Climatological Report (Monthly)
Issued by NWS
Issued by NWS
756
CXUS56 KMTR 010839
CLMCCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1239 AM PST WED JAN 01 2025
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...THE CONCORD AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1999 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 75 MM
LOW 24 12/10/2013
HIGHEST 69 12/04 67 12/04
12/08
12/22
LOWEST 35 12/31 33 12/10
AVG. MAXIMUM 59.8 62.1
AVG. MINIMUM 43.7 43.6
MEAN 51.8 52.9
DAYS MAX >= 90 0 0
DAYS MAX <= 32 0 0
DAYS MIN <= 32 0 0
DAYS MIN <= 0 0 0
PRECIPITATION (INCHES)
TOTALS 1.48 3.18 -1.70 2.40
DAILY AVG. 0.05 0.08
DAYS >= .01 6 10
DAYS >= .10 4 8
DAYS >= .50 1 2
DAYS >= 1.00 0 0
GREATEST
24 HR. TOTAL 0.77 12/14 TO 12/14 0.71 12/17 TO 12/18
12/18 TO 12/19
DEGREE DAYS
HEATING TOTAL 401 369
SINCE 7/1 740 MM
COOLING TOTAL 0 0
SINCE 1/1 1454 MM
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WIND (MPH)
AVERAGE WIND SPEED 4.8
RESULTANT WIND SPEED/DIRECTION 1/170
HIGHEST WIND SPEED/DIRECTION 35/250 DATE 12/14
HIGHEST GUST SPEED/DIRECTION 51/250 DATE 12/14
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.46
NUMBER OF DAYS FAIR 14
NUMBER OF DAYS PC 6
NUMBER OF DAYS CLOUDY 11
AVERAGE RH (PERCENT) 80
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 5
LIGHT RAIN 12 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 22 FOG W/VIS <= 1/4 MILE 9
HAZE 11
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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