541
CDUS46 KMTR 150835
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1235 AM PST MON DEC 15 2025
...............................
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR DECEMBER 14 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 51 4:17 PM 73 1958 59 -8 59
MINIMUM 40 1:57 AM 25 1919 42 -2 48
AVERAGE 46 50 -4 54
PRECIPITATION (IN)
YESTERDAY 0.00 1.24 2002 0.08 -0.08 0.90
MONTH TO DATE 0.00 1.01 -1.01 1.39
SINCE OCT 1 4.08 2.87 1.21 2.71
SINCE JAN 1 10.19 12.20 -2.01 16.34
SNOWFALL (IN)
YESTERDAY MM 0.0 1947
MONTH TO DATE T
SINCE DEC 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 19 15 4 11
MONTH TO DATE 211 194 17 115
SINCE DEC 1 211 194 17 115
SINCE JUL 1 471 559 -88 341
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 602 624 -22 1215
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (130)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 1.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 2:00 AM
LOWEST 83 3:00 PM
AVERAGE 92
......................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 68 1958
1980
1998
MINIMUM TEMPERATURE (F) 42 25 1932
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 7:15 AM PST SUNSET 4:51 PM PST
DECEMBER 16 2025......SUNRISE 7:16 AM PST SUNSET 4:52 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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