822
CDUS46 KMTR 190037
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
537 PM PDT THU SEP 18 2025
...............................
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 84 1:05 PM 100 1913 81 3 78
MINIMUM 66 8:06 AM 42 1907 57 9 62
1908
1911
AVERAGE 75 69 6 70
PRECIPITATION (IN)
TODAY 0.00 2.00 1959 0.00 0.00 0.00
MONTH TO DATE 0.41 0.02 0.39 0.00
SINCE OCT 1 9.72 13.43 -3.71 17.06
SINCE JAN 1 6.08 9.28 -3.20 13.63
SNOWFALL (IN)
TODAY MM 0.0 1947
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
TODAY 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
TODAY 10 4 6 5
MONTH TO DATE 118 85 33 122
SINCE SEP 1 118 85 33 122
SINCE JAN 1 467 528 -61 932
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 5:00 AM
LOWEST 40 1:00 PM
AVERAGE 57
......................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 98 2000
MINIMUM TEMPERATURE (F) 57 39 1893
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 6:53 AM PDT SUNSET 7:10 PM PDT
SEPTEMBER 19 2025.....SUNRISE 6:53 AM PDT SUNSET 7:09 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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