155
CDUS46 KMTR 010825
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT THU MAY 01 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 30 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 67 MM 90 1996 67 0 65
2014
MINIMUM 54 11:00 PM 41 1946 50 4 49
AVERAGE 61 58 3 57
PRECIPITATION (IN)
YESTERDAY 0.00 0.71 1983 0.02 -0.02 0.00
MONTH TO DATE 0.33 1.36 -1.03 0.77
SINCE OCT 1 15.96 18.91 -2.95 19.18
SINCE JAN 1 7.40 11.94 -4.54 13.85
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE MAR 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 4 7 -3 8
MONTH TO DATE 146 234 -88 212
SINCE MAR 1 462 530 -68 489
SINCE JUL 1 1995 2209 -214 1630
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 5 -5 0
SINCE MAR 1 3 6 -3 1
SINCE JAN 1 3 6 -3 1
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 13.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 11:00 PM
LOWEST 59 1:00 PM
AVERAGE 73
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 89 1947
MINIMUM TEMPERATURE (F) 50 44 1983
1988
2008
SUNRISE AND SUNSET
MAY 1 2025...........SUNRISE 6:14 AM PDT SUNSET 8:00 PM PDT
MAY 2 2025...........SUNRISE 6:12 AM PDT SUNSET 8:01 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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