Weather on August 19
Saint Louis, MO
55 Years of Data
Avg High
88°F
Avg Low
67°F
Warmest
1972
90°F avg
Coldest
1977
66°F avg
About This Date
August 19th in Saint Louis, MO typically brings warm summer weather, with average highs around 88°F and lows near 67°F. Over 50 years of records, the warmest August 19th was in 1972 (90°F average), while the coldest was 1977 (66°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 26% of August 19th dates historically, with the wettest August 19th recording 3.1" 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 August 19th in Saint Louis, MO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 75° | 85° | 0.33" | — |
| 2024 | 86° | 62° | 74° | — | — |
| 2023 | 88° | 62° | 75° | — | — |
| 2022 | 87° | 59° | 73° | — | — |
| 2021 | 87° | 65° | 76° | — | — |
| 2020 | 81° | 59° | 70° | — | — |
| 2019 | 95° | 69° | 82° | 0.48" | — |
| 2018 | 86° | 73° | 80° | — | — |
| 2017 | — | 74° | — | 0.03" | — |
| 2016 | 91° | 72° | 81° | — | — |
| 2015 | 90° | 67° | 78° | 3.1" | — |
| 2014 | 85° | 72° | 78° | — | — |
| 2013 | 84° | 65° | 74° | — | — |
| 2012 | 83° | 67° | 75° | — | — |
| 2011 | 96° | 69° | 83° | 0.43" | — |
| 2010 | 88° | 70° | 79° | — | — |
| 2009 | 83° | 70° | 76° | — | — |
| 2008 | 83° | 58° | 70° | — | — |
| 2007 | 92° | 71° | 81° | 0.03" | — |
| 2006 | 92° | 72° | 82° | 1.5" | — |
| 2005 | 93° | 72° | 82° | 0.64" | — |
| 2004 | 93° | 68° | 81° | — | — |
| 2003 | 92° | 73° | 82° | — | — |
| 2002 | 79° | 67° | 73° | 0.94" | — |
| 2001 | 93° | 62° | 78° | — | — |
| 2000 | 76° | 62° | 69° | — | — |
| 1999 | 82° | 65° | 73° | — | — |
| 1998 | 87° | 69° | 78° | 0.1" | — |
| 1997 | 79° | 64° | 71° | 1.98" | — |
| 1996 | 90° | 67° | 78° | — | — |
| 1995 | 98° | 78° | 88° | — | — |
| 1994 | 87° | 63° | 75° | — | — |
| 1993 | 95° | 72° | 83° | 0.97" | — |
| 1992 | 84° | 64° | 74° | — | — |
| 1991 | 84° | 59° | 72° | — | — |
| 1990 | 95° | 68° | 82° | — | — |
| 1989 | 80° | 67° | 73° | — | — |
| 1988 | 85° | 68° | 76° | 0.58" | — |
| 1987 | 86° | 60° | 73° | — | — |
| 1981 | 79° | 58° | 68° | — | — |
| 1980 | 90° | 70° | 80° | — | — |
| 1979 | 93° | 67° | 80° | — | — |
| 1978 | 97° | 71° | 84° | — | — |
| 1977coldest | 78° | 54° | 66° | — | — |
| 1976 | 84° | 54° | 69° | — | — |
| 1975 | 89° | 67° | 78° | — | — |
| 1974 | 89° | 62° | 76° | — | — |
| 1973 | 84° | 63° | 73° | — | — |
| 1972warmest | 101° | 79° | 90° | — | — |
| 1971 | 90° | 61° | 75° | — | — |
50 years of data from ST LOUIS ST LOUIS UNIV