


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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839 CDUS46 KMTR 010042 CLIHWD CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 542 PM PDT SUN AUG 31 2025 ................................... ...THE HAYWARD AIRPORT CLIMATE SUMMARY FOR AUGUST 31 2025... VALID TODAY AS OF 0500 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 88 12:32 PM 91 2017 78 10 75 MINIMUM 61 5:29 AM 55 1999 58 3 62 2021 AVERAGE 75 68 7 69 PRECIPITATION (IN) TODAY 0.00 0.00 MONTH TO DATE 0.00 0.02 SINCE OCT 1 14.64 21.86 SINCE JAN 1 7.43 17.00 DEGREE DAYS HEATING TODAY 0 0 MONTH TO DATE 7 6 SINCE JUN 1 119 33 SINCE JUL 1 40 10 COOLING TODAY 10 4 MONTH TO DATE 79 130 SINCE JUN 1 108 406 SINCE JAN 1 156 437 ................................................................... WIND (MPH) RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (300) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (280) 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 78 12:00 AM LOWEST 24 12:00 PM AVERAGE 51 .......................................................... THE HAYWARD AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 103 2017 MINIMUM TEMPERATURE (F) 58 53 1999 SUNRISE AND SUNSET AUGUST 31 2025........SUNRISE 6:38 AM PDT SUNSET 7:38 PM PDT SEPTEMBER 1 2025.....SUNRISE 6:39 AM PDT SUNSET 7:37 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$