Island City Weather in December
Average highs run from 42°F on December 1 to 38°F on December 31, and lows from 27°F to 23°F. Normal precipitation for the month is 1.88 in over about 11 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
- 39°F
- Average low
- 24°F
- Precipitation
- 1.88 in
- Snowfall
- 3.0 in
- Record high
- 62°FDec 2, 2021
- Record low
- -18°FDec 23, 1983
- Chance of a freeze
- 100%
- Daylight
- 8 h 59 min to 8 h 47 min
- Cloud cover
- 72%
- Humidity
- 87%
- Dew point
- 24°F
- Wind
- 8.9 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 | 42°F | 27°F | 56°F 2012 | 8°F 1985 | 36% | 8% |
| Dec 2 | 41°F | 27°F | 62°F 2021 | 11°F 1985 | 36% | 8% |
| Dec 3 | 41°F | 27°F | 59°F 2021 | 10°F 1984 | 36% | 9% |
| Dec 4 | 41°F | 26°F | 56°F 1975 | 7°F 1972 | 36% | 9% |
| Dec 5 | 40°F | 26°F | 58°F 2007 | -3°F 1992 | 36% | 9% |
| Dec 6 | 40°F | 26°F | 57°F 1965 | -5°F 1992 | 36% | 9% |
| Dec 7 | 40°F | 26°F | 58°F 1965 | 2°F 2016 | 36% | 9% |
| Dec 8 | 40°F | 25°F | 58°F 1975 | -9°F 2013 | 36% | 9% |
| Dec 9 | 39°F | 25°F | 58°F 1975 | -12°F 1972 | 36% | 9% |
| Dec 10 | 39°F | 25°F | 55°F 1987 | -7°F 1972 | 36% | 10% |
| Dec 11 | 39°F | 25°F | 56°F 2025 | -1°F 1972 | 35% | 10% |
| Dec 12 | 39°F | 25°F | 59°F 2025 | 6°F 1985 | 35% | 10% |
| Dec 13 | 39°F | 25°F | 59°F 1995 | -2°F 1972 | 35% | 10% |
| Dec 14 | 38°F | 24°F | 57°F 2025 | 4°F 1984 | 35% | 10% |
| Dec 15 | 38°F | 24°F | 59°F 2025 | -1°F 1967 | 35% | 10% |
| Dec 16 | 38°F | 24°F | 52°F 1982 | 3°F 1967 | 35% | 10% |
| Dec 17 | 38°F | 24°F | 54°F 2025 | -5°F 2016 | 34% | 10% |
| Dec 18 | 38°F | 24°F | 53°F 1998 | -7°F 2016 | 34% | 10% |
| Dec 19 | 38°F | 24°F | 57°F 2024 | -7°F 2016 | 34% | 10% |
| Dec 20 | 38°F | 24°F | 50°F 1989 | -12°F 1990 | 34% | 10% |
| Dec 21 | 38°F | 23°F | 56°F 2023 | -6°F 1998 | 34% | 11% |
| Dec 22 | 38°F | 23°F | 53°F 1980 | -4°F 1983 | 34% | 11% |
| Dec 23 | 38°F | 23°F | 51°F 2019 | -18°F 1983 | 34% | 11% |
| Dec 24 | 38°F | 23°F | 54°F 2025 | 3°F 1998 | 34% | 11% |
| Dec 25 | 38°F | 23°F | 54°F 2025 | 7°F 2016 | 33% | 11% |
| Dec 26 | 38°F | 23°F | 54°F 2025 | 5°F 1985 | 33% | 11% |
| Dec 27 | 38°F | 23°F | 57°F 1980 | -2°F 1990 | 33% | 11% |
| Dec 28 | 38°F | 23°F | 55°F 2020 | 4°F 1988 | 33% | 11% |
| Dec 29 | 38°F | 23°F | 52°F 1980 | -8°F 1968 | 33% | 11% |
| Dec 30 | 38°F | 23°F | 55°F 1980 | -16°F 1968 | 33% | 11% |
| Dec 31 | 38°F | 23°F | 52°F 1980 | -3°F 1968 | 33% | 11% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:12 AM, sunset 4:11 PM
- December 31
- sunrise 7:32 AM, sunset 4:19 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00354622 (La Grande), public domain. Records: NOAA GHCN-Daily, station USC00354622, 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.