Tag Archives: weather record

Denver hits 100 degrees on June 18, breaks another record

Record setting high temperatures in Thornton.
Denver set a high temperature record of 100° on Monday, June 18, 2012.

A record-setting day in the Mile High City.  At 2:57pm today the temperature at DIA climbed to 100 degrees thus breaking the record high for the date.  The old record was 99 degrees last set in 1990.

Also, the date will go down in history as having had the record high minimum as the mercury dipped to only 69 degrees at 5:38am.  That handily beat the previous record of 66 degrees set in 1940.

Here in Thornton we weren’t quite as warm.  Our high temperature topped out at 97.5 degrees at 4:23pm.  On the other end, our morning low was considerably cooler as we dropped to 60.3 degrees at 6:08am.

The National Weather Service also points out some interesting information about today’s heat:

“Although official records are not recorded for an average daily temperature…a few interesting statistics have been found for today’s excessive warmth. Today’s average daily temperature was a very warm 84.5 degrees. When we look at the average daily temperatures for this date in history…today was by far the warmest for June 18th. The old warmest average daily high temperature for June 18th was 81.5 degrees set back in 1936.”

“The average daily temperature of 84.5 degrees also ties with June 24th, 1954 as the 2nd warmest daily average ever for the month of June in Denver.

“The warmest daily average temperature for the month of June is 85.5 degrees and it occurred on June 27th, 1990.”

Denver sets high temperature record for June 17

Record setting high temperatures in Thornton.
Denver set a high temperature record of 98° on Sunday, June 17, 2012.

A record breaking Sunday in Denver as the mercury topped out at 98 degrees at 4:25pm.  This breaks the high temperature record for the date of 97 degrees set in 2007.

Here in Thornton we were slightly cooler with the high reaching 97.1 degrees at 3:20pm.

More record-setting heat is forecast for Monday as the mercury is expected to soar to 100 degrees.  The record for June 18 is 99 degrees set in 1990 and could very well tumble.  Get the latest forecast here: http://www.thorntonweather.com/forecast.php

Denver sets new record high temperature for June 4

Record setting high temperatures in Thornton.
Denver set a high temperature record of 94° on Tuesday, June 4.

As officially measured at Denver International Airport, the Mile High City hit a high temperature of 94° at 2:25pm. This broke the old record high temperature for the date of 93° set in 2010, 1990 and 1977.

The problem? No other reliable station in the metro area came anywhere near that high of a temperature reading.

For comparison, Rocky Mountain Regional Airport saw 91°, Centennial 88°, Boulder 91°, Denver City Park 90°, Stapleton 90° and here in Thornton we recorded 91°.

Once again we see how the move of Denver’s official monitoring station to DIA are altering our climate records.  For more details on this controversial topic: The fallacy of Denver’s climate records: Weather station move skews data

March 2012 goes into the Denver weather history books on a number of marks

Record setting high temperatures in Thornton.
March 2012 goes into the history books as the driest, least snowiest and 2nd warmest March on record in Denver.

The month of March in Denver is typically known for its snow and corresponding chilly temperatures.  That however was certainly not the case for March 2012 as the Mile High City saw one of its warmest and driest Marches on record.

From the start of the month to the end, March’s temperatures were well above normal.  While we would normally see days with temperatures in the 50s, we instead saw 70s and even a couple of 80+ degree days.

The historical overall average temperature for the month of March is 40.4 degrees (based on 1981 to 2010 normals).  March 2012’s average of 49.2 degrees was an astonishing 8.8 degrees above normal.

This sends the month into the record books as the second warmest March ever recorded in Denver.  The number one spot is held by March 1910 which saw an average of 50.4 degrees.

Here in Thornton, we were actually slightly warmer than the official Denver measuring station at DIA.  Our monthly average temperature came in at 49.6 degrees.

Individually, six days set or tied high temperature records for Denver:

  • 74 degrees on March 13 which tied the old record of 74 set in 2007 and previous years
  • 75 degrees on March 16 which broke the old record of 74 set just one year ago in 2011
  • 76 degrees on March 17 which broke the old record of 75 set in 1974
  • 76 degrees on March 23 which tied the old record of 76 set in 1967
  • 75 degrees on March 25 which tied the old record of 75 set in 1998 and previous years
  • 81 degrees on March 31 which broke the old record of 80 set in 1946

In terms of precipitation, March 2012 will now hold the marks for the driest and least snowiest on record.

