762
CDUS46 KMTR 220838
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1238 AM PST MON DEC 22 2025
...............................
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 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 65 MM 72 1999 59 6 65
MINIMUM 61 MM 25 1968 41 20 51
AVERAGE 63 50 13 58
PRECIPITATION (IN)
YESTERDAY 0.00 2.01 1894 0.08 -0.08 T
MONTH TO DATE 0.01 1.52 -1.51 1.48
SINCE OCT 1 4.09 3.38 0.71 2.80
SINCE JAN 1 10.20 12.71 -2.51 16.43
SNOWFALL (IN)
YESTERDAY MM 0.0 1947
MONTH TO DATE T
SINCE DEC 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 2 15 -13 7
MONTH TO DATE 261 299 -38 201
SINCE DEC 1 261 299 -38 201
SINCE JUL 1 521 664 -143 427
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
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WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 12.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 3:00 AM
LOWEST 69 6:00 PM
AVERAGE 78
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THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 69 2024
MINIMUM TEMPERATURE (F) 41 19 1990
SUNRISE AND SUNSET
DECEMBER 22 2025......SUNRISE 7:19 AM PST SUNSET 4:54 PM PST
DECEMBER 23 2025......SUNRISE 7:19 AM PST SUNSET 4:55 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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