Weather on December 31 at Rocky Mountain
Rocky Mountain National Park
Based on 51 years of data from Estes Park, CO
Elevation Note: Rocky Mountain sits at 8,000 ft. Expect temperatures 28°F cooler than the data shown below, which comes from Estes Park, CO at a lower elevation.
Planning Your Visit
December 31st in Rocky Mountain National Park (via Estes Park, CO) typically brings cold winter weather, with average highs around 34°F and lows near 14°F. Over 51 years of records, the warmest December 31st was in 1980 (42°F average), while the coldest was 2014 (-12°F) — a 54°F range across recorded history. Precipitation has occurred on 20% of recorded December 31st dates, with snow falling 20% of the time (heaviest snowfall: 5"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 31st in Rocky Mountain? Bundle up with warm layers and protect extremities from the cold. Check road conditions if traveling, as snow is possible.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 53°F | 29°F | 0" | -- |
| 2024 | 32°F | 8°F | 0" | 0" |
| 2023 | 49°F | 13°F | 0" | 0" |
| 2022 | 38°F | 29°F | 0.03" | 0" |
| 2021 | 27°F | 10°F | -- | -- |
| 2020 | 32°F | 19°F | 0" | 0" |
| 2019 | 27°F | 8°F | 0" | 0" |
| 2018 | 35°F | 11°F | 0" | 0" |
| 2017 | 51°F | 17°F | 0" | 0.1" |
| 2016 | 45°F | 29°F | 0" | 0" |
| 2015 | 22°F | -1°F | 0" | 0" |
| 2014 | -4°F | -20°F | 0.03" | 0.1" |
| 2013 | 33°F | 25°F | 0" | 0" |
| 2012 | 34°F | 7°F | 0" | 0" |
| 2011 | 46°F | 26°F | 0.03" | 0.2" |
| 2010 | 25°F | -3°F | 0.3" | 3.6" |
| 2009 | 27°F | 12°F | 0" | 0.1" |
| 2008 | 42°F | 11°F | 0" | 0" |
| 2007 | 26°F | 11°F | 0.1" | 0.6" |
| 2006 | 26°F | 1°F | 0" | 0" |
| 2005 | 38°F | 22°F | 0" | 0" |
| 2004 | 33°F | 28°F | 0" | 0.1" |
| 2003 | 34°F | 27°F | 0" | 0" |
| 2002 | 36°F | 22°F | 0" | 0" |
| 2001 | 24°F | 10°F | 0" | 0" |
| 2000 | 31°F | 16°F | 0.03" | 0.2" |
| 1999 | 46°F | 20°F | 0" | 0" |
| 1998 | 39°F | 22°F | 0" | 0" |
| 1997 | 35°F | 28°F | 0" | 0" |
| 1996 | 43°F | 21°F | 0" | 0" |
| 1995 | 29°F | 21°F | 0.2" | 1.4" |
| 1994 | 21°F | 3°F | 0.48" | 5" |
| 1993 | 41°F | 33°F | 0" | 0" |
| 1992 | 35°F | 24°F | 0" | 0" |
| 1991 | 37°F | 6°F | 0" | 0" |
| 1990 | 44°F | -9°F | 0" | 0" |
| 1989 | 32°F | 14°F | 0" | 0" |
| 1988 | 36°F | 10°F | 0" | 0" |
| 1986 | 37°F | 19°F | 0" | -- |
| 1984 | 50°F | 21°F | 0" | 0" |
| 1983 | 42°F | 37°F | 0" | -- |
| 1982 | 33°F | -3°F | 0" | 0" |
| 1981 | 34°F | 13°F | 0" | -- |
| 1980 | 55°F | 29°F | 0" | 0" |
| 1978 | 9°F | -15°F | 0" | -- |
| 1977 | 38°F | 20°F | 0.25" | -- |
| 1975 | 43°F | 19°F | 0.56" | -- |
| 1974 | 29°F | -4°F | 0" | 0" |
| 1973 | 15°F | -13°F | 0" | 0" |
| 1972 | 26°F | 12°F | 0" | -- |
| 1971 | 39°F | 17°F | 0" | -- |