Weather on May 22 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
May 22nd in Isle Royale National Park (via Houghton, MI) typically brings mild spring weather, with average highs around 66°F and lows near 44°F. Over 50 years of records, the warmest May 22nd was in 1980 (74°F average), while the coldest was 1979 (41°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 40% of May 22nd dates historically, with the wettest May 22nd recording 2.06" of rain. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for May 22nd in Isle Royale? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 53°F | 43°F | 0" | -- |
| 2024 | 63°F | 45°F | 0.61" | -- |
| 2023 | 70°F | 44°F | 0" | -- |
| 2022 | 52°F | 38°F | 0.03" | -- |
| 2021 | 80°F | 46°F | 0.3" | -- |
| 2020 | 78°F | 53°F | 0" | -- |
| 2019 | 49°F | 44°F | 0.08" | -- |
| 2018 | 75°F | 49°F | 0" | -- |
| 2017 | 53°F | 43°F | 0.08" | -- |
| 2016 | 73°F | 43°F | 0" | -- |
| 2015 | 57°F | 32°F | 0" | -- |
| 2014 | 57°F | 44°F | 0.03" | -- |
| 2013 | 55°F | 40°F | 0.79" | -- |
| 2012 | 62°F | 40°F | 0" | -- |
| 2011 | 75°F | 53°F | 0.05" | -- |
| 2010 | 67°F | 50°F | 0" | -- |
| 2009 | 58°F | 33°F | 0" | -- |
| 2008 | 53°F | 41°F | 0" | -- |
| 2007 | 84°F | 45°F | 0" | -- |
| 2006 | 59°F | 27°F | 0" | -- |
| 2005 | 62°F | 49°F | 2.06" | -- |
| 2004 | 44°F | 38°F | 0.64" | -- |
| 2003 | 60°F | 39°F | 0" | 0" |
| 2002 | 74°F | 39°F | 0" | 0" |
| 2001 | 60°F | 47°F | 1.93" | 0" |
| 2000 | 67°F | 48°F | 0.18" | 0" |
| 1999 | 66°F | 43°F | 0" | 0" |
| 1998 | 60°F | 34°F | 0" | 0" |
| 1997 | 50°F | 32°F | 0" | 0" |
| 1996 | 67°F | 45°F | 0" | 0" |
| 1995 | 56°F | 47°F | 0.81" | 0" |
| 1994 | 84°F | 56°F | 0" | 0" |
| 1993 | 62°F | 37°F | 0" | 0" |
| 1992 | 82°F | 44°F | 1.02" | 0" |
| 1991 | 81°F | 59°F | 0.03" | 0" |
| 1990 | 63°F | 41°F | 0" | 0" |
| 1989 | 80°F | 47°F | 0.03" | 0" |
| 1988 | 64°F | 46°F | 0.18" | 0" |
| 1982 | 62°F | 33°F | 0" | 0" |
| 1981 | 80°F | 51°F | 0" | 0" |
| 1980 | 83°F | 65°F | 0" | 0" |
| 1979 | 45°F | 38°F | 0.94" | 0" |
| 1978 | 69°F | 44°F | 0" | 0" |
| 1977 | 81°F | 50°F | 0.3" | 0" |
| 1976 | 57°F | 37°F | 0" | 0" |
| 1975 | 83°F | 55°F | 0" | 0" |
| 1974 | 73°F | 54°F | 0.05" | 0" |
| 1973 | 67°F | 45°F | 0" | 0" |
| 1972 | 75°F | 46°F | 0" | 0" |
| 1971 | 65°F | 37°F | 0" | 0" |