Climatological Report (Monthly)
Issued by NWS
Issued by NWS
171
CXUS56 KMTR 010836
CLMCCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
136 AM PDT SUN JUN 01 2025
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...THE CONCORD AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1999 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 105 MM
LOW 41 05/11/2022
HIGHEST 101 05/30 94 05/31
LOWEST 49 05/04 44 05/05
AVG. MAXIMUM 80.9 78.9
AVG. MINIMUM 53.5 52.1
MEAN 67.2 65.5
DAYS MAX >= 90 5 3
DAYS MAX <= 32 0 0
DAYS MIN <= 32 0 0
DAYS MIN <= 0 0 0
PRECIPITATION (INCHES)
TOTALS 0.12 0.51 -0.39 0.86
DAILY AVG. 0.00 0.03
DAYS >= .01 2 1
DAYS >= .10 1 1
DAYS >= .50 0 1
DAYS >= 1.00 0 0
GREATEST
24 HR. TOTAL 0.11 05/12 TO 05/12 0.86 05/04 TO 05/04
DEGREE DAYS
HEATING TOTAL 26 51
SINCE 7/1 1997 MM
COOLING TOTAL 100 72
SINCE 1/1 111 MM
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WIND (MPH)
AVERAGE WIND SPEED 10.0
RESULTANT WIND SPEED/DIRECTION 7/220
HIGHEST WIND SPEED/DIRECTION 26/180 DATE 05/16
26/180 05/17
HIGHEST GUST SPEED/DIRECTION 37/190 DATE 05/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.07
NUMBER OF DAYS FAIR 29
NUMBER OF DAYS PC 2
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 59
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 1
LIGHT RAIN 2 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 1 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$