Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 220030
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
530 PM PDT MON JUL 21 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 21 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 66 1:39 PM 83 2006 73 -7 64
MINIMUM 58 6:29 AM 49 1949 56 2 55
1950
1954
AVERAGE 62 64 -2 60
PRECIPITATION (IN)
TODAY T 0.09 1979 0.00 0.00 0.00
MONTH TO DATE T 0.00 0.00 0.00
SINCE OCT 1 16.11 19.53 -3.42 20.13
SINCE JAN 1 7.55 12.56 -5.01 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 3 2 1 5
MONTH TO DATE 59 42 17 27
SINCE JUN 1 202 139 63 140
SINCE JUL 1 59 42 17 27
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 0 21 -21 34
SINCE JUN 1 1 44 -43 40
SINCE JAN 1 7 64 -57 51
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 12.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 7:00 AM
LOWEST 68 2:00 PM
AVERAGE 81
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 97 2006
MINIMUM TEMPERATURE (F) 56 49 1954
1968
1981
SUNRISE AND SUNSET
JULY 21 2025..........SUNRISE 6:05 AM PDT SUNSET 8:27 PM PDT
JULY 22 2025..........SUNRISE 6:06 AM PDT SUNSET 8:26 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$