Climatological Report (Monthly)
Issued by NWS
Issued by NWS
445
CXUS56 KMTR 011102
CLMSTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
402 AM PDT MON SEP 01 2025
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 107 MM
LOW 42 08/30/2010
HIGHEST 100 08/21 96 08/14
08/15
08/27
LOWEST 46 08/19 48 08/13
08/19
AVG. MAXIMUM 87.9 84.1 3.8 86.8
AVG. MINIMUM 51.8 51.9 -0.1 51.6
MEAN 69.9 68.0 1.9 69.2
DAYS MAX >= 90 13 7.3 5.7 12
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 0.09 2020
MINIMUM 0.00 2012
TOTALS T 0.08
DAILY AVG. T 0.00
DAYS >= .01 0 1
DAYS >= .10 0 0
DAYS >= .50 0 0
DAYS >= 1.00 0 0
GREATEST
24 HR. TOTAL T 08/01 TO 08/01 0.08 08/24 TO 08/24
08/27 TO 08/27
DEGREE DAYS
HEATING TOTAL 0 4
SINCE 7/1 17 MM
COOLING TOTAL 159 145
SINCE 1/1 279 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.2
RESULTANT WIND SPEED/DIRECTION 4/160
HIGHEST WIND SPEED/DIRECTION 21/340 DATE 08/03
HIGHEST GUST SPEED/DIRECTION 29/340 DATE 08/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.18
NUMBER OF DAYS FAIR 23
NUMBER OF DAYS PC 8
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 0 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 15 FOG W/VIS <= 1/4 MILE 3
HAZE 10
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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