321
CDUS46 KMTR 090829
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
129 AM PDT TUE SEP 09 2025
...............................
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 8 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 78 1:38 PM 108 2022 84 -6 95
MINIMUM 51 2:57 AM 43 2002 50 1 53
AVERAGE 65 67 -2 74
PRECIPITATION (IN)
YESTERDAY 0.02R 0.01 2011 0.00 0.02 0.00
MONTH TO DATE 0.02 0.01 0.01 0.00
SINCE OCT 1 41.14 33.66 7.48 37.05
SINCE JAN 1 15.55 21.67 -6.12 25.49
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE SEP 1 0 0
SINCE JUL 1 17 9
COOLING
YESTERDAY 0 9
MONTH TO DATE 29 44
SINCE SEP 1 29 44
SINCE JAN 1 308 548
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 4:00 AM
LOWEST 52 2:00 PM
AVERAGE 76
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THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 102 2015
MINIMUM TEMPERATURE (F) 50 39 2012
SUNRISE AND SUNSET
SEPTEMBER 9 2025.....SUNRISE 6:48 AM PDT SUNSET 7:28 PM PDT
SEPTEMBER 10 2025.....SUNRISE 6:49 AM PDT SUNSET 7:27 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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