The rain bucket at Denver International Airport saw a mere 0.03 inch of liquid precipitation.  This was far below the average of 0.92 inch and easily puts March 2012 into the books as the number one driest March on record.  The previous record holder was 1908 when 0.11 inch was recorded.

March is historically Denver’s snowiest month averaging 10.7 inches.  This year the month only brought a trace of snow on three days.  The previous least snowiest March occurred in 1883 when 0.3 inch of the white stuff was recorded.

Just like Denver, Thornton saw an extraordinary lack of snow and precipitation.  We as well recorded 0.03 inch of precipitation but we did manage to record 0.40 inch of snow, all on the morning of the 2nd.

Click here to view the March 2012 climate summary for Thornton.

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOULDER, CO
1026 AM MDT SUN APR 1 2012

................................... 

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF MARCH 2012... 

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................ 
TEMPERATURE (F)
RECORD
 HIGH              84   03/26/1971
 LOW              -11   03/28/1886
HIGHEST            81   03/31        84      -3       76  03/21
LOWEST             16   03/02       -11      27       14  03/05
AVG. MAXIMUM     65.5              54.4    11.1     58.7
AVG. MINIMUM     32.9              26.4     6.5     27.8
MEAN             49.2              40.4     8.8     43.3
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               1.9    -1.9        1
DAYS MIN <= 32     14              23.6    -9.6       24
DAYS MIN <= 0       0               0.1    -0.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.56   1983
 MINIMUM         0.11   1908
TOTALS           0.03R             0.92   -0.89     0.35
DAILY AVG.       0.00              0.03   -0.03     0.01
DAYS >= .01         2               5.9    -3.9        8
DAYS >= .10         0               2.4    -2.4        1
DAYS >= .50         0               0.3    -0.3        0
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.03   03/01 TO 03/02           03/28 TO 03/28
                                                          03/28 TO 03/28
                                                          03/28 TO 03/28
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    03/28(00) TO 03/28(00)
                                                 03/28(00) TO 03/28(00)8
                                                 03/28(00) TO 03/28(00)8

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   5
TOTALS              T               11.7

DEGREE_DAYS
HEATING TOTAL     483               763    -280      666
 SINCE 7/1       4863              5202    -339     4817
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0

FREEZE DATES
RECORD
 EARLIEST     09/08/1962
 LATEST       06/08/2007
EARLIEST                        10/07
LATEST                          05/05
......................................................... 

WIND (MPH)
AVERAGE WIND SPEED              11.5
RESULTANT WIND SPEED/DIRECTION   5/203
HIGHEST WIND SPEED/DIRECTION    46/180    DATE  03/18
HIGHEST GUST SPEED/DIRECTION    58/190    DATE  03/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             20
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     34

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                0     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                       2     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

Sunday brings another record day; March 2012 likely to go into record books

Record setting high temperatures in Thornton.
March 2012 is on track to enter the record books as one of the warmest, driest and least snowiest since record-keeping began.

Another unseasonably mild day led to another high temperature record being tied on Sunday.  As the unseasonably warm weather continues, March 2012 is almost certain to go into the record books on a number of marks.

The temperature at Denver International Airport reached 75 degrees at 4:05pm Sunday afternoon.  This tied the record high temperature for the date last set in 1998.  This is far and above the normal for the date of 57 degrees.

Here in Thornton we were a bit cooler and reached a high temperature of 72.3 degrees.

The record-tying mark is the fifth time so far this month that the record high temperature was tied or broken.  Other days with record highs this month:

  • 76 degrees on March 23, which tied the old record of 76 set in 1967
  • 76 degrees on March 17, which broke the old record of 75 set in 1974
  • 75 degrees on March 16, which broke the old record of 74 set just one year ago in 2011
  • 74 degrees on March 13, which tied the old record of 74 set in 2007 and previous years

Officially Denver has recorded only a trace of snow this month and a scant 0.03 inch of precipitation.  Given the forecast for the coming week, it is likely the month will end with those totals.  If it does, March 2012 will go into the history books as the least snowiest and driest March on record.

