Climatological Report (Daily)
Issued by NWS
Issued by NWS
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926
CDUS46 KMTR 200025
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
525 PM PDT TUE AUG 19 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 19 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 1:06 PM 89 1964 74 -1 70
MINIMUM 58 5:56 AM 49 1955 57 1 52
AVERAGE 66 65 1 61
PRECIPITATION (IN)
TODAY 0.00 0.56 1997 0.00 0.00 0.00
MONTH TO DATE T 0.02 -0.02 T
SINCE OCT 1 16.11 19.55 -3.44 20.13
SINCE JAN 1 7.55 12.58 -5.03 14.80
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 1 -1 4
MONTH TO DATE 17 29 -12 71
SINCE JUN 1 229 184 45 234
SINCE JUL 1 86 87 -1 121
COOLING
TODAY 1 1 0 0
MONTH TO DATE 12 19 -7 1
SINCE JUN 1 14 68 -54 50
SINCE JAN 1 20 88 -68 61
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 11.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 6:00 AM
LOWEST 49 1:00 PM
AVERAGE 70
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 89 2023
MINIMUM TEMPERATURE (F) 57 47 1955
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 6:29 AM PDT SUNSET 7:56 PM PDT
AUGUST 20 2025........SUNRISE 6:30 AM PDT SUNSET 7:55 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$