Weather on September 12
Saint Louis, MO
55 Years of Data
Avg High
83°F
Avg Low
60°F
Warmest
2013
86°F avg
Coldest
2014
58°F avg
About This Date
September 12th in Saint Louis, MO typically brings warm fall weather, with average highs around 83°F and lows near 60°F. Over 53 years of records, the warmest September 12th was in 2013 (86°F average), while the coldest was 2014 (58°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 25% of September 12th dates historically, with the wettest September 12th recording 3.81" 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 12th in Saint Louis, MO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 58° | 76° | — | — |
| 2024 | 83° | 57° | 70° | — | — |
| 2023 | 78° | 52° | 65° | 0.25" | — |
| 2022 | 80° | 51° | 66° | — | — |
| 2021 | 88° | 63° | 75° | — | — |
| 2020 | 80° | 62° | 71° | — | — |
| 2019 | 92° | 70° | 81° | — | — |
| 2018 | 81° | 57° | 69° | — | — |
| 2017 | 78° | 62° | 70° | — | — |
| 2016 | 80° | 58° | 69° | — | — |
| 2015 | 75° | 54° | 64° | — | — |
| 2014coldest | 62° | 54° | 58° | 0.05" | — |
| 2013warmest | 98° | 74° | 86° | 0.13" | — |
| 2012 | 84° | 62° | 73° | — | — |
| 2011 | 63° | 58° | 60° | — | — |
| 2010 | 79° | 54° | 66° | 0.25" | — |
| 2009 | 82° | 62° | 72° | — | — |
| 2008 | 79° | 64° | 71° | 1.73" | — |
| 2007 | 76° | 52° | 64° | — | — |
| 2006 | 81° | 68° | 74° | — | — |
| 2005 | 90° | 60° | 75° | — | — |
| 2004 | 84° | 57° | 71° | — | — |
| 2003 | 87° | 70° | 78° | 0.05" | — |
| 2002 | 78° | 56° | 67° | — | — |
| 2001 | 82° | 58° | 70° | — | — |
| 2000 | 92° | 66° | 79° | 1.19" | — |
| 1999 | 85° | 63° | 74° | — | — |
| 1998 | 85° | 58° | 71° | — | — |
| 1997 | 76° | 50° | 63° | — | — |
| 1996 | 87° | 58° | 72° | — | — |
| 1995 | 78° | 63° | 70° | — | — |
| 1994 | 87° | 59° | 73° | — | — |
| 1993 | 87° | 66° | 77° | — | — |
| 1992 | 77° | 50° | 64° | — | — |
| 1991 | 95° | 74° | 84° | — | — |
| 1990 | 87° | 66° | 77° | — | — |
| 1989 | 71° | 51° | 61° | 0.25" | — |
| 1988 | 91° | 68° | 80° | 0.56" | — |
| 1987 | 85° | 58° | 71° | 0.1" | — |
| 1986 | 79° | 52° | 65° | — | — |
| 1985 | 78° | 54° | 66° | — | — |
| 1982 | 86° | 69° | 78° | — | — |
| 1981 | 86° | 63° | 74° | — | — |
| 1980 | 84° | 60° | 72° | — | — |
| 1979 | 85° | 62° | 73° | — | — |
| 1978 | 92° | 70° | 81° | — | — |
| 1977 | 78° | 56° | 67° | 0.58" | — |
| 1976 | 84° | 41° | 63° | — | — |
| 1975 | 77° | 53° | 65° | 2.29" | — |
| 1974 | 76° | 69° | 72° | 3.81" | — |
| 1973 | 77° | 50° | 64° | — | — |
| 1972 | 94° | 73° | 83° | — | — |
| 1971 | 85° | — | — | — | — |
53 years of data from ST LOUIS ST LOUIS UNIV