Climatological Report (Monthly)
Issued by NWS
Issued by NWS
156
CXUS56 KMTR 011832
CLMAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1132 AM PDT TUE JUL 01 2025
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...THE NAPA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JUNE 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 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 110 MM
LOW 39 06/10/2018
06/06/2012
06/01/1954
HIGHEST 81 06/18 97 06/04
LOWEST 43 06/12 46 06/15
06/17
06/18
AVG. MAXIMUM 74.9 79.0
AVG. MINIMUM 50.6 52.0
MEAN 62.8 65.5
DAYS MAX >= 90 0 3
DAYS MAX <= 32 0 0
DAYS MIN <= 32 0 0
DAYS MIN <= 0 0 0
PRECIPITATION (INCHES)
TOTALS 0.00R 0.22 -0.22 T
DAILY AVG. 0.00 T
DAYS >= .01 0 0
DAYS >= .10 0 0
DAYS >= .50 0 0
DAYS >= 1.00 0 0
GREATEST
24 HR. TOTAL 0.00 T 06/26 TO 06/26
DEGREE DAYS
HEATING TOTAL 64 37
SINCE 7/1 2715 MM
COOLING TOTAL 8 56
SINCE 1/1 25 MM
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WIND (MPH)
AVERAGE WIND SPEED 10.5
RESULTANT WIND SPEED/DIRECTION 9/220
HIGHEST WIND SPEED/DIRECTION 29/270 DATE 06/20
HIGHEST GUST SPEED/DIRECTION 37/260 DATE 06/20
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.22
NUMBER OF DAYS FAIR 21
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 5 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 4 FOG W/VIS <= 1/4 MILE 0
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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