Weather on April 9 at Gateway Arch
Gateway Arch National Park
Based on 56 years of data from St. Louis, MO
Planning Your Visit
April 9th in Gateway Arch National Park (via St. Louis, MO) typically brings mild spring weather, with average highs around 65°F and lows near 42°F. Over 56 years of records, the warmest April 9th was in 2001 (77°F average), while the coldest was 1982 (35°F) — a 42°F range across recorded history. Rain or other precipitation has occurred on about 30% of April 9th dates historically, with the wettest April 9th recording 2.59" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for April 9th in Gateway Arch? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 81°F | 48°F | 0" | 0" |
| 2025 | 70°F | 40°F | 0" | 0" |
| 2024 | 74°F | 50°F | 0" | 0" |
| 2023 | 70°F | 35°F | 0" | 0" |
| 2022 | 59°F | 35°F | 0" | 0" |
| 2021 | 81°F | 44°F | 0" | 0" |
| 2020 | 62°F | 39°F | 0" | -- |
| 2019 | 73°F | 49°F | 0" | 0" |
| 2018 | 42°F | 36°F | 0" | 0" |
| 2017 | 82°F | 57°F | 0" | 0" |
| 2016 | 54°F | 31°F | 0" | 0" |
| 2015 | 83°F | 56°F | 0.81" | 0" |
| 2014 | 62°F | 41°F | 0" | 0" |
| 2013 | 78°F | 60°F | 0" | 0" |
| 2012 | 67°F | 40°F | 0" | -- |
| 2011 | 79°F | 59°F | 0.97" | 0" |
| 2010 | 61°F | 35°F | 0" | 0" |
| 2009 | 62°F | 31°F | 0" | 0" |
| 2008 | 70°F | 41°F | 0.08" | 0" |
| 2007 | 49°F | 23°F | 0" | 0" |
| 2006 | 52°F | 31°F | 0" | 0" |
| 2005 | 72°F | 44°F | 0" | 0" |
| 2004 | 65°F | 37°F | 0" | 0" |
| 2003 | 43°F | 34°F | 0.03" | 0" |
| 2002 | 70°F | 51°F | 0.33" | 0" |
| 2001 | 87°F | 67°F | 0" | 0" |
| 2000 | 51°F | 32°F | 0" | 0" |
| 1999 | 80°F | 57°F | 1.3" | 0" |
| 1998 | 72°F | 44°F | 0" | 0" |
| 1997 | 49°F | 25°F | 0" | 0" |
| 1996 | 55°F | 26°F | 0" | 0" |
| 1995 | 81°F | 51°F | 0" | 0" |
| 1994 | 67°F | 57°F | 0" | 0" |
| 1993 | 64°F | 51°F | 0.51" | 0" |
| 1992 | 78°F | 56°F | 0.2" | 0" |
| 1991 | 76°F | 42°F | 0.03" | 0" |
| 1990 | 67°F | 42°F | 0" | 0" |
| 1989 | 52°F | 28°F | 0" | 0" |
| 1988 | 73°F | 49°F | 0" | 0" |
| 1987 | 75°F | 39°F | 0" | 0" |
| 1986 | 62°F | 36°F | 0" | 0" |
| 1985 | 54°F | 41°F | 0" | 0" |
| 1984 | 54°F | 49°F | 0.03" | 0" |
| 1983 | 53°F | 41°F | 2.59" | 0" |
| 1982 | 37°F | 32°F | 2.31" | 0" |
| 1981 | 78°F | 51°F | 1.02" | 0" |
| 1980 | 53°F | 43°F | 0" | 0" |
| 1979 | 70°F | 37°F | 0.43" | 0" |
| 1978 | 81°F | 55°F | 0" | 0" |
| 1977 | 63°F | 38°F | 0" | 0" |
| 1976 | 62°F | 32°F | 0" | 0" |
| 1975 | 65°F | 44°F | 0.18" | 0" |
| 1974 | 48°F | 27°F | 0.05" | 0" |
| 1973 | 51°F | 33°F | 2.34" | 0" |
| 1972 | 52°F | 33°F | 0" | 0" |
| 1971 | 77°F | 53°F | 0" | 0" |