865
CDUS45 KBOU 180731
CLIBDU
CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER
131 AM MDT THU SEP 18 2025
...............................
..THE BOULDER AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999
WEATHER ITEM OBSERVED NORMAL DEPARTURE LAST
VALUE VALUE FROM YEAR
NORMAL
............................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 68 79 -11 86
MINIMUM 45 48 -3 54
AVERAGE 57 63 -6 70
DEGREE DAYS
HEATING
YESTERDAY 8
MONTH TO DATE 22
COOLING
YESTERDAY 0
MONTH TO DATE 73
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WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
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THE BOULDER AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 MM MM
MINIMUM TEMPERATURE (F) 48 MM MM
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 645 AM MDT SUNSET 704 PM MDT
SEPTEMBER 19 2025.....SUNRISE 646 AM MDT SUNSET 702 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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