Palermo climate

Palermo Weather in December

NOAA 1991-2020 normals for Oroville Muni AP, 9.2 km from Palermo

Average highs run from 57°F on December 1 to 54°F on December 31, and lows from 41°F to 39°F. Normal precipitation for the month is 4.63 in over about 12 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 Palermo, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
55°F
Average low
40°F
Precipitation
4.63 in
Record high
84°FDec 5, 2019
Record low
22°FDec 9, 2009
Chance of a freeze
71%
Daylight
9 h 36 min to 9 h 26 min
Cloud cover
61%
Humidity
74%
Dew point
33°F
Wind
6.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 157°F41°F68°F 202131°F 200437%0%
Dec 257°F41°F70°F 201133°F 200637%0%
Dec 357°F41°F67°F 202333°F 200937%0%
Dec 457°F41°F71°F 201930°F 201338%0%
Dec 556°F40°F84°F 201926°F 201338%0%
Dec 656°F40°F67°F 202027°F 201338%0%
Dec 756°F40°F79°F 202028°F 201338%0%
Dec 856°F40°F68°F 202424°F 200938%0%
Dec 956°F40°F65°F 201222°F 200938%0%
Dec 1056°F40°F70°F 201926°F 200938%0%
Dec 1155°F40°F72°F 201931°F 201138%0%
Dec 1255°F40°F69°F 202331°F 201338%0%
Dec 1355°F40°F66°F 201330°F 201139%0%
Dec 1455°F40°F63°F 200630°F 201139%0%
Dec 1555°F39°F69°F 199831°F 202239%0%
Dec 1655°F39°F74°F 199832°F 199939%0%
Dec 1755°F39°F67°F 201728°F 200839%0%
Dec 1855°F39°F62°F 201827°F 200839%0%
Dec 1955°F39°F70°F 199928°F 201239%0%
Dec 2055°F39°F73°F 199928°F 199838%0%
Dec 2155°F39°F75°F 199924°F 199838%0%
Dec 2255°F39°F65°F 199923°F 199838%0%
Dec 2355°F39°F65°F 200525°F 199838%0%
Dec 2454°F39°F70°F 201324°F 199838%0%
Dec 2554°F39°F61°F 199929°F 199838%0%
Dec 2654°F39°F63°F 201328°F 201138%0%
Dec 2754°F39°F65°F 199929°F 200738%0%
Dec 2854°F39°F69°F 201330°F 200038%0%
Dec 2954°F39°F67°F 202432°F 199838%0%
Dec 3054°F39°F65°F 201929°F 201038%0%
Dec 3154°F39°F62°F 200529°F 201538%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Palermo, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PST).

December 1
sunrise 7:07 AM, sunset 4:43 PM
December 31
sunrise 7:26 AM, sunset 4:52 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093210 (Oroville Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00093210, 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.