Climatological Report (Monthly) Issued by NWS
000
CXUS56 KMTR 010845
CLMAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
145 AM PDT MON MAY 01 2023
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...THE NAPA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 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 91 MM
LOW 30 04/12/2022
HIGHEST 85 04/27 88 04/07
LOWEST 33 04/04 30 04/12
AVG. MAXIMUM 68.5 69.7
AVG. MINIMUM 43.8 40.5
MEAN 56.2 55.1
DAYS MAX >= 90 0 0
DAYS MAX <= 32 0 0
DAYS MIN <= 32 0 2
DAYS MIN <= 0 0 0
PRECIPITATION (INCHES)
TOTALS 0.14 1.26 -1.12 1.19
DAILY AVG. 0.00 0.04
DAYS >= .01 2 7
DAYS >= .10 0 4
DAYS >= .50 0 0
DAYS >= 1.00 0 0
GREATEST
24 HR. TOTAL 0.09 04/17 TO 04/17 0.46 04/16 TO 04/16
DEGREE DAYS
HEATING TOTAL 256 291
SINCE 7/1 2714 MM
COOLING TOTAL 3 2
SINCE 1/1 3 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.6
RESULTANT WIND SPEED/DIRECTION 6/250
HIGHEST WIND SPEED/DIRECTION 29/270 DATE 04/03
HIGHEST GUST SPEED/DIRECTION 36/270 DATE 04/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.17
NUMBER OF DAYS FAIR 22
NUMBER OF DAYS PC 6
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 1
LIGHT RAIN 3 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 6 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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