CLIMATE REPORT
NATIONAL WEATHER SERVICE BOULDER, CO
200 PM MST TUE JAN 1 2008
...................................
...THE DENVER CLIMATE SUMMARY FOR THE YEAR OF 2007...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1872 TO 2007
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 100 06/24 103 10/07
07/02
07/17
LOWEST -18 02/02 -13 02/18
AVG. MAXIMUM 64.3 64.2 0.1 66.2
AVG. MINIMUM 37.0 35.8 1.2 37.3
MEAN 50.6 50.2 0.4 51.7
DAYS MAX >= 90 54 33.4 20.6 54
DAYS MAX <= 32 41 22.1 18.9 20
DAYS MIN <= 32 139 156.0 -17.0 157
DAYS MIN <= 0 8 7.8 0.2 5
WARMEST YEAR 54.8 1934
COLDEST YEAR 47.6 1911
PRECIPITATION (INCHES)
RECORD
MAXIMUM 23.31 1967
MINIMUM 7.48 2002
TOTALS 14.00 15.81 -1.81 8.64
DAILY AVG. 0.04 0.04 0.00 0.02
DAYS >= .01 81 89.1 -8.1 71
DAYS >= .10 34 MM MM 29
DAYS >= .50 4 MM MM 3
DAYS >= 1.00 2 MM MM 0
GREATEST
24 HR. TOTAL 2.65 10/13 TO 10/14 0.77 07/08 TO 07/09
STORM TOTAL MM MM
(MM/DD(HH)) MM MM
SNOWFALL (INCHES)
RECORDS
TOTAL MAXIMUM 118.7 1908-09
TOTAL MINIMUM 20.8 1887-88
24 HR TOTAL 23.6 12/24/1882
SNOW DEPTH MM MM
TOTALS 55.4 61.7 -6.3 59.4
LIQUID EQUIV MM MM MM MM
SINCE 7/1 26.4 25.6 0.8 43.6
LIQUID 7/1 MM MM MM MM
SNOWDEPTH AVG. MM MM MM MM
DAYS >= TRACE 43 MM MM 32
DAYS >= 1.0 19 MM MM 15
GREATEST
SNOW DEPTH 14 01/22 21 12/21
01/06 12/22
24 HR TOTAL 7.8 12/25 TO 12/26 20.7 12/20 TO 12/21
STORM TOTAL 7.8 20.7 12/20 TO 12/21
(MM/DD(HH)) 12/25 TO 12/26
DEGREE_DAYS
HEATING TOTAL 6068 6128 -60 5659
SINCE 7/1 2312 2486 -174 2452
COOLING TOTAL 963 696 267 961
SINCE 1/1 963 696 267 961
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 10/08
LATEST 06/08
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 9.8
RESULTANT WIND SPEED/DIRECTION 3/199
HIGHEST WIND SPEED/DIRECTION 48/360 03/28 02/24
HIGHEST GUST SPEED/DIRECTION 60/360 02/24
SKY COVER
POSSIBLE SUNSHINE (PERCENT) 78
NUMBER OF DAYS FAIR 66
NUMBER OF DAYS PC 232
NUMBER OF DAYS CLOUDY 67
AVERAGE RH (PERCENT) 54
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 65 MIXED PRECIP 4
HEAVY RAIN 8 RAIN 24
LIGHT RAIN 66 FREEZING RAIN 1
LT FREEZING RAIN 10 HAIL 6
HEAVY SNOW 5 SNOW 26
LIGHT SNOW 47 SLEET 0
FOG 99 FOG W/VIS <= 1/4 MILE 35
HAZE 47
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
...Denver's Preliminary 2007 Climatological Annual Statistics...
There was nothing spectacular in Denver's 2007 annual climatological statistics. None
of the annual statistics made it into the top ten annual categories...warmest ...
coldest... wettest...driest...snowiest and/or least snowiest. Temperatures extremes in
2007 ranged from minus 18 degrees on February 2nd up to 100 degrees recorded on June
24th...July 2nd and July 17th. The minus 18 temperature was a new February 2nd daily
record. The July 2nd 100 degree reading tied a daily record but the July 17th 100
degree reading was not high enough to tie or break the record for that date. The
average temperature for the year through December 30th was slightly above normal.
Precipitation for the year was 14.00 inches which was 1.81 inches below the yearly
normal (15.81 inches). Snowfall for the calendar year...which is January through
December...was 55.4 inches which is 6.3 inches below the 61.7 inch normal. Seasonal
snowfall is measured from July 1st through June 30th. So far...July through
December...26.4 inches has been tallied which is only 0.8 inch above the seasonal
average for the 1st half of the 2007-2008 season. There were 18 different types of
records tied or set during the year. In the snowfall category...there was 7.8 inches
recorded on Christmas Day which was a new record snowfall for December 25th. The
previous Christmas Day record was 6.2 inches...recorded in 1894.
BENTON
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