Weather on September 16
Saint Louis, MO
55 Years of Data
Avg High
80°F
Avg Low
58°F
Warmest
2019
81°F avg
Coldest
2011
55°F avg
About This Date
September 16th in Saint Louis, MO typically brings warm fall weather, with average highs around 80°F and lows near 58°F. Over 53 years of records, the warmest September 16th was in 2019 (81°F average), while the coldest was 2011 (55°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 32% of September 16th dates historically, with the wettest September 16th recording 4.22" of rain. The last decade has been 6.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.7°F warmer on this date compared to 20-30 years ago.
Planning for September 16th in Saint Louis, MO? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 63° | 78° | — | — |
| 2024 | 88° | 63° | 75° | — | — |
| 2023 | 80° | 53° | 67° | — | — |
| 2022 | 86° | 56° | 71° | — | — |
| 2021 | 85° | 54° | 69° | — | — |
| 2020 | 82° | 51° | 67° | — | — |
| 2019warmest | 95° | 67° | 81° | — | — |
| 2018 | 92° | 65° | 78° | — | — |
| 2017 | 91° | — | — | — | — |
| 2016 | 91° | 69° | 80° | 4.22" | — |
| 2015 | 83° | 61° | 72° | — | — |
| 2014 | 78° | 57° | 68° | 0.05" | — |
| 2013 | 84° | 60° | 72° | 0.13" | — |
| 2012 | 70° | 56° | 63° | — | — |
| 2011coldest | 63° | 47° | 55° | — | — |
| 2010 | 83° | 63° | 73° | 0.23" | — |
| 2009 | 78° | 62° | 70° | 0.05" | — |
| 2008 | 64° | 55° | 60° | — | — |
| 2007 | 64° | 49° | 56° | — | — |
| 2006 | 81° | 51° | 66° | — | — |
| 2005 | 75° | 59° | 67° | 1.24" | — |
| 2004 | 84° | 70° | 77° | 0.33" | — |
| 2003 | 81° | 56° | 68° | — | — |
| 2002 | 79° | 64° | 71° | — | — |
| 2001 | 76° | 51° | 63° | — | — |
| 2000 | 71° | 44° | 58° | — | — |
| 1999 | 76° | 51° | 63° | — | — |
| 1998 | 79° | 68° | 73° | 1.42" | — |
| 1997 | 87° | 65° | 76° | — | — |
| 1996 | 60° | 54° | 57° | 2.16" | — |
| 1995 | 83° | 64° | 73° | 1.52" | — |
| 1994 | 87° | 64° | 76° | — | — |
| 1993 | 65° | 54° | 59° | — | — |
| 1992 | 86° | 64° | 75° | — | — |
| 1991 | 92° | 58° | 75° | 0.64" | — |
| 1990 | 79° | 50° | 64° | — | — |
| 1989 | 75° | 52° | 63° | — | — |
| 1988 | 92° | 67° | 79° | — | — |
| 1987 | 87° | 59° | 73° | — | — |
| 1986 | 78° | 58° | 68° | — | — |
| 1985 | 80° | 51° | 66° | — | — |
| 1982 | 66° | 55° | 61° | 0.03" | — |
| 1981 | 78° | 57° | 68° | — | — |
| 1980 | 82° | 62° | 72° | — | — |
| 1979 | — | 45° | — | — | — |
| 1978 | 87° | 53° | 70° | 2.11" | — |
| 1977 | 69° | 60° | 65° | 1.6" | — |
| 1976 | 86° | 56° | 71° | 0.03" | — |
| 1975 | 70° | 54° | 62° | — | — |
| 1974 | 73° | 57° | 65° | 0.05" | — |
| 1973 | 82° | 51° | 67° | — | — |
| 1972 | 91° | 66° | 79° | — | — |
| 1971 | 81° | — | — | 0.99" | — |
53 years of data from ST LOUIS ST LOUIS UNIV