Climatological Report (Daily)
Issued by NWS
Issued by NWS
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662
CDUS46 KMTR 170841
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
141 AM PDT THU APR 17 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 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 62 11:47 AM 81 1999 66 -4 72
MINIMUM 53 5:04 AM 40 1975 49 4 50
AVERAGE 58 57 1 61
PRECIPITATION (IN)
YESTERDAY 0.00 0.64 2000 0.05 -0.05 0.00
MONTH TO DATE 0.33 0.92 -0.59 0.77
SINCE OCT 1 15.96 18.47 -2.51 19.18
SINCE JAN 1 7.40 11.50 -4.10 13.85
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE MAR 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 7 8 -1 4
MONTH TO DATE 118 131 -13 137
SINCE MAR 1 434 427 7 414
SINCE JUL 1 1967 2106 -139 1555
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 9 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 9.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 4:00 AM
LOWEST 58 12:00 PM
AVERAGE 72
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 83 2016
MINIMUM TEMPERATURE (F) 49 40 1963
SUNRISE AND SUNSET
APRIL 17 2025.........SUNRISE 6:31 AM PDT SUNSET 7:47 PM PDT
APRIL 18 2025.........SUNRISE 6:30 AM PDT SUNSET 7:48 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$