753
CXUS56 KMTR 010842
CLMCCR

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
142 AM PDT SAT NOV 01 2025

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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2025...

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

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            103   MM
 LOW              39   10/31/2019
HIGHEST           91   10/07                         103  10/01
                                                          10/02
                                                          10/06
LOWEST            47   10/28                          46  10/29
AVG. MAXIMUM    74.7                                83.7
AVG. MINIMUM    53.2                                55.9
MEAN            63.9                                69.8
DAYS MAX >= 90     1                                   8
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          0.48               0.73   -0.25        T
DAILY AVG.      0.02                                   T
DAYS >= .01        3                                   0
DAYS >= .10        1                                   0
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.40   10/13 TO 10/13                  T  10/31 TO 10/31
                                                          10/30 TO 10/30
                                                          10/31 TO 10/31


DEGREE DAYS
HEATING TOTAL     60                                  29
 SINCE 7/1        60                                  MM
COOLING TOTAL     35                                 183
 SINCE 1/1      1035                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.2
RESULTANT WIND SPEED/DIRECTION   2/230
HIGHEST WIND SPEED/DIRECTION    26/190    DATE  10/26
HIGHEST GUST SPEED/DIRECTION    39/210    DATE  10/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.25
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$