Climatological Report (Daily)
Issued by NWS
Issued by NWS
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981
CDUS46 KMTR 120836
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
136 AM PDT MON MAY 12 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 11 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 64 2:01 PM 85 1959 68 -4 70
MINIMUM 52 5:40 AM 42 1953 51 1 54
1982
AVERAGE 58 60 -2 62
PRECIPITATION (IN)
YESTERDAY 0.00 0.11 1958 0.02 -0.02 0.00
MONTH TO DATE 0.01 0.21 -0.20 0.95
SINCE OCT 1 16.01 19.12 -3.11 20.13
SINCE JAN 1 7.45 12.15 -4.70 14.80
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE MAR 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 7 6 1 3
MONTH TO DATE 57 69 -12 54
SINCE MAR 1 611 599 12 543
SINCE JUL 1 2144 2278 -134 1684
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 2 0 2 10
SINCE MAR 1 5 6 -1 11
SINCE JAN 1 5 6 -1 11
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 15 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 15.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 4:00 AM
LOWEST 48 2:00 PM
AVERAGE 66
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 96 1976
MINIMUM TEMPERATURE (F) 51 42 1953
SUNRISE AND SUNSET
MAY 12 2025...........SUNRISE 6:02 AM PDT SUNSET 8:10 PM PDT
MAY 13 2025...........SUNRISE 6:01 AM PDT SUNSET 8:11 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$