Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 180034
CLISFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
534 PM PDT SUN AUG 17 2025
...................................
...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 17 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 66 1:43 PM 92 1892 68 -2 73
MINIMUM 57 5:43 AM 49 1894 56 1 57
AVERAGE 62 62 0 65
PRECIPITATION (IN)
TODAY 0.00 0.06 1976 0.00 0.00 0.00
MONTH TO DATE 0.03 0.03 0.00 0.00
SINCE OCT 1 19.88 22.76 -2.88 25.72
SINCE JAN 1 9.68 14.46 -4.78 19.04
DEGREE DAYS
HEATING
TODAY 3 4 -1 0
MONTH TO DATE 58 68 -10 72
SINCE JUN 1 434 389 45 322
SINCE JUL 1 221 220 1 167
COOLING
TODAY 0 0 0 0
MONTH TO DATE 1 0 1 0
SINCE JUN 1 1 19 -18 13
SINCE JAN 1 7 34 -27 19
...................................................................
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 88 1934
MINIMUM TEMPERATURE (F) 56 48 1898
SUNRISE AND SUNSET
AUGUST 17 2025........SUNRISE 6:27 AM PDT SUNSET 7:59 PM PDT
AUGUST 18 2025........SUNRISE 6:28 AM PDT SUNSET 7:58 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$