Weather on August 31
Baltimore, MD
55 Years of Data
About This Date
August 31st in Baltimore, MD typically brings warm summer weather, with average highs around 86°F and lows near 70°F. Over 55 years of records, the warmest August 31st was in 1998 (90°F average), while the coldest was 1986 (66°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 18% of August 31st dates historically, with the wettest August 31st recording 1.12" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for August 31st in Baltimore, MD? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 58° | 69° | — | — |
| 2024 | 84° | 71° | 78° | — | — |
| 2023 | 84° | 68° | 76° | — | — |
| 2022 | 86° | 71° | 79° | — | — |
| 2021 | 90° | 69° | 79° | 0.47" | — |
| 2020 | 74° | 64° | 69° | — | — |
| 2019 | 87° | 73° | 80° | — | — |
| 2018 | 85° | 72° | 78° | 1.12" | — |
| 2017 | 86° | 68° | 77° | — | — |
| 2016 | 89° | 74° | 81° | 0.34" | — |
| 2015 | 90° | 77° | 83° | — | — |
| 2014 | 94° | 75° | 84° | 0.03" | — |
| 2013 | 95° | 75° | 85° | — | — |
| 2012 | 96° | 75° | 86° | — | — |
| 2011 | 85° | 67° | 76° | — | — |
| 2010 | 96° | 75° | 86° | — | — |
| 2009 | 76° | 64° | 70° | — | — |
| 2008 | 86° | 71° | 79° | — | — |
| 2007 | 88° | 75° | 81° | — | — |
| 2006 | 77° | 67° | 72° | — | — |
| 2005 | 89° | 72° | 80° | — | — |
| 2004 | 85° | 73° | 79° | — | — |
| 2003 | 79° | 66° | 72° | — | — |
| 2002 | 80° | 64° | 72° | 0.03" | — |
| 2001 | 87° | 70° | 78° | 0.66" | — |
| 2000 | 84° | 74° | 79° | 0.02" | — |
| 1999 | 74° | 64° | 69° | — | — |
| 1998warmest | 100° | 81° | 90° | — | — |
| 1997 | 91° | 75° | 83° | — | — |
| 1996 | 87° | 69° | 78° | — | — |
| 1995 | 92° | 80° | 86° | — | — |
| 1994 | 84° | 65° | 74° | — | — |
| 1993 | 91° | 76° | 83° | — | — |
| 1992 | 87° | 71° | 79° | — | — |
| 1991 | 95° | 75° | 85° | — | — |
| 1990 | 86° | 70° | 78° | — | — |
| 1989 | 89° | 69° | 79° | — | — |
| 1988 | 82° | 62° | 72° | — | — |
| 1987 | 79° | 66° | 72° | — | — |
| 1986coldest | 77° | 55° | 66° | — | — |
| 1985 | 80° | 65° | 72° | — | — |
| 1984 | 86° | 70° | 78° | — | — |
| 1983 | 81° | 73° | 77° | — | — |
| 1982 | 87° | 66° | 77° | — | — |
| 1981 | 82° | 70° | 76° | 0.38" | — |
| 1980 | 94° | 76° | 85° | — | — |
| 1979 | 90° | 75° | 82° | — | — |
| 1978 | 83° | 72° | 77° | — | — |
| 1977 | 93° | 76° | 84° | — | — |
| 1976 | 79° | 60° | 69° | — | — |
| 1975 | 74° | 62° | 68° | 0.5" | — |
| 1974 | 86° | 72° | 79° | 0.23" | — |
| 1973 | 99° | 80° | 89° | — | — |
| 1972 | 86° | 70° | 78° | — | — |
| 1971 | 81° | 70° | 75° | — | — |
Baltimore, MD Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Baltimore, MD Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Baltimore, MD Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Baltimore, MD
Most pleasant months in Baltimore, MD: April, May, September, October.
What to expect on August 31st
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
August 31st outlook →