Weather on February 20 at Gateway Arch
Gateway Arch National Park
Based on 53 years of data from St. Louis, MO
Planning Your Visit
February 20th in Gateway Arch National Park (via St. Louis, MO) typically brings cool winter weather, with average highs around 50°F and lows near 28°F. Over 53 years of records, the warmest February 20th was in 2016 (61°F average), while the coldest was 2025 (10°F) — a 51°F range across recorded history. Rain or other precipitation has occurred on about 21% of February 20th dates historically, with the wettest February 20th recording 1.98" of rain. The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
Planning for February 20th in Gateway Arch? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 49°F | 30°F | 0" | -- |
| 2025 | 18°F | 2°F | 0" | 0" |
| 2024 | 66°F | 27°F | 0" | 0" |
| 2023 | 65°F | 36°F | 0" | 0" |
| 2022 | 63°F | 27°F | 0" | 0" |
| 2021 | 37°F | 6°F | 0" | 0" |
| 2020 | 33°F | 20°F | 0" | 0" |
| 2019 | 44°F | 32°F | 0.56" | 0" |
| 2018 | 68°F | 48°F | 1.98" | 0" |
| 2017 | 71°F | 51°F | 0" | 0" |
| 2016 | 75°F | 46°F | 0" | 0" |
| 2015 | 18°F | 8°F | 0" | 0" |
| 2014 | 68°F | 45°F | 0.74" | 0" |
| 2013 | 56°F | 18°F | 0" | 0" |
| 2012 | 43°F | 20°F | 0" | -- |
| 2011 | 54°F | 42°F | 0" | 0" |
| 2010 | 43°F | 27°F | 0" | 0" |
| 2009 | 37°F | 15°F | 0" | 0" |
| 2008 | 32°F | 15°F | 0" | 0" |
| 2007 | 58°F | 33°F | 0" | 0" |
| 2006 | 26°F | 10°F | 0" | 0" |
| 2005 | 46°F | 31°F | 0.1" | 0" |
| 2004 | 69°F | 44°F | 0" | 0" |
| 2003 | 45°F | 23°F | 0" | 0" |
| 2002 | 56°F | 47°F | 1.14" | 0" |
| 2001 | 62°F | 36°F | 0" | 0" |
| 2000 | 37°F | 26°F | 0" | 0" |
| 1999 | 45°F | 32°F | 0" | 0" |
| 1998 | 45°F | 41°F | 0.05" | 0" |
| 1997 | 58°F | 43°F | 0.97" | 0" |
| 1996 | 74°F | 30°F | 0" | 0" |
| 1995 | 62°F | 29°F | 0" | 0" |
| 1994 | 65°F | 46°F | 0.89" | 0" |
| 1993 | 35°F | 29°F | 0.25" | 0" |
| 1992 | 60°F | 31°F | 0" | 0" |
| 1991 | 58°F | 37°F | 0" | 0" |
| 1990 | 49°F | 22°F | 0" | 0" |
| 1989 | 44°F | 27°F | 0.61" | 0" |
| 1988 | 43°F | 13°F | 0" | 0" |
| 1987 | 44°F | 25°F | 0" | 0" |
| 1986 | 46°F | 28°F | 0" | 0" |
| 1983 | 65°F | 37°F | 0" | 0" |
| 1982 | 58°F | 34°F | 0" | 0" |
| 1980 | -- | 35°F | 0" | 0" |
| 1979 | 30°F | 19°F | 0" | 0" |
| 1978 | 31°F | 9°F | 0" | 0" |
| 1977 | 48°F | 28°F | 0" | 0" |
| 1976 | 60°F | 26°F | 0" | 0" |
| 1975 | 42°F | 22°F | 0" | 0" |
| 1974 | 44°F | 26°F | 0.18" | 0" |
| 1973 | 45°F | 7°F | 0" | -- |
| 1972 | 43°F | 22°F | 0" | -- |
| 1971 | 70°F | 37°F | 0" | 0" |