December weather in Bar Nunn, WY
The average temperature in Bar Nunn in December is 27.5°F (17.2°F–37.8°F). Average precipitation: 0.65 inches.
December is a winter month in Bar Nunn, and is cooler than the annual average of 47.4°F. Daily temperatures swing about 20.6°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 8h 51m. For travel, December is cold.
Avg High
37.8°F
Avg Low
17.2°F
Precipitation
0.65 in
Daylight
8h 51m
December records in Bar Nunn
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 52.0°F (2021) | 0.0°F (2015) | 0.10 in (2025) |
| December 2 | 61.0°F (2021) | 3.9°F (2009) | 0.42 in (2019) |
| December 3 | 66.0°F (2021) | -0.9°F (2011) | 0.19 in (2011) |
| December 4 | 57.9°F (2021) | -0.9°F (2011) | 0.63 in (2017) |
| December 5 | 57.9°F (2021) | -16.1°F (2013) | 0.32 in (2016) |
| December 6 | 55.9°F (2012) | -17.0°F (2013) | 0.20 in (2016) |
| December 7 | 57.9°F (2023) | -17.0°F (2005) | 0.09 in (2009) |
| December 8 | 57.0°F (2024) | -26.0°F (2016) | 0.24 in (2007) |
| December 9 | 57.0°F (2006) | -20.9°F (2016) | 0.26 in (2008) |
| December 10 | 59.0°F (2020) | -4.0°F (2016) | 0.19 in (2021) |
| December 11 | 57.0°F (2014) | 3.0°F (2013) | 0.00 in (2001) |
| December 12 | 59.0°F (2014) | 1.0°F (2003) | 0.06 in (2020) |
| December 13 | 61.0°F (2014) | -0.9°F (2016) | 0.25 in (2004) |
| December 14 | 57.9°F (2014) | -2.0°F (2016) | 0.30 in (2017) |
| December 15 | 62.1°F (2025) | -17.0°F (2008) | 0.87 in (2015) |
| December 16 | 59.0°F (2025) | -14.1°F (2008) | 0.19 in (2016) |
| December 17 | 57.9°F (2025) | -22.0°F (2016) | 0.10 in (2015) |
| December 18 | 55.0°F (2025) | -22.0°F (2016) | 0.17 in (2020) |
| December 19 | 54.0°F (2023) | -7.1°F (2010) | 0.29 in (2016) |
| December 20 | 59.0°F (2025) | -8.0°F (2008) | 0.40 in (2013) |
| December 21 | 57.9°F (2003) | -9.9°F (2008) | 0.27 in (2017) |
| December 22 | 57.9°F (2024) | -34.1°F (2022) | 0.27 in (2003) |
| December 23 | 61.0°F (2025) | -17.0°F (2022) | 0.60 in (2006) |
| December 24 | 63.0°F (2025) | -9.0°F (2004) | 0.00 in (2001) |
| December 25 | 63.0°F (2025) | -2.9°F (2017) | 0.24 in (2006) |
| December 26 | 61.0°F (2025) | -15.0°F (2017) | 0.24 in (2014) |
| December 27 | 53.1°F (2005) | -15.0°F (2015) | 0.75 in (2016) |
| December 28 | 52.0°F (2004) | -15.0°F (2015) | 0.24 in (2015) |
| December 29 | 52.0°F (2002) | -23.1°F (2015) | 0.24 in (2025) |
| December 30 | 52.0°F (2004) | -29.0°F (2015) | 0.27 in (2005) |
| December 31 | 48.0°F (2023) | -18.9°F (2014) | 0.24 in (2010) |