Climatological Report (Daily)
Issued by NWS

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339
CDUS46 KMTR 240834
CLICCR

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
134 AM PDT SUN AUG 24 2025

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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR AUGUST 23 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         94   2:22 PM  99    2010  88      6       75
  MINIMUM         59   5:29 AM  54    2006  60     -1       59
                                      2014
  AVERAGE         77                        74      3       67

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    0.00                                       T
  SINCE OCT 1      4.30                                     12.46
  SINCE JAN 1      2.04                                      9.33

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE JUN 1      1                                         3
  SINCE JUL 1      0                                         3

 COOLING
  YESTERDAY       12                                         2
  MONTH TO DATE  226                                       227
  SINCE JUN 1    555                                       891
  SINCE JAN 1    666                                       974
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     8.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           2:00 AM
 LOWEST     16           3:00 PM
 AVERAGE    51

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


THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88       106      2010
 MINIMUM TEMPERATURE (F)   60        51      2009


SUNRISE AND SUNSET
AUGUST 24 2025........SUNRISE   6:32 AM PDT   SUNSET   7:49 PM PDT
AUGUST 25 2025........SUNRISE   6:32 AM PDT   SUNSET   7:47 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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