453
CXUS56 KMTR 011630
CLMCCR

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
930 AM PDT MON JUN 01 2026

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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2026...

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

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            105   MM
 LOW              41   05/11/2022
HIGHEST           92   05/21                         101  05/30
LOWEST            50   05/11                          49  05/04
AVG. MAXIMUM    77.6                                80.9
AVG. MINIMUM    54.0                                53.5
MEAN            65.8                                67.2
DAYS MAX >= 90     2                                   5
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          0.08               0.51   -0.43     0.12
DAILY AVG.      0.00                                0.00
DAYS >= .01        1                                   2
DAYS >= .10        0                                   1
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.08   05/28 TO 05/29               0.11  05/12 TO 05/12


DEGREE DAYS
HEATING TOTAL     37                                  26
 SINCE 7/1      1744                                  MM
COOLING TOTAL     68                                 100
 SINCE 1/1       124                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.5
RESULTANT WIND SPEED/DIRECTION   6/240
HIGHEST WIND SPEED/DIRECTION    26/360    DATE  05/17
HIGHEST GUST SPEED/DIRECTION    42/340    DATE  05/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.23
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       2     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$