Climatological Report (Monthly)
Issued by NWS
Issued by NWS
696
CXUS56 KMTR 010853
CLMCCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1253 AM PST MON JAN 01 2024
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...THE CONCORD AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1999 TO 2023
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 67 12/04 64 12/30
12/22
LOWEST 33 12/10 30 12/18
AVG. MAXIMUM 62.1 55.0
AVG. MINIMUM 43.6 39.7
MEAN 52.9 47.4
DAYS MAX >= 90 0 0
DAYS MAX <= 32 0 0
DAYS MIN <= 32 0 4
DAYS MIN <= 0 0 0
PRECIPITATION (INCHES)
TOTALS 2.40 3.18 -0.78 7.97
DAILY AVG. 0.08 0.26
DAYS >= .01 10 12
DAYS >= .10 8 10
DAYS >= .50 2 6
DAYS >= 1.00 0 2
GREATEST
24 HR. TOTAL 0.71 12/17 TO 12/18 3.14 12/30 TO 12/31
12/18 TO 12/19
DEGREE DAYS
HEATING TOTAL 369 541
SINCE 7/1 675 MM
COOLING TOTAL 0 0
SINCE 1/1 1015 MM
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WIND (MPH)
AVERAGE WIND SPEED 4.3
RESULTANT WIND SPEED/DIRECTION 1/150
HIGHEST WIND SPEED/DIRECTION 22/170 DATE 12/29
HIGHEST GUST SPEED/DIRECTION 28/170 DATE 12/29
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.32
NUMBER OF DAYS FAIR 18
NUMBER OF DAYS PC 7
NUMBER OF DAYS CLOUDY 6
AVERAGE RH (PERCENT) 75
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 3 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 3
HAZE 7
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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