Climatological Report (Monthly) Issued by NWS Denver/Boulder, CO
000
CXUS55 KBOU 011540
CLMDEN
CLIMATE REPORT
NATIONAL WEATHER SERVICE
940 AM MDT SUN OCT 01 2023
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...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 101 09/05/2020
LOW 17 09/29/1985
HIGHEST 99 09/01 91 8 99 09/07
09/08
LOWEST 40 09/24 35 5 42 09/25
AVG. MAXIMUM 83.7 79.6 4.1 84.3
AVG. MINIMUM 52.3 50.0 2.3 53.6
MEAN 68.0 64.8 3.2 69.0
DAYS MAX >= 90 7 4.2 2.8 10
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 0.67 1.35 -0.68 1.25
DAILY AVG. 0.02 0.04 -0.02 0.04
DAYS >= .01 5 6.0 -1.0 7
DAYS >= .10 2 2.7 -0.7 4
DAYS >= .50 0 0.6 -0.6 1
DAYS >= 1.00 0 0.1 -0.1 0
GREATEST
24 HR. TOTAL 0.43 09/14 TO 09/15 0.50 09/02 TO 09/02
STORM TOTAL 0.40 0.50
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
TOTALS 0.0 MM
DEGREE DAYS
HEATING TOTAL 33 105 -72 53
SINCE 7/1 37 117 -80 MM
COOLING TOTAL 132 99 33 178
SINCE 1/1 779 842 -63 MM
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST MM
LATEST 04/23
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WIND (MPH)
AVERAGE WIND SPEED 9.1
RESULTANT WIND SPEED/DIRECTION 3/200
HIGHEST WIND SPEED/DIRECTION 39/200 DATE 09/30
HIGHEST GUST SPEED/DIRECTION 52/190 DATE 09/30
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.36
NUMBER OF DAYS FAIR 16
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 1
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 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 4 FOG W/VIS <= 1/4 MILE 0
HAZE 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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