Weather on May 31
Saint Louis, MO
55 Years of Data
Avg High
82°F
Avg Low
61°F
Warmest
2018
84°F avg
Coldest
1971
54°F avg
About This Date
May 31st in Saint Louis, MO typically brings warm spring weather, with average highs around 82°F and lows near 61°F. Over 52 years of records, the warmest May 31st was in 2018 (84°F average), while the coldest was 1971 (54°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 31st dates historically, with the wettest May 31st recording 5.08" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for May 31st in Saint Louis, MO? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 60° | 71° | — | — |
| 2024 | 82° | 61° | 71° | — | — |
| 2023 | 90° | 61° | 75° | — | — |
| 2022 | 90° | 70° | 80° | — | — |
| 2021 | 77° | 50° | 64° | — | — |
| 2020 | 81° | 54° | 67° | — | — |
| 2019 | 80° | 61° | 70° | — | — |
| 2018warmest | 90° | 78° | 84° | — | — |
| 2017 | 83° | 58° | 70° | — | — |
| 2016 | 79° | 67° | 73° | 0.41" | — |
| 2015 | 74° | 53° | 63° | 0.43" | — |
| 2014 | 86° | 69° | 78° | 2.01" | — |
| 2013 | 82° | 64° | 73° | 2.01" | — |
| 2012 | 82° | 60° | 71° | — | — |
| 2011 | 88° | 69° | 78° | — | — |
| 2010 | 89° | 67° | 78° | — | — |
| 2009 | 87° | 57° | 72° | 0.05" | — |
| 2008 | 91° | 65° | 78° | 3.91" | — |
| 2007 | 79° | 68° | 73° | 0.08" | — |
| 2006 | 88° | 69° | 78° | — | — |
| 2005 | 76° | 63° | 69° | — | — |
| 2004 | 87° | 60° | 74° | 0.76" | — |
| 2003 | 84° | 60° | 72° | 0.23" | — |
| 2002 | 82° | 66° | 74° | — | — |
| 2001 | 69° | 59° | 64° | 2.64" | — |
| 2000 | 88° | 67° | 77° | — | — |
| 1999 | 77° | 65° | 71° | 0.23" | — |
| 1998 | 87° | 74° | 80° | — | — |
| 1997 | 63° | 59° | 61° | 1.4" | — |
| 1996 | 77° | 47° | 62° | — | — |
| 1995 | 76° | 59° | 67° | — | — |
| 1994 | 84° | 64° | 74° | — | — |
| 1993 | 80° | 56° | 68° | 0.1" | — |
| 1992 | 80° | 54° | 67° | — | — |
| 1991 | 88° | 70° | 79° | — | — |
| 1990 | 77° | 63° | 70° | — | — |
| 1989 | 91° | 68° | 80° | — | — |
| 1988 | 92° | 56° | 74° | — | — |
| 1987 | 91° | 61° | 76° | — | — |
| 1986 | 86° | 65° | 75° | — | — |
| 1985 | 89° | 55° | 72° | — | — |
| 1984 | 79° | 54° | 66° | — | — |
| 1980 | 88° | 67° | 77° | — | — |
| 1979 | 79° | 62° | 70° | — | — |
| 1978 | — | 60° | — | — | — |
| 1977 | 83° | 62° | 72° | 0.41" | — |
| 1976 | 81° | 63° | 72° | 1.7" | — |
| 1975 | 76° | 59° | 67° | 0.66" | — |
| 1974 | 86° | 64° | 75° | 5.08" | — |
| 1973 | 68° | 55° | 62° | 0.03" | — |
| 1972 | 68° | 51° | 60° | — | — |
| 1971coldest | 72° | 37° | 54° | — | — |
52 years of data from ST LOUIS ST LOUIS UNIV