866
CDUS46 KMTR 190829
CLICCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1229 AM PST FRI DEC 19 2025
...............................
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 18 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 61 2:05 PM 65 2013 58 3 54
2018
MINIMUM 52 2:24 AM 28 2006 40 12 40
AVERAGE 57 49 8 47
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.02 1.13
SINCE OCT 1 1.74 1.91
SINCE JAN 1 3.81 11.24
DEGREE DAYS
HEATING
YESTERDAY 8 18
MONTH TO DATE 324 238
SINCE DEC 1 324 238
SINCE JUL 1 621 577
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 1035 1454
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 1.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 72 2:00 PM
AVERAGE 86
......................................................
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 74 1999
MINIMUM TEMPERATURE (F) 40 27 2006
SUNRISE AND SUNSET
DECEMBER 19 2025......SUNRISE 7:20 AM PST SUNSET 4:51 PM PST
DECEMBER 20 2025......SUNRISE 7:20 AM PST SUNSET 4:52 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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