Weather on December 31 at Gateway Arch
Gateway Arch National Park
Based on 53 years of data from St. Louis, MO
Planning Your Visit
December 31st in Gateway Arch National Park (via St. Louis, MO) typically brings chilly winter weather, with average highs around 43°F and lows near 27°F. Over 53 years of records, the warmest December 31st was in 2004 (56°F average), while the coldest was 2017 (5°F) — a 51°F range across recorded history. Precipitation has occurred on 32% of recorded December 31st dates, with snow falling 11% of the time (heaviest snowfall: 1.2"). The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for December 31st in Gateway Arch? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 40°F | 24°F | 0" | -- |
| 2024 | 52°F | 34°F | 0.28" | -- |
| 2023 | 40°F | 35°F | 0" | -- |
| 2022 | 50°F | 33°F | 0" | 0" |
| 2021 | 67°F | 41°F | 0.74" | -- |
| 2020 | 34°F | 25°F | 0" | -- |
| 2019 | 41°F | 34°F | 0" | 0" |
| 2018 | 50°F | 40°F | 2.95" | 0" |
| 2017 | 15°F | -6°F | 0" | 0" |
| 2016 | 50°F | 38°F | 0" | 0" |
| 2015 | 36°F | 31°F | 0" | 0" |
| 2014 | 29°F | 13°F | 0" | 0" |
| 2013 | 42°F | 22°F | 0" | 0" |
| 2012 | 38°F | 32°F | 0" | 0.2" |
| 2011 | 58°F | 29°F | 0" | 0" |
| 2010 | 58°F | 49°F | 0.1" | 0" |
| 2009 | 35°F | 29°F | 0.08" | 0.2" |
| 2008 | 67°F | 22°F | 0" | 0" |
| 2007 | 47°F | 22°F | 0" | 0" |
| 2006 | 57°F | 49°F | 1.3" | 0" |
| 2005 | 42°F | 32°F | 0.25" | 0" |
| 2004 | 64°F | 48°F | 0" | 0" |
| 2003 | 55°F | 38°F | 0" | 0" |
| 2002 | 69°F | 34°F | 0.53" | 0" |
| 2001 | 28°F | 12°F | 0" | 0" |
| 2000 | 20°F | 13°F | 0" | 0" |
| 1999 | 53°F | 22°F | 0" | 0" |
| 1998 | 19°F | 10°F | 0.25" | 1.2" |
| 1997 | 34°F | 25°F | 0.13" | 0.5" |
| 1996 | 47°F | 36°F | 0" | 0" |
| 1995 | 37°F | 33°F | 0.25" | 0.3" |
| 1994 | 41°F | 35°F | 0.2" | 0" |
| 1993 | 49°F | 24°F | 0" | 0" |
| 1992 | 62°F | 20°F | 0.36" | 0" |
| 1991 | 35°F | 32°F | 0" | 0" |
| 1990 | 54°F | 4°F | -- | -- |
| 1989 | 39°F | 24°F | 0.2" | 0" |
| 1988 | 39°F | 21°F | 0" | 0" |
| 1987 | 45°F | 13°F | 0" | 0" |
| 1986 | 40°F | 21°F | 0" | 0" |
| 1984 | 43°F | 23°F | 3.84" | 0" |
| 1982 | 35°F | 24°F | 0" | 0" |
| 1981 | 43°F | 22°F | 0" | -- |
| 1980 | 49°F | 33°F | 0" | 0" |
| 1979 | 44°F | 34°F | 0" | 0" |
| 1978 | 32°F | 21°F | 2.08" | 0.5" |
| 1977 | 44°F | 34°F | 0" | 0" |
| 1976 | 23°F | -7°F | 0" | 0" |
| 1975 | 38°F | 34°F | 0" | 0" |
| 1974 | 42°F | 35°F | 2.39" | 0" |
| 1973 | 29°F | 8°F | -- | -- |
| 1972 | 53°F | 30°F | 0" | 0" |
| 1971 | 48°F | 35°F | 0" | 0" |