Weather on September 11
Saint Louis, MO
55 Years of Data
Avg High
83°F
Avg Low
59°F
Warmest
2013
87°F avg
Coldest
1976
59°F avg
About This Date
September 11th in Saint Louis, MO typically brings warm fall weather, with average highs around 83°F and lows near 59°F. Over 53 years of records, the warmest September 11th was in 2013 (87°F average), while the coldest was 1976 (59°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 19% of September 11th dates historically, with the wettest September 11th recording 2.24" of rain. 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 September 11th in Saint Louis, MO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 57° | 74° | — | — |
| 2024 | 91° | 52° | 71° | — | — |
| 2023 | 78° | 58° | 68° | 0.08" | — |
| 2022 | 74° | 52° | 63° | 0.05" | — |
| 2021 | 87° | 63° | 75° | — | — |
| 2020 | 86° | 70° | 78° | — | — |
| 2019 | 91° | 71° | 81° | — | — |
| 2018 | 83° | 57° | 70° | — | — |
| 2017 | 80° | 47° | 63° | — | — |
| 2016 | 78° | 65° | 71° | — | — |
| 2015 | 84° | 65° | 74° | 0.25" | — |
| 2014 | 87° | 58° | 72° | 1.75" | — |
| 2013warmest | 100° | 73° | 87° | — | — |
| 2012 | 80° | 59° | 70° | — | — |
| 2011 | 74° | 59° | 66° | — | — |
| 2010 | 68° | 61° | 64° | 1.63" | — |
| 2009 | 82° | 61° | 71° | — | — |
| 2008 | 77° | 57° | 67° | — | — |
| 2007 | 86° | 59° | 73° | 0.03" | — |
| 2006 | 85° | 64° | 74° | 0.36" | — |
| 2005 | 92° | 67° | 79° | — | — |
| 2004 | 83° | 55° | 69° | — | — |
| 2003 | 87° | 66° | 77° | — | — |
| 2002 | 92° | 67° | 79° | — | — |
| 2001 | 77° | 53° | 65° | — | — |
| 2000 | 85° | 72° | 78° | 0.13" | — |
| 1999 | 86° | 60° | 73° | — | — |
| 1998 | 78° | 51° | 65° | — | — |
| 1997 | 74° | 50° | 62° | — | — |
| 1996 | 81° | 59° | 70° | — | — |
| 1995 | 77° | 53° | 65° | — | — |
| 1994 | 86° | 58° | 72° | — | — |
| 1993 | 75° | 50° | 63° | — | — |
| 1992 | 75° | 49° | 62° | — | — |
| 1991 | 91° | 74° | 82° | — | — |
| 1990 | 85° | 71° | 78° | — | — |
| 1989 | 71° | 54° | 62° | — | — |
| 1988 | 86° | 69° | 78° | — | — |
| 1987 | 84° | 54° | 69° | — | — |
| 1986 | 78° | 46° | 62° | 2.24" | — |
| 1985 | 76° | 51° | 63° | — | — |
| 1982 | 87° | 64° | 76° | — | — |
| 1981 | 86° | 60° | 73° | — | — |
| 1980 | 80° | 50° | 65° | — | — |
| 1979 | 90° | 57° | 73° | — | — |
| 1978 | 93° | 63° | 78° | — | — |
| 1977 | 79° | 50° | 64° | — | — |
| 1976coldest | 76° | 43° | 59° | — | — |
| 1975 | 86° | 69° | 78° | 0.58" | — |
| 1974 | 82° | 67° | 74° | — | — |
| 1973 | 78° | 63° | 70° | — | — |
| 1972 | 93° | 68° | 81° | — | — |
| 1971 | 91° | — | — | — | — |
53 years of data from ST LOUIS ST LOUIS UNIV