610
CDUS46 KMTR 240831
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
131 AM PDT WED SEP 24 2025
...............................
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 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 95 2:46 PM 100 1939 80 15 95
MINIMUM 63 6:09 AM 35 1903 57 6 58
AVERAGE 79 68 11 77
PRECIPITATION (IN)
YESTERDAY 0.00 0.15 1904 0.00 0.00 0.00
MONTH TO DATE 0.41 0.04 0.37 0.00
SINCE OCT 1 9.72 13.45 -3.73 17.06
SINCE JAN 1 6.08 9.30 -3.22 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 1 -1 0
MONTH TO DATE 0 1 -1 0
SINCE SEP 1 0 1 -1 0
SINCE JUL 1 1 7 -6 0
COOLING
YESTERDAY 14 4 10 12
MONTH TO DATE 160 105 55 154
SINCE SEP 1 160 105 55 154
SINCE JAN 1 509 548 -39 964
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION N (340)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 5.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 3:00 AM
LOWEST 23 3:00 PM
AVERAGE 50
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THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 98 1964
MINIMUM TEMPERATURE (F) 57 40 1895
SUNRISE AND SUNSET
SEPTEMBER 24 2025.....SUNRISE 6:58 AM PDT SUNSET 7:01 PM PDT
SEPTEMBER 25 2025.....SUNRISE 6:58 AM PDT SUNSET 6:59 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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