Weather on March 9 at Gateway Arch
Gateway Arch National Park
Based on 55 years of data from St. Louis, MO
Planning Your Visit
March 9th in Gateway Arch National Park (via St. Louis, MO) typically brings cool spring weather, with average highs around 56°F and lows near 35°F. Over 55 years of records, the warmest March 9th was in 1974 (71°F average), while the coldest was 1996 (25°F) — a 46°F range across recorded history. Rain or other precipitation has occurred on about 29% of March 9th dates historically, with the wettest March 9th recording 2.74" of rain. The last decade has been 7.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.6°F warmer on this date compared to 20-30 years ago.
Planning for March 9th in Gateway Arch? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 73°F | 41°F | 0" | 0" |
| 2025 | 65°F | 26°F | 0" | 0" |
| 2024 | 52°F | 39°F | 0" | 0" |
| 2023 | 50°F | 42°F | 0.05" | 0" |
| 2022 | 53°F | 30°F | 0" | 0" |
| 2021 | 73°F | 41°F | 0" | 0" |
| 2020 | 61°F | 53°F | 1.35" | 0" |
| 2019 | 66°F | 39°F | 2.74" | 0" |
| 2018 | 54°F | 35°F | 0" | 0" |
| 2017 | 69°F | 49°F | 0" | 0" |
| 2016 | 73°F | 60°F | 0.08" | 0" |
| 2015 | 56°F | 30°F | 0" | 0" |
| 2014 | 48°F | 31°F | 0" | 0" |
| 2013 | 53°F | 30°F | 0.51" | 0" |
| 2012 | 43°F | 28°F | 0" | -- |
| 2011 | 48°F | 42°F | 1.32" | -- |
| 2010 | 59°F | 38°F | 0.28" | 0" |
| 2009 | 74°F | 35°F | 0" | 0" |
| 2008 | 35°F | 19°F | 0" | 0" |
| 2007 | 55°F | 30°F | 0" | 0" |
| 2006 | 66°F | 46°F | 1.85" | 0" |
| 2005 | 44°F | 29°F | 0" | 0" |
| 2004 | 57°F | 37°F | 0" | 0" |
| 2003 | 78°F | 17°F | 0" | 0" |
| 2002 | 73°F | 36°F | 2.54" | 0" |
| 2001 | 50°F | 26°F | 0" | 0" |
| 2000 | 80°F | 48°F | 0" | 0" |
| 1999 | 37°F | 30°F | 2.46" | 0" |
| 1998 | 57°F | 32°F | 0.94" | 0" |
| 1997 | 63°F | 46°F | 0.25" | 0" |
| 1996 | 37°F | 12°F | 0" | 0" |
| 1995 | 40°F | 20°F | 0" | 0" |
| 1994 | 38°F | 32°F | 0" | 0" |
| 1993 | 52°F | 26°F | 0" | 0" |
| 1992 | 73°F | 56°F | 0.66" | 0" |
| 1991 | 51°F | 22°F | 0" | 0" |
| 1990 | 78°F | 60°F | 0" | 0" |
| 1989 | 40°F | 28°F | 0" | 0" |
| 1988 | 50°F | 32°F | 0" | 0" |
| 1987 | 65°F | 20°F | 0" | 0" |
| 1986 | 75°F | 45°F | 0" | 0" |
| 1985 | 61°F | 44°F | 0" | 0" |
| 1984 | 41°F | 23°F | 0" | 0" |
| 1983 | 38°F | 28°F | 0" | 0" |
| 1982 | 52°F | 20°F | 0" | 0" |
| 1980 | -- | 33°F | 0" | 0" |
| 1979 | 43°F | 31°F | 0.03" | 0" |
| 1978 | 32°F | 25°F | 0" | -- |
| 1977 | 76°F | 46°F | 0" | 0" |
| 1976 | 50°F | 38°F | 0" | 0" |
| 1975 | 30°F | 21°F | 0" | 0" |
| 1974 | 82°F | 59°F | 0.03" | 0" |
| 1973 | 68°F | 38°F | 0.58" | 0" |
| 1972 | 56°F | 29°F | 0" | -- |
| 1971 | 36°F | -- | 0" | -- |