Climatological Report (Daily)
Issued by NWS

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096
CDUS46 KMTR 310835
CLICCR

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1235 AM PST WED DEC 31 2025

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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1999 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         47  11:19 PM  64    2016  57    -10       61
                                      2022
  MINIMUM         39   6:05 AM  30    2006  40     -1       40
  AVERAGE         43                        49     -6       51

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    1.42                                      1.48
  SINCE OCT 1      3.14                                      2.26
  SINCE JAN 1      5.21                                     11.59

DEGREE DAYS
 HEATING
  YESTERDAY       22                                        14
  MONTH TO DATE  443                                       383
  SINCE DEC 1    443                                       383
  SINCE JUL 1    740                                       722

 COOLING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE DEC 1      0                                         0
  SINCE JAN 1   1035                                      1454
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  NE (50)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     5.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          12:00 AM
 LOWEST     80          11:00 PM
 AVERAGE    90

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


THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        65      2019
 MINIMUM TEMPERATURE (F)   40        29      2015


SUNRISE AND SUNSET
DECEMBER 31 2025......SUNRISE   7:24 AM PST   SUNSET   4:59 PM PST
JANUARY  1 2026.......SUNRISE   7:24 AM PST   SUNSET   5:00 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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