Climatological Report (Daily)
Issued by NWS
Issued by NWS
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041
CDUS46 KMTR 270840
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
140 AM PDT WED AUG 27 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 26 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 76 1:44 PM 89 1993 74 2 83
MINIMUM 59 4:37 AM 48 1945 56 3 56
AVERAGE 68 65 3 70
PRECIPITATION (IN)
YESTERDAY 0.00 0.01 1961 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 36 -15 77
SINCE JUN 1 233 191 42 240
SINCE JUL 1 90 94 -4 127
COOLING
YESTERDAY 3 2 1 5
MONTH TO DATE 25 32 -7 8
SINCE JUN 1 27 81 -54 57
SINCE JAN 1 33 101 -68 68
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 10.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 1:00 AM
LOWEST 51 2:00 PM
AVERAGE 71
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 1993
MINIMUM TEMPERATURE (F) 56 46 1951
1952
SUNRISE AND SUNSET
AUGUST 27 2025........SUNRISE 6:36 AM PDT SUNSET 7:45 PM PDT
AUGUST 28 2025........SUNRISE 6:37 AM PDT SUNSET 7:44 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$