Grangeville Weather in December
Average highs run from 40°F on December 1 to 36°F on December 31, and lows from 26°F to 23°F. Normal precipitation for the month is 1.79 in over about 10 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 37°F
- Average low
- 24°F
- Precipitation
- 1.79 in
- Snowfall
- 9.6 in
- Record high
- 66°FDec 5, 1939
- Record low
- -25°FDec 30, 1968
- Chance of a freeze
- 100%
- Daylight
- 8 h 55 min to 8 h 43 min
- Cloud cover
- 73%
- Humidity
- 88%
- Dew point
- 23°F
- Wind
- 6.3 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Dec 1 | 40°F | 26°F | 59°F 1999 | -3°F 1985 | 36% | 11% |
| Dec 2 | 39°F | 25°F | 59°F 1999 | 3°F 1985 | 36% | 11% |
| Dec 3 | 39°F | 25°F | 60°F 1965 | 1°F 1984 | 35% | 12% |
| Dec 4 | 39°F | 25°F | 57°F 1987 | -10°F 1972 | 35% | 12% |
| Dec 5 | 39°F | 25°F | 66°F 1939 | -10°F 1972 | 35% | 12% |
| Dec 6 | 38°F | 25°F | 61°F 1987 | -1°F 1972 | 35% | 12% |
| Dec 7 | 38°F | 24°F | 57°F 1939 | -8°F 2013 | 34% | 12% |
| Dec 8 | 38°F | 24°F | 58°F 1975 | -17°F 1972 | 34% | 12% |
| Dec 9 | 38°F | 24°F | 59°F 1981 | -18°F 1972 | 34% | 12% |
| Dec 10 | 37°F | 24°F | 64°F 1939 | -15°F 1972 | 34% | 13% |
| Dec 11 | 37°F | 24°F | 59°F 1993 | -11°F 1961 | 33% | 13% |
| Dec 12 | 37°F | 24°F | 56°F 2025 | -3°F 1901 | 33% | 13% |
| Dec 13 | 37°F | 24°F | 57°F 2025 | -5°F 1901 | 33% | 13% |
| Dec 14 | 37°F | 23°F | 54°F 2002 | -1°F 1967 | 33% | 13% |
| Dec 15 | 37°F | 23°F | 57°F 2002 | -4°F 2008 | 32% | 13% |
| Dec 16 | 37°F | 23°F | 59°F 1973 | -22°F 1964 | 32% | 13% |
| Dec 17 | 36°F | 23°F | 59°F 1979 | -23°F 1964 | 32% | 13% |
| Dec 18 | 36°F | 23°F | 59°F 1979 | -4°F 1964 | 32% | 13% |
| Dec 19 | 36°F | 23°F | 55°F 1966 | -5°F 1990 | 31% | 13% |
| Dec 20 | 36°F | 23°F | 53°F 1994 | -12°F 1990 | 31% | 13% |
| Dec 21 | 36°F | 23°F | 55°F 1969 | -15°F 1990 | 31% | 13% |
| Dec 22 | 36°F | 23°F | 55°F 1955 | -20°F 1983 | 31% | 12% |
| Dec 23 | 36°F | 23°F | 53°F 1901 | -22°F 1983 | 31% | 12% |
| Dec 24 | 36°F | 23°F | 55°F 1902 | -16°F 1983 | 31% | 12% |
| Dec 25 | 36°F | 23°F | 58°F 1902 | 0°F 1948 | 31% | 12% |
| Dec 26 | 36°F | 23°F | 60°F 1980 | -1°F 1988 | 31% | 12% |
| Dec 27 | 36°F | 23°F | 60°F 1980 | 0°F 1988 | 31% | 12% |
| Dec 28 | 36°F | 23°F | 57°F 1980 | -3°F 1894 | 31% | 12% |
| Dec 29 | 36°F | 23°F | 57°F 1965 | -18°F 1990 | 31% | 12% |
| Dec 30 | 36°F | 23°F | 55°F 1962 | -25°F 1968 | 31% | 12% |
| Dec 31 | 36°F | 23°F | 57°F 1996 | -19°F 1968 | 31% | 12% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:06 AM, sunset 4:01 PM
- December 31
- sunrise 7:26 AM, sunset 4:09 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00103771 (Grangeville), public domain. Records: NOAA GHCN-Daily, station USC00103771, 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.