet shed their leaves…the storm caused significant tree damage. One woman in Denver was killed when a tree branch… 8 to 10 inches in diameter…snapped under the weight of the heavy…wet snow and struck her as she was shoveling her driveway. Xcel Energy reported power outages to about 35 thousand customers. Several incoming flights were delayed at Denver International Airport. Snow totals included: 16 inches in the foothills near Boulder…12 inches at Genesee and near Golden…22 inches near Watkins…19 inches near Bennett…17 inches southeast of Aurora…14 inches near Parker…13 inches near Castle Rock…12 inches in Centennial… 11 inches in Parker…and 10 inches at Denver International Airport and in Littleton. While many areas of metro Denver received heavy snow…others experienced almost entirely rain. This included west and northwest metro Denver…Boulder…and Longmont. Rainfall amounts were significant as storm totals ranged between 1.50 and 2.50 inches. The steady rainfall triggered 3 rockslides in foothills canyons. Two of the slides occurred on State Highway 119 in Boulder Canyon and the longest slide…7 feet in length…on State Highway 74 in Bear Creek Canyon at Idledale. North winds were sustained to around 23 mph with gusts to 31 mph at Denver International Airport on the 9th. The high temperature of only 34 degrees on the 10th was a record low maximum for the date. The low temperature on both days was 32 degrees.
With the first full month of fall here, October usually brings one of the quietest weather months in the Denver area with plenty of mild, sunny days and clear, cool nights.
October is historically the second sunniest month and conditions are generally calm. However we also will usually see our first taste of winter during the month with the first freeze and first snowfall of the season. Temperatures as well will start to drop and by the end of the month the average nighttime lows are below freezing.
October offered a bit of everything for everyone from record warmth to heavy snowfall.
October 2011 started out quite warm but then stabilized into a seasonal pattern. As is often the case with Colorado weather though, at one point we went from record high temperatures to snow in a span of two days.
In terms of temperature, Denver finished the month with an overall overage temperature of 52.6 degrees. This was 1.6 degrees above the normal for the month of 50.9 degrees. Temperatures ranged from a high of 87 degrees on the first of the month down to 14 degrees on the 26th and 27th.
Here in Thornton we were slightly cooler with an average temperature of 50.4 degrees. Our highs ranged from a top mark of 86.6 degrees on the first down to a very cold 12.8 degrees on the 27th.
Two record high temperatures were tied or broken during the month. On the 15th, the mercury climbed to 82 degrees which tied the record for the date last set in 1938. On the 24th the temperature hit 80 degrees, breaking the previous record high for the date of 79.
Quite a bit more precipitation was recorded than normal during October 2011. 1.79 inches fell into the rain bucket at DIA which is 0.82 inch above normal. Much of that precipitation fell on October 8th when 1.04 inches was recorded, a record for the date. DIA also recorded a trace of snowfall, the first of the season.
The Mile High City was hit with its first snowstorm on the 25th and 26th when 8.5 inches of the white stuff fell. That also was the snowfall total for the month which far exceeded the normal of 4.2 inches.
Thornton nearly mirrored Denver’s precipitation as we recorded 1.75 inches during the month between rain and snowmelt. Our snowfall fell short of DIAs however as we recorded 6.6 inches during the storm late in the month.
...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2011...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2011
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 90 10/01/1892
LOW -2 10/29/1917
HIGHEST 87 10/01 90 -3 85 10/03
LOWEST 14 10/26 -2 16 20 10/28
10/27
AVG. MAXIMUM 67.3 65.3 2.0 69.7
AVG. MINIMUM 37.9 36.6 1.3 40.9
MEAN 52.6 50.9 1.7 55.3
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX = .01 4 5.3 -1.3 4
DAYS >= .10 3 2.4 0.6 2
DAYS >= .50 1 0.5 0.5 0
DAYS >= 1.00 1 0.1 0.9 0
GREATEST
24 HR. TOTAL 1.04 10/08 TO 10/08
SNOWFALL (INCHES)
RECORDS
TOTAL 31.2 1969
TOTALS 8.5 4.2
DEGREE_DAYS
HEATING TOTAL 400 438 -38 300
SINCE 7/1 495 576 -81 335
COOLING TOTAL 23 5 18 8
SINCE 1/1 964 769 195 870
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 10/17 10/07
LATEST 05/05
...................................................
