516
CDUS46 KMTR 120827
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST FRI DEC 12 2025
...............................
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 11 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 55 4:11 PM 67 1999 58 -3 59
2010
MINIMUM 36 9:47 PM 24 2013 37 -1 29
AVERAGE 46 47 -1 44
PRECIPITATION (IN)
YESTERDAY 0.00 4.66 2014 0.22 -0.22 0.40
MONTH TO DATE 0.00 2.23 -2.23 0.41
SINCE OCT 1 6.84 7.46 -0.62 16.32
SINCE JAN 1 22.74 29.25 -6.51 41.81
DEGREE DAYS
HEATING
YESTERDAY 19 21
MONTH TO DATE 201 149
SINCE DEC 1 201 149
SINCE JUL 1 646 657
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 401 705
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 1.7
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
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 72 4:00 PM
AVERAGE 86
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THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 67 2018
MINIMUM TEMPERATURE (F) 37 24 2013
SUNRISE AND SUNSET
DECEMBER 12 2025......SUNRISE 7:20 AM PST SUNSET 4:51 PM PST
DECEMBER 13 2025......SUNRISE 7:20 AM PST SUNSET 4:51 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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