December weather in Ione, WA
The average temperature in Ione in December is °F (°F–°F). Average precipitation: 6.67 inches.
December is a winter month in Ione, and is cooler than the annual average of 0°F. Expect about 16 days with precipitation. Daylight averages about 8h 4m.
Avg High
°F
Avg Low
°F
Precipitation
6.67 in
Daylight
8h 4m
December records in Ione
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 41.7°F (2021) | -7.6°F (2007) | 1.70 in (2001) |
| December 2 | 37.2°F (2021) | -10.7°F (2009) | 1.70 in (2007) |
| December 3 | 40.1°F (2007) | -12.1°F (2009) | 2.30 in (2007) |
| December 4 | 40.5°F (2007) | -17.7°F (1994) | 1.30 in (1989) |
| December 5 | 41.2°F (2023) | -16.4°F (1994) | 3.00 in (2023) |
| December 6 | 40.5°F (2023) | -15.7°F (1992) | 1.90 in (2023) |
| December 7 | 32.5°F (2006) | -22.4°F (2013) | 1.00 in (1984) |
| December 8 | 41.0°F (2015) | -22.2°F (1995) | 1.40 in (2015) |
| December 9 | 39.0°F (2015) | -23.6°F (1995) | 0.90 in (1987) |
| December 10 | 42.1°F (2025) | -6.5°F (2009) | 1.60 in (2025) |
| December 11 | 41.2°F (2025) | -13.0°F (2000) | 1.30 in (2018) |
| December 12 | 36.9°F (2014) | -15.7°F (2000) | 1.20 in (1995) |
| December 13 | 37.6°F (2025) | -16.8°F (2016) | 2.10 in (2001) |
| December 14 | 37.9°F (2002) | -21.1°F (2016) | 1.10 in (2001) |
| December 15 | 43.0°F (2025) | -15.7°F (2008) | 1.80 in (1999) |
| December 16 | 36.0°F (2025) | -21.1°F (2008) | 2.30 in (2001) |
| December 17 | 37.0°F (2025) | -11.0°F (1996) | 1.80 in (2012) |
| December 18 | 34.5°F (2004) | -7.6°F (1990) | 1.40 in (2024) |
| December 19 | 34.3°F (2023) | -13.0°F (1998) | 1.50 in (2017) |
| December 20 | 36.5°F (2005) | -24.2°F (1998) | 1.10 in (2009) |
| December 21 | 37.8°F (2005) | -26.0°F (1998) | 1.30 in (2009) |
| December 22 | 36.0°F (2005) | -27.2°F (1990) | 1.10 in (1986) |
| December 23 | 33.6°F (2005) | -23.8°F (1990) | 0.90 in (2021) |
| December 24 | 37.0°F (2025) | -17.9°F (2017) | 1.20 in (2022) |
| December 25 | 37.0°F (2005) | -17.3°F (1996) | 0.80 in (1998) |
| December 26 | 35.2°F (2004) | -19.7°F (1996) | 1.20 in (1994) |
| December 27 | 33.1°F (1994) | -4.4°F (2025) | 1.90 in (2022) |
| December 28 | 34.7°F (2011) | -18.2°F (1990) | 0.70 in (2024) |
| December 29 | 34.3°F (2011) | -30.1°F (1990) | 1.70 in (1996) |
| December 30 | 32.9°F (1997) | -16.4°F (1990) | 0.80 in (1988) |
| December 31 | 33.6°F (2005) | -17.5°F (2021) | 1.40 in (1996) |