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Denver Weather Summary for 2005 |
CORRECTED NATIONAL WEATHER SERVICE BOULDER, CO 1130 AM MST THU FEB 03 2006 ................................... ...THE DENVER CLIMATE SUMMARY FOR THE YEAR OF 2005... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1872 TO 2005 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 105 07/20/2005 08/08/1878 LOW -29 01/09/1875 HIGHEST 105 07/20 MM MM 99 07/13 LOWEST -13 12/07 MM MM -11 01/05 AVG. MAXIMUM 65.7 64.3 1.4 64.0 AVG. MINIMUM 37.2 35.9 1.3 36.7 MEAN 51.5 50.2 1.3 50.3 DAYS MAX >= 90 55 33.4 21.6 20 DAYS MAX <= 32 16 22.1 -6.1 17 DAYS MIN <= 32 155 156 -1.0 157 DAYS MIN <= 0 4 9 -5.0 6 PRECIPITATION (INCHES) RECORD MAXIMUM 23.31 1967 MINIMUM 7.48 2002 TOTALS 12.80 15.81 -3.01 14.67 DAILY AVG. 0.04 0.04 -0.01 0.04 DAYS >= .01 75 88.9 -5.9 83 DAYS >= .10 34 MM -13.9 36 DAYS >= .50 6 MM MM 7 DAYS >= 1.00 2 MM MM 2 GREATEST 24 HR. TOTAL 1.27 04/09 TO 04/10 1.62 08/18 STORM TOTAL MM MM (MM/DD(HH)) MM MM --------------------------------------------------------------------- SNOWFALL (INCHES) RECORDS MAXIMUM 118.7 1908-09 MINIMUM 20.8 1888-89 24 HR TOTAL 23.6 1982 SNOW DEPTH MM MM TOTALS 40.7 (JUL-JUN) 61.7 -21.0 38.0 LIQUID EQUIV 3.30 MM MM 4.12 SINCE 7/1 14.7 25.6 -10.9 15.4 LIQUID 7/1 2.56 MM MM 1.01 SNOWDEPTH AVG. 2 MM MM 2 DAYS >= TRACE 25 MM MM 24 DAYS >= 1.0 13 6.6 6.4 15 GREATEST SNOW DEPTH 10 04/11 5 11/29 24 HR TOTAL 9.9 04/10 TO 04/11 5.5 04/10 TO 04/11 STORM TOTAL MM MM (MM/DD(HH)) MM MM DEGREE_DAYS HEATING TOTAL 5876 6128 -252 5758 SINCE 7/1 2236 2486 -250 2367 COOLING TOTAL 927 696 +231 499 SINCE 1/1 927 696 +231 499 FREEZE DATES RECORD EARLIEST 09/08/1962 LATEST 06/02/1951 EARLIEST 10/07 LATEST 05/12 ................................................................. WIND (MPH) AVERAGE WIND SPEED 10.0 RESULTANT WIND SPEED/DIRECTION 4/298 HIGHEST WIND SPEED/DIRECTION 54/280 DATE 12/29 HIGHEST GUST SPEED/DIRECTION 64/280 DATE 12/29 SKY COVER POSSIBLE SUNSHINE (PERCENT) 70 AVERAGE SKY COVER 0.50 NUMBER OF DAYS FAIR 71 NUMBER OF DAYS PC 222 NUMBER OF DAYS CLOUDY 72 AVERAGE RH (PERCENT) 53 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 49 MIXED PRECIP 5 HEAVY RAIN 4 RAIN 24 LIGHT RAIN 68 FREEZING RAIN 2 LT FREEZING RAIN 5 HAIL 4 HEAVY SNOW 2 SNOW 23 LIGHT SNOW 49 SLEET 2 FOG 99 FOG W/VIS <= 1/4 MILE 30 HAZE 24 TORNADO 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ ...HIGHLIGHTS FOR THE MONTHS OF 2005... DENVER'S 2005 CAME IN AS A MEDIOCRE YEAR AS FAR AS CLIMATOLOGY IS CONCERNED. THE YEAR DID FINISH SLIGHTLY ABOVE NORMAL FOR TEMPERATURE. THE AVERAGE TEMPERATURE WAS 65.7 DEGREES...1.4 DEGREES ABOVE THE