781
CDUS46 KMTR 010038
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
538 PM PDT THU JUL 31 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 31 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 72 1:32 PM 97 1993 73 -1 68
MINIMUM 59 6:17 AM 49 1953 56 3 55
1954
1956
AVERAGE 66 64 2 62
PRECIPITATION (IN)
TODAY 0.00 0.02 1949 0.00 0.00 0.00
MONTH TO DATE T 0.00 0.00 0.00
SINCE OCT 1 16.11 19.53 -3.42 20.13
SINCE JAN 1 7.55 12.56 -5.01 14.80
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 2 -2 3
MONTH TO DATE 69 62 7 50
SINCE JUN 1 212 159 53 163
SINCE JUL 1 69 62 7 50
COOLING
TODAY 1 1 0 0
MONTH TO DATE 1 26 -25 43
SINCE JUN 1 2 49 -47 49
SINCE JAN 1 8 69 -61 60
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 3:00 AM
LOWEST 61 2:00 PM
AVERAGE 74
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 1975
MINIMUM TEMPERATURE (F) 56 48 1951
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 6:13 AM PDT SUNSET 8:18 PM PDT
AUGUST 1 2025........SUNRISE 6:14 AM PDT SUNSET 8:17 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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