In terms of temperatures, Denver’s overall average temperature for the month so far is at 47.0 degrees.  That would put the month in a tie for the fourth warmest March on record.  However with temperatures expected to remain unseasonably warm through the week, there is a good chance we will climb the ‘top 10’ list even further.

Click here for a list of the ‘top 10’ Marches.

Interactive map of snowfall totals across northeastern Colorado, February 2-4, 2012

Thornton residents have begun digging out from the major winter storm that deposited an extraordinary amount of snow on the city.  In the end, the storm will go into the record books as the biggest February snowstorm in Denver history.

Here is Thornton we recorded 13.8″ of snowfall and that was actually one of the lower totals across northeastern Colorado. It was however our biggest snowstorm since October 2009.

As officially recorded at Denver International Airport, Denver recorded 15.9 inches of snow from the storm system.  This handily broke the old single storm February record of 14.1 inches set in 1912.

Further, February 2012 now enters the history books as the 10th snowiest February ever recorded in Denver. With more than three weeks to go, it is possible we will climb the top 10 list even further.

The 12.5″ DIA saw yesterday set a new single day record for February 3rd beating the old record for the date of 9.5″ set in 1932. This also is the biggest single day snowfall total ever recorded in Denver during February.

For more details on Denver’s records, check out this story on Examiner.com.

Examiner.com slideshow: Record-setting snowstorm buries Denver and northeastern Colorado

Below is an interactive map of the snowfall reports from across eastern Colorado.  You can also click here to view a larger version.

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View map on GeoCommons

Time lapse video of Thornton’s February 2012 snowstorm

The snow has moved out and the sun will be shining soon as residents begin digging out from a record-setting snowstorm.  Here is Thornton we recorded 13.8″ of snowfall and that was actually one of the lower totals across northeastern Colorado. It was however Thornton’s biggest snowstorm since October 2009 when we recorded 14.1″ from a late month event.

Snow began falling Thursday evening and continued through the night, all through the day Friday and into Saturday morning.  By this morning most of the metro area was only seeing a few flakes falling and by the end of the day the sun will return.

Below is a time lapse video from our east facing webcam.  It covers from 4:00pm on Thursday, February 2 to 6:00am on Saturday, February 4 compressing that period into a little more than one minute.

Also see the Examiner.com slideshow: Record-setting snowstorm buries Denver and northeastern Colorado

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Denver sets 24 hour precipitation record for July 13; Closes in on top 10 wettest Julys

Record Rain
Denver easily broke the 24 hour precipitation record for July 13th.

It is readily apparent that July has thus far been a wet month given that we have seen eight straight days of thunderstorms.  Yesterday the storms set a record for precipitation and Denver is on pace to make the month one of the wettest Julys on record.

Out at Denver International Airport yesterday, 1.03” of precipitation was recorded.  This set the record for the date easily besting the old record of 0.45” set in 1993.

Here in Thornton we recorded 0.45” yesterday so a good bit less than out at the airport but still a decent shot of precipitation.

This brings Denver’s official total to 3.19” for the month so far. Average for the entire month of July is 2.16” so we are far ahead of that.

Number 10 on the ‘top 10 wettest Julys’ occurred in 1985 with 3.71”.  Given the fact that the forecast continues to contain daily thunderstorms for the foreseeable future, there is a good chance we will exceed that before the month is over.

Thornton is ahead of the game in comparison to DIA as we have recorded 4.52” so far this month.

Denver sets 24 hour precipitation record for June 20th

Record Rain
Denver easily broke the 24 hour precipitation record for June 20th.

It was a wet day in Denver yesterday and the statistics bear that one out.  The official Denver weather monitoring station at Denver International Airport recorded 1.05 inches of precipitation on June 20th.  This easily broke the previous record for the date of 0.50 inch set in 1938.

Here in Thornton we recorded a bit less but still a considerable amount – 0.87 inch.

The record setting rain in Denver does once again highlight the problems with having Denver’s monitoring station at DIA used for comparison to historical records.  The 12 mile move of the station in 1995 from its previous location has skewed Denver’s climate records.

With the event yesterday we see that the station in Denver City Park recorded no rain at all.  Had the National Weather Service logically choose to use this location, or the previous one at Stapleton, as the official source for Denver weather, no record would have been set.

For more on the problems with Denver’s climate records, see here:  Do Denver weather and climate records have an asterisk attached? (Examiner.com)