664
CDUS46 KMTR 260830
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT FRI SEP 26 2025
...............................
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 25 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 84 11:45 AM 99 2019 80 4 79
MINIMUM 62 11:07 PM 42 1929 56 6 59
AVERAGE 73 68 5 69
PRECIPITATION (IN)
YESTERDAY 0.03 0.69 1909 0.00 0.03 0.00
MONTH TO DATE 0.44 0.04 0.40 0.00
SINCE OCT 1 9.75 13.45 -3.70 17.06
SINCE JAN 1 6.11 9.30 -3.19 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 3 -3 0
SINCE SEP 1 0 3 -3 0
SINCE JUL 1 1 9 -8 0
COOLING
YESTERDAY 8 4 4 4
MONTH TO DATE 180 113 67 171
SINCE SEP 1 180 113 67 171
SINCE JAN 1 529 556 -27 981
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (330)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 6.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 4:00 AM
LOWEST 46 12:00 PM
AVERAGE 67
......................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 98 1963
2016
MINIMUM TEMPERATURE (F) 56 38 1893
SUNRISE AND SUNSET
SEPTEMBER 26 2025.....SUNRISE 6:59 AM PDT SUNSET 6:58 PM PDT
SEPTEMBER 27 2025.....SUNRISE 7:00 AM PDT SUNSET 6:56 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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