599
CDUS46 KMTR 010831
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1231 AM PST THU JAN 01 2026
...............................
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 31 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 51 11:59 PM 64 2014 57 -6 57
2019
MINIMUM 37 12:54 AM 28 2012 37 0 33
2016
AVERAGE 44 47 -3 45
PRECIPITATION (IN)
YESTERDAY 0.58 1.93 2005 0.22 0.36 0.00
MONTH TO DATE 6.05 6.76 -0.71 9.68
SINCE OCT 1 12.89 11.99 0.90 25.59
SINCE JAN 1 28.79 33.78 -4.99 51.08
DEGREE DAYS
HEATING
YESTERDAY 21 20
MONTH TO DATE 506 440
SINCE DEC 1 506 440
SINCE JUL 1 951 948
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 401 705
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NW (330)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 1.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 89 3:00 PM
AVERAGE 95
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THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 68 2007
MINIMUM TEMPERATURE (F) 37 24 2016
SUNRISE AND SUNSET
JANUARY 1 2026.......SUNRISE 7:29 AM PST SUNSET 5:01 PM PST
JANUARY 2 2026.......SUNRISE 7:29 AM PST SUNSET 5:02 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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