Weather on October 9
Saint Louis, MO
55 Years of Data
Avg High
73°F
Avg Low
48°F
Warmest
2018
78°F avg
Coldest
2000
40°F avg
About This Date
October 9th in Saint Louis, MO typically brings pleasant fall weather, with average highs around 73°F and lows near 48°F — a 25°F daily swing. Over 52 years of records, the warmest October 9th was in 2018 (78°F average), while the coldest was 2000 (40°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 23% of October 9th dates historically, with the wettest October 9th recording 5.84" of rain. The last decade has been 5.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.5°F warmer on this date compared to 20-30 years ago.
Planning for October 9th in Saint Louis, MO? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 44° | 60° | — | — |
| 2024 | 79° | 42° | 60° | — | — |
| 2023 | 68° | 40° | 54° | — | — |
| 2022 | 72° | 33° | 52° | — | — |
| 2021 | 87° | 63° | 75° | — | — |
| 2020 | 84° | 50° | 67° | — | — |
| 2019 | 78° | 40° | 59° | — | — |
| 2018warmest | 87° | 69° | 78° | — | — |
| 2017 | 81° | 65° | 73° | — | — |
| 2016 | 72° | 48° | 60° | — | — |
| 2015 | 83° | 59° | 71° | — | — |
| 2014 | 72° | 57° | 64° | 1.04" | — |
| 2013 | 76° | 50° | 63° | — | — |
| 2012 | 62° | 38° | 50° | — | — |
| 2011 | 83° | 52° | 67° | — | — |
| 2010 | 83° | 48° | 65° | — | — |
| 2009 | 58° | 51° | 54° | 5.84" | — |
| 2008 | 70° | 46° | 58° | — | — |
| 2007 | 90° | 55° | 72° | 0.97" | — |
| 2006 | 76° | 42° | 59° | — | — |
| 2005 | 61° | 41° | 51° | — | — |
| 2004 | 68° | 60° | 64° | 1.07" | — |
| 2003 | 81° | 64° | 72° | 0.05" | — |
| 2002 | 66° | 55° | 61° | — | — |
| 2001 | 70° | 46° | 58° | — | — |
| 2000coldest | 51° | 29° | 40° | — | — |
| 1999 | 74° | 60° | 67° | 0.25" | — |
| 1998 | 56° | 42° | 49° | — | — |
| 1997 | 81° | 69° | 75° | 0.3" | — |
| 1996 | 56° | 37° | 46° | — | — |
| 1995 | 78° | 45° | 61° | — | — |
| 1994 | 66° | 46° | 56° | 0.2" | — |
| 1993 | 75° | 44° | 60° | 0.51" | — |
| 1992 | 69° | 47° | 58° | — | — |
| 1991 | 79° | 54° | 66° | — | — |
| 1990 | 55° | 41° | 48° | 4.37" | — |
| 1989 | 74° | 36° | 55° | — | — |
| 1988 | 65° | 40° | 52° | 0.03" | — |
| 1987 | 75° | 40° | 57° | — | — |
| 1986 | 65° | 46° | 55° | — | — |
| 1985 | 80° | 53° | 67° | — | — |
| 1982 | 77° | 62° | 70° | 3.05" | — |
| 1980 | 90° | 55° | 72° | — | — |
| 1979 | 90° | 49° | 69° | — | — |
| 1978 | 65° | 39° | 52° | — | — |
| 1977 | 60° | 38° | 49° | — | — |
| 1976 | 59° | 38° | 48° | — | — |
| 1975 | 79° | 52° | 65° | — | — |
| 1974 | 69° | 40° | 54° | — | — |
| 1973 | 85° | 62° | 73° | — | — |
| 1972 | 75° | 45° | 60° | — | — |
| 1971 | 75° | 45° | 60° | — | — |
52 years of data from ST LOUIS ST LOUIS UNIV