Weather on July 21
Ann Arbor, MI
55 Years of Data
About This Date
July 21st in Ann Arbor, MI typically brings warm summer weather, with average highs around 84°F and lows near 62°F. Over 55 years of records, the warmest July 21st was in 2011 (87°F average), while the coldest was 2007 (60°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 45% of July 21st dates historically, with the wettest July 21st recording 4.62" of rain. The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
Planning for July 21st in Ann Arbor, MI? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 50° | 64° | — | — |
| 2024 | 84° | 54° | 69° | — | — |
| 2023 | 79° | 55° | 67° | — | — |
| 2022 | 88° | 66° | 77° | 0.66" | — |
| 2021 | 77° | 52° | 64° | — | — |
| 2020 | 85° | 65° | 75° | — | — |
| 2019 | 94° | 69° | 81° | 0.28" | — |
| 2018 | 76° | 65° | 70° | 0.1" | — |
| 2017 | 89° | 63° | 76° | — | — |
| 2016 | 91° | 58° | 74° | 0.79" | — |
| 2015 | 80° | 64° | 72° | — | — |
| 2014 | 85° | 52° | 68° | — | — |
| 2013 | 83° | 63° | 73° | — | — |
| 2012 | 81° | 54° | 67° | — | — |
| 2011warmest | 95° | 79° | 87° | — | — |
| 2010 | 81° | 66° | 73° | — | — |
| 2009 | 78° | 51° | 65° | — | — |
| 2008 | 84° | 61° | 72° | 0.1" | — |
| 2007coldest | 78° | 41° | 60° | — | — |
| 2006 | 81° | 66° | 73° | — | — |
| 2005 | 86° | 67° | 76° | 1.5" | — |
| 2004 | 88° | 63° | 75° | 2.51" | — |
| 2003 | 77° | 62° | 70° | 4.62" | — |
| 2002 | 92° | 56° | 74° | 1.35" | — |
| 2001 | 87° | 63° | 75° | — | — |
| 2000 | 74° | 53° | 63° | — | — |
| 1999 | 83° | 65° | 74° | 2.67" | — |
| 1998 | 96° | 68° | 82° | 0.38" | — |
| 1997 | 84° | 67° | 75° | 0.97" | — |
| 1996 | 75° | 51° | 63° | 0.05" | — |
| 1995 | 83° | 65° | 74° | 0.13" | — |
| 1994 | 88° | 69° | 78° | 0.23" | — |
| 1993 | 77° | 59° | 68° | — | — |
| 1992 | 73° | 54° | 63° | — | — |
| 1991 | 94° | 72° | 83° | 0.18" | — |
| 1990 | 83° | 62° | 72° | 0.08" | — |
| 1989 | 79° | 63° | 71° | 0.03" | — |
| 1988 | 85° | 62° | 73° | — | — |
| 1987 | 95° | 69° | 82° | 0.03" | — |
| 1986 | 84° | 61° | 72° | — | — |
| 1985 | 82° | 68° | 75° | — | — |
| 1984 | 85° | 63° | 74° | 0.05" | — |
| 1983 | 92° | 71° | 81° | — | — |
| 1982 | 81° | 55° | 68° | — | — |
| 1981 | 80° | 65° | 72° | 0.51" | — |
| 1980 | 92° | 71° | 81° | 0.08" | — |
| 1979 | 83° | 60° | 71° | — | — |
| 1978 | 90° | 69° | 79° | 0.99" | — |
| 1977 | 91° | 74° | 82° | — | — |
| 1976 | 85° | 63° | 74° | 1.98" | — |
| 1975 | 82° | 62° | 72° | — | — |
| 1974 | 82° | 53° | 68° | — | — |
| 1973 | 80° | 64° | 72° | 0.53" | — |
| 1972 | 93° | 76° | 84° | — | — |
| 1971 | 82° | 59° | 71° | — | — |
Ann Arbor, MI Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Ann Arbor, MI Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Ann Arbor, MI 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 Ann Arbor, MI
Ann Arbor, MI has no months that meet our "pleasant" threshold — every season has tradeoffs.