Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 230845
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
145 AM PDT TUE SEP 23 2025
...................................
...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 22 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 89 3:02 PM 101 1939 80 9 84
MINIMUM 60 5:58 AM 36 1895 57 3 57
AVERAGE 75 68 7 71
PRECIPITATION (IN)
YESTERDAY 0.00 1.15 1904 0.01 -0.01 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 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 4 6 6
MONTH TO DATE 146 101 45 142
SINCE SEP 1 146 101 45 142
SINCE JAN 1 495 544 -49 952
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (320)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 3.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 6:00 AM
LOWEST 30 2:00 PM
AVERAGE 58
..........................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 100 1939
MINIMUM TEMPERATURE (F) 57 35 1903
SUNRISE AND SUNSET
SEPTEMBER 23 2025.....SUNRISE 6:57 AM PDT SUNSET 7:02 PM PDT
SEPTEMBER 24 2025.....SUNRISE 6:58 AM PDT SUNSET 7:01 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$