Climatological Report (Daily)
Issued by NWS
Issued by NWS
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783
CDUS46 KMTR 180837
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
137 AM PDT FRI APR 18 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 17 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 61 4:31 PM 83 2016 66 -5 76
MINIMUM 51 6:51 AM 40 1963 49 2 52
AVERAGE 56 57 -1 64
PRECIPITATION (IN)
YESTERDAY T 0.80 1957 0.04 -0.04 0.00
MONTH TO DATE 0.33 0.96 -0.63 0.77
SINCE OCT 1 15.96 18.51 -2.55 19.18
SINCE JAN 1 7.40 11.54 -4.14 13.85
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE MAR 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 9 8 1 1
MONTH TO DATE 127 139 -12 138
SINCE MAR 1 443 435 8 415
SINCE JUL 1 1976 2114 -138 1556
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 3 1 2 1
SINCE JAN 1 3 1 2 1
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 AM
LOWEST 60 4:00 PM
AVERAGE 77
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 83 1950
MINIMUM TEMPERATURE (F) 49 39 1967
1968
SUNRISE AND SUNSET
APRIL 18 2025.........SUNRISE 6:30 AM PDT SUNSET 7:48 PM PDT
APRIL 19 2025.........SUNRISE 6:29 AM PDT SUNSET 7:49 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$