Greenville climate

Greenville Weather in December

NOAA 1991-2020 normals for Canyon Dam, 12.2 km from Greenville

Average highs run from 44°F on December 1 to 40°F on December 31, and lows from 27°F to 25°F. Normal precipitation for the month is 6.84 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 Greenville, in °F, with the record for each date.-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
41°F
Average low
25°F
Precipitation
6.84 in
Snowfall
25.6 in
Record high
62°FDec 1, 1959
Record low
-16°FDec 9, 1972
Chance of a freeze
100%
Daylight
9 h 32 min to 9 h 22 min
Cloud cover
62%
Humidity
80%
Dew point
28°F
Wind
5.8 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 144°F27°F62°F 195913°F 196534%14%
Dec 243°F27°F62°F 19585°F 202234%14%
Dec 343°F26°F62°F 19794°F 202234%14%
Dec 443°F26°F60°F 19588°F 196835%15%
Dec 543°F26°F60°F 19790°F 197235%15%
Dec 642°F26°F60°F 19581°F 199835%15%
Dec 742°F26°F60°F 19622°F 197836%16%
Dec 842°F26°F61°F 1975-9°F 197236%16%
Dec 942°F26°F58°F 1957-16°F 197236%16%
Dec 1041°F25°F60°F 1958-6°F 197236%16%
Dec 1141°F25°F60°F 1958-13°F 197236%17%
Dec 1241°F25°F59°F 19883°F 198536%17%
Dec 1341°F25°F58°F 1988-6°F 197237%17%
Dec 1441°F25°F54°F 1983-8°F 197237%17%
Dec 1541°F25°F58°F 19763°F 197137%17%
Dec 1640°F25°F60°F 19582°F 197137%18%
Dec 1740°F25°F58°F 19831°F 200837%18%
Dec 1840°F25°F57°F 19791°F 199237%18%
Dec 1940°F25°F54°F 1960-1°F 197837%18%
Dec 2040°F25°F54°F 1999-8°F 199037%18%
Dec 2140°F25°F58°F 1960-16°F 199037%18%
Dec 2240°F25°F55°F 1960-15°F 199037%18%
Dec 2340°F25°F56°F 1985-8°F 199037%18%
Dec 2440°F24°F56°F 1964-9°F 199037%18%
Dec 2540°F24°F56°F 1972-3°F 197037%18%
Dec 2640°F24°F57°F 1976-6°F 198837%18%
Dec 2740°F24°F56°F 1967-2°F 198837%19%
Dec 2840°F25°F61°F 19753°F 197137%19%
Dec 2940°F25°F55°F 1975-3°F 197837%19%
Dec 3040°F25°F58°F 1960-4°F 197837%19%
Dec 3140°F25°F62°F 1960-4°F 197837%19%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Greenville, 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 4:39 PM
December 31
sunrise 7:26 AM, sunset 4:48 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00041497 (Canyon Dam), public domain. Records: NOAA GHCN-Daily, station USC00041700, 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.