Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 150838
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT FRI AUG 15 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 14 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 1:20 PM 99 2020 73 -3 69
MINIMUM 58 6:26 AM 47 1946 57 1 52
AVERAGE 64 65 -1 61
PRECIPITATION (IN)
YESTERDAY 0.00 0.13 1976 0.00 0.00 0.00
MONTH TO DATE T 0.01 -0.01 T
SINCE OCT 1 16.11 19.54 -3.43 20.13
SINCE JAN 1 7.55 12.57 -5.02 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 1 0 4
MONTH TO DATE 17 24 -7 58
SINCE JUN 1 229 179 50 221
SINCE JUL 1 86 82 4 108
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 6 14 -8 0
SINCE JUN 1 8 63 -55 49
SINCE JAN 1 14 83 -69 60
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 10.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 12:00 AM
LOWEST 65 1:00 PM
AVERAGE 79
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 94 2019
2020
MINIMUM TEMPERATURE (F) 57 46 1955
SUNRISE AND SUNSET
AUGUST 15 2025........SUNRISE 6:26 AM PDT SUNSET 8:01 PM PDT
AUGUST 16 2025........SUNRISE 6:27 AM PDT SUNSET 8:00 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$