478
CDUS46 KMTR 290832
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
132 AM PDT MON SEP 29 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 28 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 70 2:02 PM 96 2020 75 -5 66
MINIMUM 62 7:10 AM 47 1947 55 7 56
AVERAGE 66 65 1 61
PRECIPITATION (IN)
YESTERDAY 0.00 0.17 1976 0.01 -0.01 0.00
MONTH TO DATE 0.04 0.06 -0.02 0.00
SINCE OCT 1 16.15 19.63 -3.48 20.23
SINCE JAN 1 7.59 12.66 -5.07 14.90
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 4
MONTH TO DATE 3 40 -37 71
SINCE SEP 1 3 40 -37 71
SINCE JUL 1 93 142 -49 201
COOLING
YESTERDAY 1 2 -1 0
MONTH TO DATE 71 56 15 18
SINCE SEP 1 71 56 15 18
SINCE JAN 1 121 166 -45 92
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 7.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 5:00 AM
LOWEST 70 12:00 PM
AVERAGE 78
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THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 95 2020
MINIMUM TEMPERATURE (F) 55 45 1950
1955
SUNRISE AND SUNSET
SEPTEMBER 29 2025.....SUNRISE 7:04 AM PDT SUNSET 6:55 PM PDT
SEPTEMBER 30 2025.....SUNRISE 7:05 AM PDT SUNSET 6:53 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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