WIND (MPH)
AVERAGE WIND SPEED 9.8
RESULTANT WIND SPEED/DIRECTION 4/205
HIGHEST WIND SPEED/DIRECTION 49/210 DATE 10/06
HIGHEST GUST SPEED/DIRECTION 63/200 DATE 10/06
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.40
NUMBER OF DAYS FAIR 13
NUMBER OF DAYS PC 15
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 44
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 5 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 2
LIGHT SNOW 3 SLEET 0
FOG 5 FOG W/VIS
Denver saw a big change in the weather in a very short period of time. Click the image for a slideshow of images from the snowstorm.
The weather in Colorado is famously variable and in a span of a few short days this was fully evident. We went from record high temperatures to a winter-like snowstorm and back to sunny skies in four days.
On Monday, October24, Denver set a record high temperature of 80 degrees, besting the record high for the date of 79 degrees last set in 1999. Thornton was just a touch cooler for the day with a high of 79 degrees.
Tuesday was a day of transition as we started with sunny skies but clouds rolled in during the afternoon and rain was falling by the evening. As darkness descended and temperatures fell, the rain changed to snow and we started our first snowstorm of the season.
In the Denver metro area, snow totals ranged from a few inches to as many as 9 in the western and northwestern suburbs. Denver International Airport recorded 8.5 inches, more than double the 4.1 inch average for the month of October. Here in Thornton, we lagged a bit with 6.6 inches of the white stuff.
Have broken branches to get rid of? The City of Thornton is holding a special tree limb drop off event on Saturday. Click here for details
Across Thornton and much of the Front Range, the heavy wet snow caused its share of problems. Many trees had yet to lose their leaves and branches broke under the weight of the snow. Power outages were seen across the region including many in Thornton.
While the storm moved out before nightfall Wednesday, it left clearing skies which led to bitterly cold temperatures. Denver International Airport recorded an early morning low of 14 degrees, the coldest temperature the city has seen since March 5th. Here in Thornton we dropped to a low of 12.8 degrees.
The latest forecasts show we are in for a gradual warm up but one that will keep temperatures below normal through the weekend. Beyond that, we may be getting our next shot of snow as soon as late in the day next Tuesday.
The video below was captured by our west facing webcam. You can see as the snow builds the trees start sagging and struggle under the weight of the snow.
Warm and dry were the key words for Denver’s October weather and that same trend was also seen globally. According to the National Climatic Data Center, October 2010’s average global temperature was the 8th warmest on record. With an average temperature of 58 degrees, the month was nearly 1 degree warmer than average.
The image below shows the areas that were warmer and cooler than the 1971 to 2000 average.
October 2010 global temperatures. (NOAA)
From the National Oceanic and Atmospheric Administration:
Global Temperature Highlights
The combined global land and ocean average surface temperature for October 2010 was the eighth warmest on record at 58.07 F (14.54 C), which is 0.97 F (0.54 C) above the 20th century average of 57.1 F (14.0 C). The range associated with the combined temperature is +/- 0.14 F (0.08 C).*
The October worldwide land surface temperature was 1.64 F (0.91 C) above the 20th century average of 48.7 F (9.3 C) — the sixth warmest October on record. Warmer-than-average conditions were particularly felt across western Alaska, Canada, northeastern Africa, the Middle East, Kazakhstan and large portions of Russia. Cooler-than-average regions included most of Europe, Mongolia and much of Australia. The range associated with the land surface temperature is +/- 0.20 F (0.11 C).
According to the Bureau of Meteorology, Australia had its 10th coolest maximum temperatures on record for October with daytime maximum temperatures 2.12 F (1.18 C) below average. Statewide, both the Northern Territory and Queensland had their third coolest maximum temperatures since national records began in 1950.
The October worldwide ocean surface temperature was 0.72 F (0.40 C) above the 20th century average of 60.6 F (15.9 C) and was the 10th warmest October on record. The warmth was most pronounced across the Atlantic, western North Pacific and most of the Indian Ocean. The range associated with the ocean surface temperature is +/- 0.13 F (0.07 C).
For the year-to-date, the global combined land and ocean surface temperature of 58.53 F (14.73 C) was tied with 1998 as the warmest January–October period on record. This value is 1.13 F (0.63 C) above the 20th century average.
Moderate La Niña conditions continued in October, while sea surface temperatures remained below-normal across the central and eastern equatorial Pacific Ocean. According to NOAA’s Climate Prediction Center, La Niña is expected to strengthen and last at least into the Northern Hemisphere spring of 2011.
