143
CDUS46 KMTR 210828
CLICCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1228 AM PST SUN DEC 21 2025
...............................
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 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 60 4:50 AM 69 1999 58 2 50
MINIMUM 53 10:02 AM 28 2012 40 13 45
AVERAGE 57 49 8 48
PRECIPITATION (IN)
YESTERDAY T 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 17
MONTH TO DATE 339 275
SINCE DEC 1 339 275
SINCE JUL 1 636 614
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 1035 1454
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 2.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 6:00 AM
LOWEST 90 4:00 PM
AVERAGE 95
......................................................
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 69 1999
2014
MINIMUM TEMPERATURE (F) 40 29 2011
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 7:21 AM PST SUNSET 4:52 PM PST
DECEMBER 22 2025......SUNRISE 7:21 AM PST SUNSET 4:53 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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