Fulton climate

Fulton Weather in December

NOAA 1991-2020 normals for Santa Rosa, 6.7 km from Fulton

Average highs run from 61°F on December 1 to 58°F on December 31, and lows from 39°F to 38°F. Normal precipitation for the month is 6.47 in over about 13 wet days.

December day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Fulton, in °F, with the record for each date.020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
59°F
Average low
38°F
Precipitation
6.47 in
Record high
78°FDec 19, 1999
Record low
19°FDec 9, 2013
Chance of a freeze
85%
Daylight
9 h 40 min to 9 h 32 min
Cloud cover
58%
Humidity
83%
Dew point
43°F
Wind
8.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Dec 161°F39°F73°F 201123°F 200738%
Dec 261°F39°F75°F 201126°F 200438%
Dec 361°F39°F69°F 202526°F 200439%
Dec 460°F39°F69°F 202026°F 200439%
Dec 560°F39°F70°F 202424°F 201339%
Dec 660°F39°F71°F 202422°F 201340%
Dec 760°F39°F77°F 202025°F 200940%
Dec 860°F39°F74°F 202021°F 200940%
Dec 959°F38°F69°F 201219°F 201340%
Dec 1059°F38°F68°F 201222°F 201341%
Dec 1159°F38°F67°F 199924°F 201341%
Dec 1259°F38°F67°F 201824°F 201341%
Dec 1359°F38°F63°F 201325°F 201341%
Dec 1459°F38°F66°F 201725°F 200841%
Dec 1559°F38°F69°F 199828°F 199942%
Dec 1659°F38°F70°F 201126°F 202242%
Dec 1759°F38°F69°F 201724°F 200842%
Dec 1858°F38°F64°F 199824°F 200842%
Dec 1958°F38°F78°F 199924°F 200642%
Dec 2058°F38°F69°F 199926°F 200642%
Dec 2158°F38°F77°F 199921°F 199843%
Dec 2258°F38°F70°F 199921°F 199843%
Dec 2358°F38°F70°F 200421°F 199843%
Dec 2458°F38°F69°F 201323°F 199843%
Dec 2558°F38°F67°F 201326°F 199843%
Dec 2658°F38°F66°F 201326°F 201143%
Dec 2758°F38°F63°F 199927°F 201543%
Dec 2858°F38°F71°F 201323°F 201343%
Dec 2958°F38°F66°F 201327°F 201344%
Dec 3058°F38°F65°F 201826°F 201344%
Dec 3158°F38°F64°F 201428°F 201244%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Fulton, in percent.010203040501102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PST).

December 1
sunrise 7:10 AM, sunset 4:50 PM
December 31
sunrise 7:28 AM, sunset 5:00 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047965 (Santa Rosa), public domain. Records: NOAA GHCN-Daily, station USW00023213, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.