Climatological Report (Daily)
Issued by NWS
Issued by NWS
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005
CDUS46 KMTR 170829
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
129 AM PDT SAT MAY 17 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 16 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 68 10:49 AM 93 1956 68 0 70
MINIMUM 52 5:44 AM 44 1955 52 0 54
1984
AVERAGE 60 60 0 62
PRECIPITATION (IN)
YESTERDAY 0.00 0.29 2019 0.02 -0.02 0.00
MONTH TO DATE 0.11 0.29 -0.18 0.95
SINCE OCT 1 16.11 19.20 -3.09 20.13
SINCE JAN 1 7.55 12.23 -4.68 14.80
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE MAR 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 5 6 -1 3
MONTH TO DATE 84 99 -15 79
SINCE MAR 1 638 629 9 568
SINCE JUL 1 2171 2308 -137 1709
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 13 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 14.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 5:00 AM
LOWEST 56 12:00 PM
AVERAGE 71
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 93 1997
2009
MINIMUM TEMPERATURE (F) 52 45 1966
SUNRISE AND SUNSET
MAY 17 2025...........SUNRISE 5:58 AM PDT SUNSET 8:14 PM PDT
MAY 18 2025...........SUNRISE 5:57 AM PDT SUNSET 8:15 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$