Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 130828
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT WED AUG 13 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 12 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 68 3:10 PM 89 1958 73 -5 66
1959
MINIMUM 57 1:44 AM 47 1946 56 1 53
AVERAGE 63 65 -2 60
PRECIPITATION (IN)
YESTERDAY 0.00 T 1986 0.00 0.00 0.00
1988
1991
MONTH TO DATE 0.00 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 2 1 1 5
MONTH TO DATE 16 22 -6 51
SINCE JUN 1 228 177 51 214
SINCE JUL 1 85 80 5 101
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 6 12 -6 0
SINCE JUN 1 8 61 -53 49
SINCE JAN 1 14 81 -67 60
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 13.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 1:00 AM
LOWEST 66 3:00 PM
AVERAGE 78
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 1991
MINIMUM TEMPERATURE (F) 57 47 1946
SUNRISE AND SUNSET
AUGUST 13 2025........SUNRISE 6:24 AM PDT SUNSET 8:04 PM PDT
AUGUST 14 2025........SUNRISE 6:25 AM PDT SUNSET 8:03 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$