Climatological Report (Daily)
Issued by NWS

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066
CDUS46 KMTR 300838
CLICCR

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT WED SEP 30 2026

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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 29 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1999 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         94   4:26 PM 100    2010  83     11       75
  MINIMUM         54   7:14 AM  45    2007  56     -2       63
  AVERAGE         74                        69      5       69

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    0.13                                      0.03
  SINCE OCT 1      6.72                                      4.33
  SINCE JAN 1      3.58                                      2.07

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE SEP 1      0                                         0
  SINCE JUL 1      1                                         0

 COOLING
  YESTERDAY        9                                         4
  MONTH TO DATE  172                                       243
  SINCE SEP 1    172                                       243
  SINCE JAN 1   1021                                       994
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION   W (270)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     3.5


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    84           3:00 AM
 LOWEST     16           3:00 PM
 AVERAGE    50

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


THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        97      2012
 MINIMUM TEMPERATURE (F)   56        46      2007


SUNRISE AND SUNSET
SEPTEMBER 30 2026.....SUNRISE   7:03 AM PDT   SUNSET   6:52 PM PDT
OCTOBER  1 2026.......SUNRISE   7:04 AM PDT   SUNSET   6:51 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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