Climatological Report (Daily)
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164
CDUS46 KMTR 190039
CLISJC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
539 PM PDT FRI SEP 18 2026

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

...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         77   3:36 PM 100    1913  81     -4       84
  MINIMUM         58   5:04 AM  42    1907  57      1       64
                                      1908
                                      1911
  AVERAGE         68                        69     -1       74

PRECIPITATION (IN)
  TODAY            0.00          2.00 1959   0.00   0.00     0.00
  MONTH TO DATE    0.06                      0.02   0.04     0.41
  SINCE OCT 1     12.79                     13.43  -0.64     9.72
  SINCE JAN 1      7.43                      9.28  -1.85     6.08

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      2                         6     -4        1

 COOLING
  TODAY            3                         4     -1        9
  MONTH TO DATE   96                        85     11      117
  SINCE SEP 1     96                        85     11      117
  SINCE JAN 1    620                       528     92      466
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  NW (320)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     5.8


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    83          12:00 AM
 LOWEST     48           3:00 PM
 AVERAGE    66

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


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 2026.....SUNRISE   6:52 AM PDT   SUNSET   7:10 PM PDT
SEPTEMBER 19 2026.....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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