


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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987 CDUS46 KMTR 030839 CLISFD CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 139 AM PDT WED SEP 03 2025 ................................... ...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR SEPTEMBER 2 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1850 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 73 3:43 PM 102 2017 70 3 69 MINIMUM 57 6:43 AM 49 1910 56 1 59 AVERAGE 65 63 2 64 PRECIPITATION (IN) YESTERDAY 0.00 0.02 1861 0.00 0.00 0.00 MONTH TO DATE 0.00 0.00 0.00 0.00 SINCE OCT 1 19.88 22.79 -2.91 25.76 SINCE JAN 1 9.68 14.49 -4.81 19.08 DEGREE DAYS HEATING YESTERDAY 0 4 -4 1 MONTH TO DATE 1 8 -7 3 SINCE SEP 1 1 8 -7 3 SINCE JUL 1 246 278 -32 191 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 0 2 -2 0 SINCE SEP 1 0 2 -2 0 SINCE JAN 1 19 52 -33 28 ................................................................... THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 70 92 1961 MINIMUM TEMPERATURE (F) 56 50 1909 SUNRISE AND SUNSET SEPTEMBER 3 2025.....SUNRISE 6:42 AM PDT SUNSET 7:35 PM PDT SEPTEMBER 4 2025.....SUNRISE 6:43 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. $$