Climatological Report (Daily)
Issued by NWS
Issued by NWS
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721
CDUS46 KMTR 210830
CLISFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT THU AUG 21 2025
...................................
...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 20 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 74 10:43 AM 84 1916 68 6 74
MINIMUM 56 6:43 AM 49 1898 56 0 55
AVERAGE 65 62 3 65
PRECIPITATION (IN)
YESTERDAY 0.00 0.19 1997 0.00 0.00 0.00
MONTH TO DATE 0.03 0.04 -0.01 0.00
SINCE OCT 1 19.88 22.77 -2.89 25.72
SINCE JAN 1 9.68 14.47 -4.79 19.04
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 63 80 -17 78
SINCE JUN 1 439 401 38 328
SINCE JUL 1 226 232 -6 173
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 1 0 0
SINCE JUN 1 1 20 -19 13
SINCE JAN 1 7 35 -28 19
...................................................................
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 88 1891
MINIMUM TEMPERATURE (F) 56 47 1898
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 6:31 AM PDT SUNSET 7:54 PM PDT
AUGUST 22 2025........SUNRISE 6:32 AM PDT SUNSET 7:53 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$