NORMAL OF 64.3 DEGREES. TEMPERATURES RANGED FROM A RECORD TYING 105 DEGREES SET ON JULY 20TH DOWN TO ANOTHER RECORD -13 SET ON DECEMBER 7TH. THERE WERE 23 RECORDS EITHER SET OR TIED DURING THE YEAR. 16 RECORD HIGHS WERE SET OR TIED BUT ONLY 1 RECORD LOW WAS ESTABLISHED. ONE NOTEWORTHY RECORD WAS THE INTENSE JULY THAT WAS EXPERIENCED. THERE WERE 9 RECORD HIGHS SET...OF WHICH 7 WERE 100 DEGREES OR HIGHER. THE ALL TIME DENVER HIGH TEMPERATURE WAS TIED ON JULY 20TH WHEN THE MERCURY SOARED TO 105 DEGREES. THIS TIED THE RECORD DENVER HIGH SET WAY BACK ON AUGUST 8TH 1878. JULY 2005 BECAME THE 2ND ALL TIME HOTTEST JULY IN DENVER WEATHER HISTORY BUT IT WAS ALSO THE 3RD DRIEST JULY. RECORD RECORD RECORD RECORD RECORD DAILY MAX DAILY MIN LOW MAX HIGH MIN 24 HR PRECIP JAN 1 0 0 0 0 FEB 0 0 0 0 0 MAR 0 0 0 0 0 APR 0 0 0 0 1 MAY 2 0 0 0 0 JUN 0 0 0 1 0 JUL 9 0 0 0 0 AUG 0 0 2 0 0 SEP 0 0 0 1 0 OCT 2 0 1 0 2 NOV 0 0 0 0 0 DEC 2 1 1 1 0 ANNUAL 16 1 4 3 3 NEW TOP 10 RECORDS 2ND DRIEST FEBRUARY 2ND LEAST SNOWIEST FEBRUARY 4TH WETTEST JUNE 2ND HOTTEST JULY 3RD DRIEST JULY JULY...MOST 100 DEGREE DAYS (7) IN A MONTH OR SEASON PRECIPITATION ON THE OTHER HAND WAS QUITE DISMAL. ONLY A TOTAL OF 12.80 INCHES OF LIQUID MOISTURE FELL INTO THE RAIN BUCKET. THIS IS 3.01 INCHES BELOW THE NORMAL OF 15.81 INCHES. THERE WERE 9 MONTHS THAT WERE BELOW NORMAL AND ONLY 3 MONTHS THAT ACTUALLY COLLECTED ENOUGH WATER TO BE ABOVE NORMAL. JUNE 2005 BECAME THE 4TH WETTEST JUNE WITH 3.99 INCHES WHICH WAS 2.43 INCHES ABOVE NORMAL. JUNE TALLIED MORE PRECIPITATION THAN JANUARY...FEBRUARY...MARCH... MAY...JULY...SEPTEMBER...NOVEMBER AND DECEMBER COMBINED. SNOWFALL ALSO FELL IN THE BELOW NORMAL RANKS. THE ACTUAL SNOW SEASON FROM JULY 2004 THROUGH JUNE 2005 ACCUMULATED ONLY 40.7 INCHES WHICH WAS 21.0 INCHES BELOW THE NORMAL OF 61.7 INCHES. THE CALENDER YEAR SNOWFALL...JANUARY THROUGH DECEMBER 2005 WAS ALSO DISAPPOINTING WITH ONLY 40.0 INCHES. AN INTERESTING STATISTIC WAS THE 30 OCCURRENCES OF DENSE FOG (VISIBILITY 1/4 MILE OR LESS) COMPARED TO THE NORMAL OF ONLY 9 OCCURRENCES. THERE WERE 49 THUNDERSTORMS OBSERVED COMPARED TO THE NORM OF 42. THERE WERE 4 DAYS THAT RECORDED HAIL AND ONE TORNADO WAS OBSERVED BY DENVER INTERNATIONAL AIRPORT OBSERVERS. IT APPEARED TO BE A WINDY YEAR AS THE AVERAGE ANNUAL WIND SPEED TALLIED 10.0 MPH WHICH WAS ONLY 1.4 MPH ABOVE THE AVERAGE. THE MAXIMUM WIND GUST AT THE AIRPORT WAS 64 MPH FROM A WESTERLY DIRECTION (280 DEGREES) ON DECEMBER 29TH. BAROMETRIC PRESSURE THROUGHOUT THE YEAR RANGED FROM A HIGH OF 30.69 INCHES IN JANUARY DOWN TO 29.20 INCHES IN APRIL. BENTON/BURROUGHS
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