Climatological Report (Daily)
Issued by NWS
Issued by NWS
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742
CDUS46 KMTR 190035
CLISFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
535 PM PDT MON AUG 18 2025
...................................
...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 18 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 68 3:43 PM 88 1934 68 0 67
MINIMUM 56 7:43 AM 48 1898 56 0 57
AVERAGE 62 62 0 62
PRECIPITATION (IN)
TODAY 0.00 0.34 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 3
MONTH TO DATE 61 72 -11 75
SINCE JUN 1 437 393 44 325
SINCE JUL 1 224 224 0 170
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 91 1995
MINIMUM TEMPERATURE (F) 56 48 1955
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 6:28 AM PDT SUNSET 7:58 PM PDT
AUGUST 19 2025........SUNRISE 6:29 AM PDT SUNSET 7:57 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$