Weather on April 18
Saint Louis, MO
55 Years of Data
Avg High
72°F
Avg Low
48°F
Warmest
2004
76°F avg
Coldest
1983
38°F avg
About This Date
April 18th in Saint Louis, MO typically brings pleasant spring weather, with average highs around 72°F and lows near 48°F. Over 55 years of records, the warmest April 18th was in 2004 (76°F average), while the coldest was 1983 (38°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 31% of April 18th dates historically, with the wettest April 18th recording 3.56" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for April 18th in Saint Louis, MO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 61° | 69° | 0.1" | — |
| 2024 | 85° | 53° | 69° | 2.21" | — |
| 2023 | 74° | 38° | 56° | — | — |
| 2022 | 54° | 36° | 45° | — | — |
| 2021 | 68° | 41° | 55° | — | — |
| 2020 | 62° | 29° | 46° | — | — |
| 2019 | 66° | 47° | 56° | 2.79" | — |
| 2018 | — | 35° | — | — | — |
| 2017 | 71° | 52° | 61° | 0.13" | — |
| 2016 | 81° | 57° | 69° | — | — |
| 2015 | 79° | 61° | 70° | — | — |
| 2014 | 67° | 47° | 57° | — | — |
| 2013 | 84° | 55° | 70° | 3.56" | — |
| 2012 | 76° | 44° | 60° | — | — |
| 2011 | 75° | 59° | 67° | — | — |
| 2010 | 64° | 36° | 50° | — | — |
| 2009 | 74° | 50° | 62° | — | — |
| 2008 | 77° | 58° | 67° | — | — |
| 2007 | 76° | 39° | 57° | — | — |
| 2006 | 64° | 51° | 58° | — | — |
| 2005 | 82° | 52° | 67° | — | — |
| 2004warmest | 87° | 64° | 76° | — | — |
| 2003 | 52° | 47° | 49° | — | — |
| 2002 | 87° | 60° | 74° | — | — |
| 2001 | 54° | 31° | 42° | — | — |
| 2000 | 54° | 41° | 47° | — | — |
| 1999 | 52° | 37° | 44° | 0.05" | — |
| 1998 | 59° | 40° | 49° | — | — |
| 1997 | 55° | 33° | 44° | — | — |
| 1996 | 77° | 56° | 66° | 0.58" | — |
| 1995 | 82° | 65° | 73° | 0.28" | — |
| 1994 | 86° | 53° | 70° | — | — |
| 1993 | 69° | 39° | 54° | 0.03" | — |
| 1992 | 78° | 56° | 67° | 2.39" | — |
| 1991 | 73° | 48° | 61° | — | — |
| 1990 | 58° | 41° | 49° | — | — |
| 1989 | 68° | 37° | 53° | — | — |
| 1988 | 58° | 28° | 43° | 1.78" | — |
| 1987 | 80° | 50° | 65° | — | — |
| 1986 | 68° | 58° | 63° | 0.13" | — |
| 1985 | 87° | 56° | 71° | — | — |
| 1984 | 65° | 37° | 51° | — | — |
| 1983coldest | 45° | 31° | 38° | 0.69" | — |
| 1982 | 75° | 37° | 56° | 1.02" | — |
| 1981 | 87° | 57° | 72° | 0.79" | — |
| 1980 | 71° | 48° | 60° | — | — |
| 1979 | 65° | 50° | 57° | — | — |
| 1978 | 68° | 47° | 57° | 0.58" | — |
| 1977 | 88° | 53° | 70° | — | — |
| 1976 | 84° | 63° | 73° | — | — |
| 1975 | 72° | 51° | 61° | — | — |
| 1974 | 67° | 41° | 54° | — | — |
| 1973 | 71° | 62° | 67° | 0.1" | — |
| 1972 | 83° | 52° | 67° | — | — |
| 1971 | 83° | 60° | 71° | — | — |
55 years of data from ST LOUIS ST LOUIS UNIV