December weather in Glendo, WY
The average temperature in Glendo in December is 27.0°F (16.1°F–37.8°F). Average precipitation: 0.54 inches.
December is a winter month in Glendo, and is cooler than the annual average of 47.8°F. Daily temperatures swing about 21.7°F between overnight low and afternoon high. Daylight averages about 8h 54m. For travel, December is cold.
Avg High
37.8°F
Avg Low
16.1°F
Precipitation
0.54 in
Daylight
8h 54m
December records in Glendo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 68.0°F (2021) | 0.0°F (2025) | 0.16 in (2022) |
| December 2 | 70.0°F (2021) | 12.9°F (2019) | 0.40 in (2019) |
| December 3 | 60.1°F (2024) | 6.1°F (2013) | 0.04 in (2015) |
| December 4 | 61.0°F (2021) | -5.1°F (2013) | 0.00 in (2012) |
| December 5 | 62.1°F (2012) | -15.0°F (2013) | 0.00 in (2012) |
| December 6 | 55.9°F (2024) | -11.9°F (2013) | 0.02 in (2025) |
| December 7 | 60.1°F (2024) | -9.0°F (2013) | 0.39 in (2018) |
| December 8 | 63.0°F (2020) | -9.9°F (2016) | 0.40 in (2018) |
| December 9 | 66.9°F (2020) | -13.0°F (2013) | 0.01 in (2025) |
| December 10 | 55.9°F (2014) | 8.1°F (2021) | 0.46 in (2019) |
| December 11 | 66.0°F (2014) | -4.0°F (2013) | 0.40 in (2019) |
| December 12 | 70.0°F (2014) | 7.0°F (2016) | 0.19 in (2021) |
| December 13 | 54.0°F (2014) | 0.0°F (2016) | 0.06 in (2015) |
| December 14 | 62.1°F (2025) | 7.0°F (2016) | 0.01 in (2015) |
| December 15 | 64.0°F (2025) | 6.1°F (2019) | 0.07 in (2019) |
| December 16 | 62.1°F (2025) | -2.0°F (2016) | 0.01 in (2020) |
| December 17 | 63.0°F (2025) | -18.9°F (2016) | 0.10 in (2015) |
| December 18 | 57.9°F (2013) | -20.9°F (2016) | 0.05 in (2014) |
| December 19 | 62.1°F (2025) | 3.0°F (2022) | 0.05 in (2016) |
| December 20 | 55.0°F (2024) | 3.9°F (2013) | 0.04 in (2025) |
| December 21 | 61.0°F (2025) | -20.9°F (2022) | 0.06 in (2014) |
| December 22 | 68.0°F (2025) | -24.0°F (2022) | 0.00 in (2012) |
| December 23 | 64.0°F (2025) | -15.0°F (2022) | 0.06 in (2013) |
| December 24 | 69.1°F (2025) | -2.0°F (2022) | 0.04 in (2013) |
| December 25 | 66.0°F (2025) | -2.0°F (2012) | 0.00 in (2012) |
| December 26 | 59.0°F (2025) | -2.9°F (2012) | 0.10 in (2019) |
| December 27 | 55.9°F (2022) | -11.0°F (2015) | 0.04 in (2020) |
| December 28 | 48.9°F (2022) | -7.1°F (2015) | 0.00 in (2012) |
| December 29 | 53.1°F (2024) | -2.0°F (2012) | 0.00 in (2012) |
| December 30 | 48.0°F (2016) | -22.0°F (2014) | 0.06 in (2024) |
| December 31 | 59.0°F (2025) | -18.9°F (2014) | 0.10 in (2020) |