


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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687 CDUS46 KMTR 280831 CLISFD CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 131 AM PDT THU AUG 28 2025 ................................... ...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 27 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 71 1:43 PM 95 1993 69 2 79 MINIMUM 60 2:43 AM 49 1955 56 4 56 AVERAGE 66 62 4 68 PRECIPITATION (IN) YESTERDAY 0.00 0.06 1954 0.00 0.00 0.00 MONTH TO DATE 0.03 0.05 -0.02 0.04 SINCE OCT 1 19.88 22.78 -2.90 25.76 SINCE JAN 1 9.68 14.48 -4.80 19.08 DEGREE DAYS HEATING YESTERDAY 0 3 -3 0 MONTH TO DATE 80 104 -24 83 SINCE JUN 1 456 425 31 333 SINCE JUL 1 243 256 -13 178 COOLING YESTERDAY 1 1 0 3 MONTH TO DATE 4 8 -4 9 SINCE JUN 1 4 27 -23 22 SINCE JAN 1 10 42 -32 28 ................................................................... THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 69 96 2009 MINIMUM TEMPERATURE (F) 56 49 1955 SUNRISE AND SUNSET AUGUST 28 2025........SUNRISE 6:37 AM PDT SUNSET 7:44 PM PDT AUGUST 29 2025........SUNRISE 6:38 AM PDT SUNSET 7:43 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$