Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 310835
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
135 AM PDT SUN AUG 31 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 30 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 84 2:15 PM 91 2023 74 10 71
MINIMUM 58 6:09 AM 45 1952 56 2 58
1955
AVERAGE 71 65 6 65
PRECIPITATION (IN)
YESTERDAY 0.00 0.11 1984 0.00 0.00 0.00
MONTH TO DATE T 0.04 -0.04 0.10
SINCE OCT 1 16.11 19.57 -3.46 20.23
SINCE JAN 1 7.55 12.60 -5.05 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 2 -2 0
MONTH TO DATE 21 41 -20 79
SINCE JUN 1 233 196 37 242
SINCE JUL 1 90 99 -9 129
COOLING
YESTERDAY 6 2 4 0
MONTH TO DATE 35 40 -5 14
SINCE JUN 1 37 89 -52 63
SINCE JAN 1 43 109 -66 74
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 11.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 2:00 AM
LOWEST 36 1:00 PM
AVERAGE 62
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 89 2005
MINIMUM TEMPERATURE (F) 56 48 1955
1957
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:39 AM PDT SUNSET 7:39 PM PDT
SEPTEMBER 1 2025.....SUNRISE 6:40 AM PDT SUNSET 7:38 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$