


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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517 CDUS45 KBOU 100731 CLIBDU CLIMATE REPORT NATIONAL WEATHER SERVICE DENVER/BOULDER 131 AM MDT FRI OCT 10 2025 ................................... ...THE BOULDER AIRPORT CLIMATE SUMMARY FOR OCTOBER 9 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 82 69 13 81 MINIMUM 46 39 7 50 AVERAGE 64 54 10 66 DEGREE DAYS HEATING YESTERDAY 1 MONTH TO DATE 54 COOLING YESTERDAY 0 MONTH TO DATE 11 ................................................ WIND (MPH) RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (170) HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SE (150) 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. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST MM LOWEST MM AVERAGE MM .......................................................... THE BOULDER AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 MM MM MINIMUM TEMPERATURE (F) 39 MM MM SUNRISE AND SUNSET OCTOBER 10 2025.......SUNRISE 707 AM MDT SUNSET 628 PM MDT OCTOBER 11 2025.......SUNRISE 708 AM MDT SUNSET 627 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$