Climatological Report (Daily)
Issued by NWS
Issued by NWS
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683
CDUS46 KMTR 280831
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
131 AM PDT THU AUG 28 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 27 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 75 1:44 PM 94 1993 74 1 86
MINIMUM 59 5:32 AM 46 1951 56 3 55
1952
AVERAGE 67 65 2 71
PRECIPITATION (IN)
YESTERDAY 0.00 0.08 1949 0.00 0.00 0.00
MONTH TO DATE T 0.03 -0.03 0.10
SINCE OCT 1 16.11 19.56 -3.45 20.23
SINCE JAN 1 7.55 12.59 -5.04 14.90
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 21 37 -16 77
SINCE JUN 1 233 192 41 240
SINCE JUL 1 90 95 -5 127
COOLING
YESTERDAY 2 2 0 6
MONTH TO DATE 27 34 -7 14
SINCE JUN 1 29 83 -54 63
SINCE JAN 1 35 103 -68 74
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 9.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 5:00 AM
LOWEST 52 3:00 PM
AVERAGE 69
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 95 2009
MINIMUM TEMPERATURE (F) 56 49 1945
1952
SUNRISE AND SUNSET
AUGUST 28 2025........SUNRISE 6:37 AM PDT SUNSET 7:44 PM PDT
AUGUST 29 2025........SUNRISE 6:38 AM PDT SUNSET 7:42 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$