214
CXUS55 KBOU 011501
CLMDEN
CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER
901 AM MDT THU OCT 01 2026
...............................
..THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 101 09/05/2020
LOW 17 09/29/1985
HIGHEST 94 09/05 91 3 91 09/10
09/13
LOWEST 49 09/20 35 14 43 09/06
AVG. MAXIMUM 82.2 79.6 2.6 78.0
AVG. MINIMUM 56.3 50.0 6.3 51.4
MEAN 69.2 64.8 4.4 64.7
DAYS MAX >= 90 6 4.2 1.8 1
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.7 -0.7 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.61 2013
MINIMUM T 1892
TOTALS 2.23 1.35 0.88 1.76
DAILY AVG. 0.07 0.04 0.03 0.06
DAYS >= .01 7 6.0 1.0 6
DAYS >= .10 3 2.7 0.3 2
DAYS >= .50 2 0.6 1.4 1
DAYS >= 1.00 1 0.1 0.9 1
GREATEST
24 HR. TOTAL 1.10 09/25 TO 09/25 1.28 09/23 TO 09/23
SNOWFALL (INCHES)
RECORDS
TOTAL 17.2 1971
TOTALS 0.0
DEGREE DAYS
HEATING TOTAL 18 105 -87 61
SINCE 7/1 20 119 -99 MM
COOLING TOTAL 154 99 55 61
SINCE 1/1 1145 842 303 MM
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST MM
LATEST 05/06
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WIND (MPH)
AVERAGE WIND SPEED 8.9
RESULTANT WIND SPEED/DIRECTION 2/170
HIGHEST WIND SPEED/DIRECTION 46/170 DATE 09/22
HIGHEST GUST SPEED/DIRECTION 65/170 DATE 09/22
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.56
NUMBER OF DAYS FAIR 6
NUMBER OF DAYS PC 17
NUMBER OF DAYS CLOUDY 7
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 7 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 1
LIGHT RAIN 10 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 1
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 3 FOG W/VIS <= 1/4 MILE 1
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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