Climatological Report (Monthly) Issued by NWS
000
CXUS56 KMTR 010828
CLMAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1228 AM PST THU FEB 01 2024
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...THE NAPA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 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 80 01/12/2009
LOW 18 01/15/2007
HIGHEST 71 01/28 68 01/23
01/29
LOWEST 27 01/07 29 01/31
AVG. MAXIMUM 59.4 58.9
AVG. MINIMUM 41.5 41.6
MEAN 50.4 50.3
DAYS MAX >= 90 0 0
DAYS MAX <= 32 0 0
DAYS MIN <= 32 5 2
DAYS MIN <= 0 0 0
PRECIPITATION (INCHES)
TOTALS 4.72 4.17 0.55 8.78
DAILY AVG. 0.15 0.28
DAYS >= .01 14 15
DAYS >= .10 10 13
DAYS >= .50 3 7
DAYS >= 1.00 1 3
GREATEST
24 HR. TOTAL 1.53 01/31 TO 01/31 1.80 01/08 TO 01/09
DEGREE DAYS
HEATING TOTAL 440 430
SINCE 7/1 1257 MM
COOLING TOTAL 0 0
SINCE 1/1 0 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.4
RESULTANT WIND SPEED/DIRECTION 1/130
HIGHEST WIND SPEED/DIRECTION 25/260 DATE 01/10
HIGHEST GUST SPEED/DIRECTION 37/270 DATE 01/10
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.46
NUMBER OF DAYS FAIR 14
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 6
AVERAGE RH (PERCENT) 81
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 8
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 29 FOG W/VIS <= 1/4 MILE 9
HAZE 8
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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