Weather on May 31
Baltimore, MD
55 Years of Data
Avg High
83°F
Avg Low
66°F
Warmest
1991
89°F avg
Coldest
2021
50°F avg
About This Date
May 31st in Baltimore, MD typically brings warm spring weather, with average highs around 83°F and lows near 66°F. Over 55 years of records, the warmest May 31st was in 1991 (89°F average), while the coldest was 2021 (50°F) — a 39°F range across recorded history. Rain or other precipitation has occurred on about 33% of May 31st dates historically, with the wettest May 31st recording 2.57" of rain. The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
Planning for May 31st in Baltimore, MD? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 57° | 66° | 0.41" | — |
| 2024 | 80° | 59° | 70° | — | — |
| 2023 | 81° | 57° | 69° | — | — |
| 2022 | 85° | — | — | — | — |
| 2021coldest | 54° | 47° | 50° | — | — |
| 2020 | 76° | 61° | 68° | — | — |
| 2019 | 85° | 67° | 76° | — | — |
| 2018 | 83° | 68° | 75° | 1.09" | — |
| 2017 | 80° | 64° | 72° | 0.03" | — |
| 2016 | 86° | 71° | 79° | — | — |
| 2015 | 90° | 71° | 80° | — | — |
| 2014 | 78° | 64° | 71° | — | — |
| 2013 | 96° | 75° | 86° | — | — |
| 2012 | 87° | 72° | 79° | — | — |
| 2011 | 97° | 81° | 89° | — | — |
| 2010 | 94° | 72° | 83° | — | — |
| 2009 | 83° | 60° | 71° | 0.25" | — |
| 2008 | 80° | 67° | 73° | 0.86" | — |
| 2007 | 94° | 72° | 83° | — | — |
| 2006 | 87° | 71° | 79° | — | — |
| 2005 | 80° | 60° | 70° | — | — |
| 2004 | 71° | 65° | 68° | 0.64" | — |
| 2003 | 74° | 60° | 67° | 0.53" | — |
| 2002 | 92° | 68° | 80° | 2.13" | — |
| 2001 | 72° | 51° | 61° | — | — |
| 2000 | 68° | 54° | 61° | — | — |
| 1999 | 99° | 75° | 87° | — | — |
| 1998 | 97° | 78° | 87° | — | — |
| 1997 | 86° | 67° | 76° | — | — |
| 1996 | 75° | 54° | 64° | — | — |
| 1995 | 87° | 64° | 76° | — | — |
| 1994 | 85° | 61° | 73° | — | — |
| 1993 | 76° | 59° | 67° | 1.63" | — |
| 1992 | 76° | 60° | 68° | 0.81" | — |
| 1991warmest | 97° | 81° | 89° | — | — |
| 1990 | 78° | 56° | 67° | — | — |
| 1989 | 92° | 72° | 82° | — | — |
| 1988 | 97° | 77° | 87° | — | — |
| 1987 | 95° | 76° | 85° | 1.8" | — |
| 1986 | 96° | 74° | 85° | — | — |
| 1985 | 79° | 62° | 70° | 0.84" | — |
| 1984 | 68° | 50° | 59° | — | — |
| 1983 | 73° | 63° | 68° | — | — |
| 1982 | 90° | 72° | 81° | — | — |
| 1981 | 81° | 69° | 75° | — | — |
| 1980 | 84° | 70° | 77° | 0.18" | — |
| 1979 | 80° | 65° | 72° | 0.89" | — |
| 1978 | 85° | 70° | 77° | — | — |
| 1977 | 70° | 62° | 66° | — | — |
| 1976 | 80° | 64° | 72° | — | — |
| 1975 | 85° | 73° | 79° | 2.18" | — |
| 1974 | 72° | 63° | 67° | 0.1" | — |
| 1973 | 76° | 62° | 69° | — | — |
| 1972 | 82° | 66° | 74° | 2.57" | — |
| 1971 | 83° | 60° | 71° | 1.09" | — |
55 years of data from BALTIMORE CUSTOMS HOUSE