815
CXUS56 KMTR 010834
CLMSJC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1234 AM PST THU JAN 01 2026

...................................

...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             79   12/12/1958
 LOW              19   12/23/1990
                       12/22/1990
HIGHEST           71   12/17                          74  12/23
LOWEST            35   12/29                          38  12/11
                       12/30
AVG. MAXIMUM    60.5               59.5     1.0     65.5
AVG. MINIMUM    45.0               41.7     3.3     46.6
MEAN            52.7                                56.1
DAYS MAX >= 90     0                                   0
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          1.28               2.29   -1.01     1.54
DAILY AVG.      0.04               0.07   -0.03     0.07
DAYS >= .01        6                                   9
DAYS >= .10        3                                   3
DAYS >= .50        1                                   1
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.69   12/24 TO 12/25               0.52  12/13 TO 12/14


DEGREE DAYS
HEATING TOTAL    373                446     -73      272
 SINCE 7/1       633                814    -181       MM
COOLING TOTAL      0                  0       0        2
 SINCE 1/1       602                624     -22       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.8
RESULTANT WIND SPEED/DIRECTION   1/170
HIGHEST WIND SPEED/DIRECTION    28/140    DATE  12/23
                                28/170          12/25
HIGHEST GUST SPEED/DIRECTION    41/180    DATE  12/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.52
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      22     FOG W/VIS <= 1/4 MILE      3
HAZE                     18

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$