Climatological Report (Daily)
Issued by NWS
Issued by NWS
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882
CDUS46 KMTR 160038
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
438 PM PST MON DEC 15 2025
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 15 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 51 3:59 PM 78 2013 57 -6 49
MINIMUM 40 9:39 AM 28 1999 37 3 36
AVERAGE 46 47 -1 43
PRECIPITATION (IN)
TODAY 0.00 2.57 2016 0.23 -0.23 0.00
MONTH TO DATE 0.00 3.14 -3.14 4.30
SINCE OCT 1 6.84 8.37 -1.53 20.21
SINCE JAN 1 22.74 30.16 -7.42 45.70
DEGREE DAYS
HEATING
TODAY 19 22
MONTH TO DATE 285 216
SINCE DEC 1 285 216
SINCE JUL 1 730 724
COOLING
TODAY 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 7 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 1.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 79 3:00 PM
AVERAGE 90
..........................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 70 2011
MINIMUM TEMPERATURE (F) 37 26 2022
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 7:22 AM PST SUNSET 4:52 PM PST
DECEMBER 16 2025......SUNRISE 7:22 AM PST SUNSET 4:52 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$