Climatological Report (Daily)
Issued by NWS

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435
CDUS46 KMTR 150838
CLICCR

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT FRI AUG 15 2025

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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR AUGUST 14 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         87   4:24 PM 106    2020  88     -1       92
  MINIMUM         60   6:06 AM  54    2007  60      0       61
                                      2010
  AVERAGE         74                        74      0       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        9                                        12
  MONTH TO DATE  134                                       159
  SINCE JUN 1    463                                       823
  SINCE JAN 1    574                                       906
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED    12.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          12:00 AM
 LOWEST     31           5:00 PM
 AVERAGE    58

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


THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88       106      2020
 MINIMUM TEMPERATURE (F)   60        55      2016


SUNRISE AND SUNSET
AUGUST 15 2025........SUNRISE   6:24 AM PDT   SUNSET   8:01 PM PDT
AUGUST 16 2025........SUNRISE   6:25 AM PDT   SUNSET   7:59 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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