Climatological Report (Daily)
Issued by NWS
Issued by NWS
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634
CDUS46 KMTR 170832
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
132 AM PDT THU JUL 17 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 16 2025...
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)
YESTERDAY
MAXIMUM 70 2:59 PM 87 1988 73 -3 70
MINIMUM 57 5:31 AM 49 1949 55 2 57
AVERAGE 64 64 0 64
PRECIPITATION (IN)
YESTERDAY 0.00 0.01 1990 0.00 0.00 0.00
MONTH TO DATE 0.00 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)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 1 2 -1 1
MONTH TO DATE 45 32 13 13
SINCE JUN 1 188 129 59 126
SINCE JUL 1 45 32 13 13
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 16 -16 31
SINCE JUN 1 1 39 -38 37
SINCE JAN 1 7 59 -52 48
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 11.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 2:00 AM
LOWEST 54 3:00 PM
AVERAGE 69
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 91 1961
MINIMUM TEMPERATURE (F) 55 47 1954
SUNRISE AND SUNSET
JULY 17 2025..........SUNRISE 6:02 AM PDT SUNSET 8:29 PM PDT
JULY 18 2025..........SUNRISE 6:03 AM PDT SUNSET 8:29 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$