December weather in Deer Park, WA
The average temperature in Deer Park in December is 27.2°F (21.3°F–33.1°F). Average precipitation: 3.06 inches.
December is a winter month in Deer Park, and is cooler than the annual average of 45.6°F. Daily temperatures swing about 11.8°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 8h 11m. For travel, December is cold.
Avg High
33.1°F
Avg Low
21.3°F
Precipitation
3.06 in
Daylight
8h 11m
December records in Deer Park
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 59.0°F (2021) | 12.9°F (2006) | 0.79 in (1998) |
| December 2 | 51.1°F (2021) | 7.0°F (2005) | 1.07 in (1999) |
| December 3 | 48.9°F (2012) | 3.0°F (2006) | 1.35 in (2007) |
| December 4 | 54.0°F (2007) | 5.2°F (2013) | 0.53 in (2012) |
| December 5 | 48.9°F (2023) | 3.9°F (2005) | 1.30 in (2023) |
| December 6 | 46.9°F (2011) | -0.9°F (2005) | 1.25 in (2023) |
| December 7 | 44.1°F (2023) | -5.8°F (2013) | 1.13 in (2015) |
| December 8 | 55.0°F (2015) | -6.0°F (2005) | 0.80 in (2015) |
| December 9 | 52.0°F (2015) | 3.9°F (2009) | 0.72 in (1999) |
| December 10 | 54.0°F (2025) | -2.0°F (2009) | 0.92 in (2022) |
| December 11 | 53.1°F (2025) | 0.0°F (2005) | 0.93 in (2018) |
| December 12 | 48.9°F (2014) | 1.2°F (2016) | 0.65 in (2008) |
| December 13 | 52.0°F (2025) | -5.8°F (2016) | 1.04 in (2001) |
| December 14 | 52.0°F (2002) | -2.7°F (2016) | 0.93 in (2002) |
| December 15 | 57.0°F (2025) | -2.0°F (2008) | 0.75 in (2009) |
| December 16 | 48.9°F (2025) | -14.1°F (2008) | 0.80 in (2002) |
| December 17 | 50.0°F (2025) | -12.8°F (2016) | 0.55 in (1999) |
| December 18 | 48.9°F (2024) | 0.0°F (2000) | 1.20 in (2018) |
| December 19 | 46.0°F (2025) | 3.9°F (1998) | 1.13 in (2017) |
| December 20 | 46.9°F (2019) | -17.0°F (2008) | 0.64 in (2014) |
| December 21 | 53.1°F (2019) | -13.9°F (2022) | 0.69 in (2009) |
| December 22 | 46.9°F (2014) | -8.9°F (2022) | 0.75 in (2005) |
| December 23 | 41.0°F (2005) | -9.9°F (2008) | 0.40 in (2007) |
| December 24 | 46.9°F (2005) | -3.8°F (2017) | 0.54 in (2024) |
| December 25 | 45.0°F (2005) | -5.8°F (2017) | 0.63 in (1998) |
| December 26 | 44.1°F (2004) | -9.8°F (2017) | 0.63 in (2022) |
| December 27 | 53.1°F (2008) | 3.9°F (2001) | 1.47 in (2022) |
| December 28 | 57.0°F (2008) | -5.8°F (2021) | 0.45 in (2010) |
| December 29 | 48.9°F (2011) | -2.9°F (2003) | 0.67 in (2008) |
| December 30 | 44.1°F (2023) | -6.9°F (2014) | 0.77 in (2002) |
| December 31 | 42.1°F (2005) | -13.0°F (2010) | 0.64 in (2019) |