December weather in Downey, ID
The average temperature in Downey in December is 24.9°F (16.2°F–33.6°F). Average precipitation: 1.07 inches.
December is a winter month in Downey, and is cooler than the annual average of 45.6°F. Daily temperatures swing about 17.4°F between overnight low and afternoon high. Daylight averages about 8h 54m. For travel, December is cold.
Avg High
33.6°F
Avg Low
16.2°F
Precipitation
1.07 in
Daylight
8h 54m
December records in Downey
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 48.9°F (1899) | -4.0°F (1898) | 0.06 in (1895) |
| December 2 | 51.1°F (2021) | -9.9°F (1898) | 0.20 in (1898) |
| December 3 | 52.0°F (2021) | -2.9°F (2015) | 0.11 in (2023) |
| December 4 | 55.0°F (2021) | -15.0°F (1898) | 0.25 in (2023) |
| December 5 | 51.1°F (2014) | -11.9°F (1898) | 0.50 in (1899) |
| December 6 | 52.0°F (2014) | -11.9°F (1898) | 0.19 in (2025) |
| December 7 | 53.1°F (2014) | -14.1°F (1898) | 0.20 in (1901) |
| December 8 | 54.0°F (2014) | -17.0°F (1898) | 0.20 in (1899) |
| December 9 | 46.9°F (2014) | -22.0°F (1898) | 0.10 in (2016) |
| December 10 | 52.0°F (2014) | -18.0°F (1898) | 0.06 in (2021) |
| December 11 | 54.0°F (2025) | -18.0°F (1898) | 0.40 in (1897) |
| December 12 | 55.9°F (2025) | -20.9°F (1898) | 0.14 in (2023) |
| December 13 | 57.9°F (2014) | -9.9°F (1898) | 0.20 in (2022) |
| December 14 | 53.1°F (2025) | -9.0°F (1897) | 0.20 in (1897) |
| December 15 | 48.9°F (2025) | -11.0°F (1898) | 0.68 in (2021) |
| December 16 | 48.9°F (1900) | -9.9°F (1897) | 0.15 in (2016) |
| December 17 | 48.9°F (2025) | -7.1°F (1897) | 0.14 in (2016) |
| December 18 | 46.9°F (2014) | -16.1°F (1897) | 0.19 in (2025) |
| December 19 | 45.0°F (2014) | -18.0°F (1899) | 0.01 in (2018) |
| December 20 | 48.9°F (2023) | -2.0°F (2022) | 0.05 in (1895) |
| December 21 | 48.0°F (2023) | -11.9°F (1897) | 0.70 in (1898) |
| December 22 | 51.1°F (2025) | -26.0°F (1898) | 0.39 in (2015) |
| December 23 | 55.0°F (2025) | -6.0°F (2022) | 0.12 in (2017) |
| December 24 | 55.0°F (2025) | -4.0°F (2017) | 0.12 in (2024) |
| December 25 | 55.9°F (2025) | -8.0°F (2017) | 0.66 in (2016) |
| December 26 | 53.1°F (2025) | 1.9°F (1900) | 0.18 in (2018) |
| December 27 | 45.0°F (2025) | -6.0°F (2015) | 0.31 in (2025) |
| December 28 | 39.9°F (1898) | -9.9°F (2015) | 0.52 in (2022) |
| December 29 | 39.9°F (1897) | -11.0°F (1895) | 0.05 in (2024) |
| December 30 | 46.0°F (2017) | -5.1°F (1900) | 0.60 in (1898) |
| December 31 | 50.0°F (2017) | -11.9°F (1900) | 0.20 in (2022) |