Polar Sea Ice and Precipitation Highlights
The average Arctic sea ice extent for October was 2.97 million square miles (7.69 million square km), which was 17.2 percent below average. This marks the third lowest October Arctic sea ice extent since records began in 1979 and the 14th consecutive October with below-average Arctic sea ice extent.
Antarctic sea ice began its annual retreat during October. October 2010 was the fourth largest sea ice extent on record (2.9 percent above average). The largest October sea ice extent occurred in 2006.
According to Mexico’s National Weather Service (Servicio Meteorolológico Nacional), this October was Mexico’s driest since 1941.
North and west Amazonia in Brazil was in the midst of its worst drought in the past 40 years. In October, one of the Amazon River’s most important tributaries, the Black River, dropped to its lowest level of 44.7 feet (13.6 meters) since record keeping began in 1902.
October 2010 ended up drier and warmer than normal.
Following on what was a “top 10” warmest and driest September, October tried to follow suit but fell short of achieving record status. Nevertheless, the month was considerably warmer and drier than normal.
In terms of temperature the month ranked as the 11th warmest fall just 0.1 degree short of top 10 status. The average temperature was 55.3 degrees; a considerable 4.3 degrees above normal. Temperatures ranged from a high of 85 degrees on the 3rd down to a low of 20 on the 28th. In all there were only two days when the mercury dipped to freezing or below; seven days below the normal nine we receive.
Thornton was quite a bit cooler overall than Denver as we had an average temperature of 52.7 degrees. Highs ranged from 84 degrees on the 4th down to 23.3 degrees on the 28th.
As an interesting side note, it was just last October that we had our second coldest October on record. The average temperature in October 2009 was a chilly 42.9 degrees and we had 17 days with temperatures at or below freezing!
We suffered through another dry month which did spark a couple of wildfires. A mere 0.54 inch of precipitation was recorded at the official monitoring site at Denver International Airport. This was just barely more than half of the normal of 0.99 inch. Most of the precipitation fell in the form of rain on the 12th when 0.34 inch was recorded. Here in Thornton we were a bit wetter having recorded 0.73 inch of precipitation during the month.
For the first time since 2003 no snow was recorded in Denver in October. This is only the 15th time since 1882 that has happened. On average we expect to receive 4.1 inches of the white stuff.
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOULDER, CO
205 PM MDT MON NOV 1 2010
...................................
...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2010...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1872 TO 2010
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 90 10/01/1892
LOW -2 10/29/1917
HIGHEST 85 10/03 90 -5 84 10/18
LOWEST 20 10/28 -2 22 17 10/10
AVG. MAXIMUM 69.7 66.0 3.7 54.7
AVG. MINIMUM 40.9 35.9 5.0 31.1
MEAN 55.3 51.0 4.3 42.9
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.3 -0.3 3
DAYS MIN <= 32 2 8.6 -6.6 17
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.17 1969
MINIMUM T 1934
TOTALS 0.54 0.99 -0.45 1.36
DAILY AVG. 0.02 0.03 -0.01 0.04
DAYS >= .01 4 5.3 -1.3 8
DAYS >= .10 2 MM MM 5
DAYS >= .50 0 MM MM 0
DAYS >= 1.00 0 MM MM 0
GREATEST
24 HR. TOTAL 0.34 10/12 TO 10/12 0.39 10/20 TO 10/21
SNOWFALL (INCHES)
RECORDS
TOTAL 31.2 1969
TOTALS 0.0 4.1 -4.1 17.2
DEGREE_DAYS
HEATING TOTAL 300 436 -136 676
SINCE 7/1 335 582 -247 815
COOLING TOTAL 8 0 8 0
SINCE 1/1 870 696 174 533
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 10/07
LATEST 05/05
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 9.1 9.6
RESULTANT WIND SPEED/DIRECTION 3/231 MM
HIGHEST WIND SPEED/DIRECTION 41/350 10/25 37/350 10/29/09
HIGHEST GUST SPEED/DIRECTION 51/350 10/25 54/200 10/05/09
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
NUMBER OF DAYS FAIR 9
NUMBER OF DAYS PC 22
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 44
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 3
LIGHT RAIN 5 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 2 FOG W/VIS <= 1/4 MILE 1
HAZE 7
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
Weather, natural disasters & climate news and information.
Hurricane Sandy is fast approaching the U.S. East Coast and is on target for landfall in southern New Jersey this evening. The effects of the storm are already being felt across a large part of the Mid-Atlantic region.
With the first full month of fall here, October usually brings one of the quietest weather months in the Denver area with plenty of mild, sunny days and clear, cool nights.
