540
CDUS46 KMTR 150835
CLICCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1235 AM PST MON DEC 15 2025
...............................
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 14 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 42 9:33 PM 67 2017 58 -16 59
MINIMUM 39 8:55 AM 30 2013 41 -2 45
AVERAGE 41 49 -8 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.77
MONTH TO DATE T 0.95
SINCE OCT 1 1.72 1.73
SINCE JAN 1 3.79 11.06
DEGREE DAYS
HEATING
YESTERDAY 24 13
MONTH TO DATE 272 168
SINCE DEC 1 272 168
SINCE JUL 1 569 507
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 1035 1454
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NE (40)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 1.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 96 7:00 PM
AVERAGE 98
......................................................
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 64 2016
MINIMUM TEMPERATURE (F) 41 29 2013
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 7:17 AM PST SUNSET 4:50 PM PST
DECEMBER 16 2025......SUNRISE 7:18 AM PST SUNSET 4:50 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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