Climatological Report (Daily)
Issued by NWS

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469
CDUS46 KMTR 110825
CLICCR

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT MON AUG 11 2025

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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR AUGUST 10 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   2:53 PM 101    2009  88      6       95
  MINIMUM         59   5:57 AM  53    2010  59      0       58
  AVERAGE         77                        74      3       77

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                                        12
  MONTH TO DATE  102                                       121
  SINCE JUN 1    431                                       785
  SINCE JAN 1    542                                       868
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  NW (310)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NW (300)
  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    87           5:00 AM
 LOWEST     18           5:00 PM
 AVERAGE    53

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


THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88       100      2004
 MINIMUM TEMPERATURE (F)   59        54      2012


SUNRISE AND SUNSET
AUGUST 11 2025........SUNRISE   6:20 AM PDT   SUNSET   8:06 PM PDT
AUGUST 12 2025........SUNRISE   6:21 AM PDT   SUNSET   8:05 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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