988
CDUS46 KMTR 030839
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
139 AM PDT WED SEP 03 2025
...............................
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 2 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 11:53 AM 107 2017 82 4 80
MINIMUM 64 11:59 PM 42 1895 58 6 58
AVERAGE 75 70 5 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.08 1912 0.00 0.00 0.00
MONTH TO DATE 0.00 0.00 0.00 0.00
SINCE OCT 1 9.31 13.41 -4.10 17.06
SINCE JAN 1 5.67 9.26 -3.59 13.63
SNOWFALL (IN)
YESTERDAY MM 0.0 1947
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 1 6 -5 0
COOLING
YESTERDAY 10 5 5 4
MONTH TO DATE 21 10 11 9
SINCE SEP 1 21 10 11 9
SINCE JAN 1 370 453 -83 819
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 8.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 11:00 PM
LOWEST 40 3:00 PM
AVERAGE 57
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THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 99 1950
MINIMUM TEMPERATURE (F) 58 45 1919
SUNRISE AND SUNSET
SEPTEMBER 3 2025.....SUNRISE 6:40 AM PDT SUNSET 7:33 PM PDT
SEPTEMBER 4 2025.....SUNRISE 6:41 AM PDT SUNSET 7:31 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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