


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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776 CDUS46 KMTR 220028 CLICCR CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 528 PM PDT THU AUG 21 2025 ................................... ...THE CONCORD AIRPORT CLIMATE SUMMARY FOR AUGUST 21 2025... VALID TODAY AS OF 0500 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1999 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 101R 3:33 PM 99 2009 88 13 87 MINIMUM 62 6:07 AM 55 2006 60 2 61 2012 AVERAGE 82 74 8 74 PRECIPITATION (IN) TODAY 0.00 0.00 MONTH TO DATE 0.00 T SINCE OCT 1 4.30 12.46 SINCE JAN 1 2.04 9.33 DEGREE DAYS HEATING TODAY 0 0 MONTH TO DATE 0 0 SINCE JUN 1 1 3 SINCE JUL 1 0 3 COOLING TODAY 17 9 MONTH TO DATE 202 221 SINCE JUN 1 531 885 SINCE JAN 1 642 968 ................................................................... WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (310) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (240) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (310) AVERAGE WIND SPEED 4.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 87 4:00 AM LOWEST 18 3:00 PM AVERAGE 53 .......................................................... THE CONCORD AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 88 100 1999 MINIMUM TEMPERATURE (F) 60 53 2005 SUNRISE AND SUNSET AUGUST 21 2025........SUNRISE 6:29 AM PDT SUNSET 7:53 PM PDT AUGUST 22 2025........SUNRISE 6:30 AM PDT SUNSET 7:51 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$