December weather in Irrigon, OR
The average temperature in Irrigon in December is 33.6°F (25.7°F–41.5°F). Average precipitation: 1.04 inches.
December is a winter month in Irrigon, and is cooler than the annual average of 51.9°F. Daily temperatures swing about 15.8°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 8h 29m. For travel, December is cold.
Avg High
41.5°F
Avg Low
25.7°F
Precipitation
1.04 in
Daylight
8h 29m
December records in Irrigon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 54.0°F (2001) | 8.1°F (2019) | 0.27 in (2003) |
| December 2 | 70.0°F (2021) | 16.0°F (2009) | 0.41 in (2012) |
| December 3 | 60.1°F (2008) | 16.0°F (2009) | 0.20 in (2023) |
| December 4 | 69.1°F (2007) | 6.1°F (2013) | 0.27 in (2012) |
| December 5 | 64.9°F (2007) | 1.9°F (2013) | 0.50 in (2022) |
| December 6 | 61.0°F (2023) | 0.0°F (2013) | 0.45 in (2022) |
| December 7 | 62.1°F (2025) | 6.1°F (2013) | 0.69 in (2007) |
| December 8 | 61.0°F (2025) | -8.0°F (2013) | 0.20 in (2015) |
| December 9 | 70.0°F (2015) | -2.9°F (2013) | 0.26 in (2016) |
| December 10 | 59.0°F (2025) | -2.0°F (2009) | 0.52 in (2025) |
| December 11 | 73.0°F (2025) | -2.0°F (2009) | 0.20 in (2003) |
| December 12 | 75.0°F (2014) | -0.9°F (2009) | 0.29 in (2002) |
| December 13 | 60.1°F (1999) | 10.9°F (2013) | 0.17 in (2015) |
| December 14 | 64.0°F (2025) | 15.1°F (2009) | 1.00 in (2008) |
| December 15 | 68.0°F (2002) | 14.0°F (2008) | 3.00 in (2008) |
| December 16 | 75.0°F (2025) | -9.9°F (2008) | 0.50 in (2008) |
| December 17 | 63.0°F (2025) | -9.0°F (2008) | 0.18 in (2025) |
| December 18 | 55.9°F (2024) | -8.0°F (2016) | 0.23 in (2008) |
| December 19 | 62.1°F (2024) | 5.0°F (2016) | 0.57 in (2021) |
| December 20 | 57.9°F (2014) | 9.0°F (2008) | 0.50 in (2022) |
| December 21 | 64.9°F (2019) | 8.1°F (2008) | 0.27 in (2008) |
| December 22 | 63.0°F (2014) | -0.9°F (2008) | 0.21 in (2009) |
| December 23 | 60.1°F (2014) | 3.0°F (2008) | 0.27 in (2015) |
| December 24 | 60.1°F (2013) | 3.0°F (2022) | 0.37 in (2012) |
| December 25 | 55.9°F (2024) | 6.1°F (2020) | 0.42 in (2014) |
| December 26 | 54.0°F (2014) | 10.9°F (2008) | 0.50 in (2024) |
| December 27 | 61.0°F (2024) | 15.1°F (2021) | 0.39 in (2002) |
| December 28 | 62.1°F (2022) | 7.0°F (2021) | 0.14 in (2007) |
| December 29 | 62.1°F (2011) | 0.0°F (2021) | 1.23 in (2010) |
| December 30 | 62.1°F (2011) | 3.0°F (2021) | 0.30 in (2022) |
| December 31 | 52.0°F (2024) | 7.0°F (2014) | 0.46 in (2005) |