


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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056 CDUS46 KMTR 020036 CLISJC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 536 PM PDT MON SEP 01 2025 ................................... ...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 1 2025... VALID TODAY AS OF 0500 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1893 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 90 3:34 PM 108 2017 82 8 79 MINIMUM 61 6:03 AM 44 1895 58 3 60 1910 AVERAGE 76 70 6 70 PRECIPITATION (IN) TODAY 0.00 0.09 2000 0.00 0.00 0.00 MONTH TO DATE 0.00 0.00 0.00 0.00 SINCE OCT 1 9.31 13.41 -4.10 17.06 SINCE JAN 1 5.67 9.26 -3.59 13.63 SNOWFALL (IN) TODAY MM 0.0 1947 MONTH TO DATE MM SINCE SEP 1 MM SINCE JUL 1 T DEGREE DAYS HEATING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE SEP 1 0 0 0 0 SINCE JUL 1 1 6 -5 0 COOLING TODAY 11 5 6 5 MONTH TO DATE 11 5 6 5 SINCE SEP 1 11 5 6 5 SINCE JAN 1 360 448 -88 815 ................................................................... WIND (MPH) RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (330) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (320) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 6.5 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 90 6:00 AM LOWEST 26 3:00 PM AVERAGE 58 .......................................................... THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 82 107 2017 MINIMUM TEMPERATURE (F) 58 42 1895 SUNRISE AND SUNSET SEPTEMBER 1 2025.....SUNRISE 6:39 AM PDT SUNSET 7:36 PM PDT SEPTEMBER 2 2025.....SUNRISE 6:39 AM PDT SUNSET 7:34 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$