Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KBOU 180740
CLIBDU
CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER
140 AM MDT FRI SEP 18 2026
...................................
...THE BOULDER AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 2026...
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 73 79 -6 68
MINIMUM 63 48 15 45
AVERAGE 68 63 5 57
DEGREE DAYS
HEATING
YESTERDAY 0
MONTH TO DATE 1
COOLING
YESTERDAY 3
MONTH TO DATE 140
................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (230)
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
..........................................................
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 2026.....SUNRISE 645 AM MDT SUNSET 704 PM MDT
SEPTEMBER 19 2026.....SUNRISE 646 AM MDT SUNSET 703 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$