041
CDUS46 KMTR 310835
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1235 AM PST WED DEC 31 2025
...............................
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 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 48 4:38 PM 65 2018 57 -9 60
MINIMUM 32 4:28 AM 26 2013 37 -5 36
AVERAGE 40 47 -7 48
PRECIPITATION (IN)
YESTERDAY 0.00 3.42 2005 0.22 -0.22 0.00
MONTH TO DATE 5.47 6.54 -1.07 9.68
SINCE OCT 1 12.31 11.77 0.54 25.59
SINCE JAN 1 28.21 33.56 -5.35 51.08
DEGREE DAYS
HEATING
YESTERDAY 25 17
MONTH TO DATE 485 420
SINCE DEC 1 485 420
SINCE JUL 1 930 928
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 401 705
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 1.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 90 5:00 PM
AVERAGE 95
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THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 64 2014
2019
MINIMUM TEMPERATURE (F) 37 28 2012
2016
SUNRISE AND SUNSET
DECEMBER 31 2025......SUNRISE 7:29 AM PST SUNSET 5:01 PM PST
JANUARY 1 2026.......SUNRISE 7:29 AM PST SUNSET 5:01 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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