


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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304 CDUS45 KBOU 210802 CLIBDU CLIMATE REPORT NATIONAL WEATHER SERVICE DENVER/BOULDER 202 AM MDT THU AUG 21 2025 ................................... ...THE BOULDER AIRPORT CLIMATE SUMMARY FOR AUGUST 20 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 95 86 9 95 MINIMUM 59 55 4 61 AVERAGE 77 70 7 78 DEGREE DAYS HEATING YESTERDAY 0 MONTH TO DATE 0 COOLING YESTERDAY 12 MONTH TO DATE 232 ................................................ WIND (MPH) RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (30) HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NW (320) HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 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) 86 MM MM MINIMUM TEMPERATURE (F) 55 MM MM SUNRISE AND SUNSET AUGUST 21 2025........SUNRISE 619 AM MDT SUNSET 749 PM MDT AUGUST 22 2025........SUNRISE 620 AM MDT SUNSET 747 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$