Weather on May 8 at Isle Royale
Isle Royale National Park
Based on 51 years of data from Houghton, MI
Planning Your Visit
May 8th in Isle Royale National Park (via Houghton, MI) typically brings cool spring weather, with average highs around 59°F and lows near 38°F. Over 51 years of records, the warmest May 8th was in 1993 (66°F average), while the coldest was 2020 (28°F) — a 38°F range across recorded history. Precipitation has occurred on 37% of recorded May 8th dates, with snow falling 4% of the time (heaviest snowfall: 1.5"). The last decade has been 6.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.2°F cooler on this date compared to 20-30 years ago.
Planning for May 8th in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 59°F | 26°F | 0" | -- |
| 2025 | 51°F | 32°F | 0" | -- |
| 2024 | 59°F | 44°F | 0.03" | -- |
| 2023 | 58°F | 41°F | 0" | -- |
| 2022 | 65°F | 42°F | 0" | -- |
| 2021 | 51°F | 28°F | 0" | -- |
| 2020 | 34°F | 22°F | 0.08" | -- |
| 2019 | 43°F | 32°F | 1.32" | -- |
| 2018 | 62°F | 44°F | 0.48" | -- |
| 2017 | 52°F | 27°F | 0" | -- |
| 2016 | 56°F | 34°F | 0" | -- |
| 2015 | 72°F | 44°F | 0" | -- |
| 2014 | 52°F | 37°F | 2.69" | -- |
| 2013 | 78°F | 42°F | 0" | -- |
| 2012 | 55°F | 39°F | 0" | -- |
| 2011 | 66°F | 41°F | 0" | -- |
| 2010 | 43°F | 29°F | 0.05" | -- |
| 2009 | 54°F | 36°F | 0" | -- |
| 2008 | 53°F | 34°F | 0" | -- |
| 2007 | 77°F | 53°F | 0" | -- |
| 2006 | 68°F | 39°F | 0.76" | -- |
| 2005 | 61°F | 44°F | 1.42" | -- |
| 2004 | 62°F | 36°F | 0" | -- |
| 2003 | 62°F | 41°F | 0" | 0" |
| 2002 | 46°F | 31°F | 5.03" | 1.5" |
| 2001 | 63°F | 43°F | 0" | 0" |
| 2000 | 67°F | 45°F | 1.8" | 0" |
| 1999 | 55°F | 41°F | 0.81" | 0" |
| 1998 | 66°F | 44°F | 0" | 0" |
| 1997 | 62°F | 44°F | 1.17" | 0" |
| 1996 | 54°F | 35°F | 0.05" | 0" |
| 1995 | 56°F | 43°F | 0" | 0" |
| 1994 | 73°F | 36°F | 0" | 0" |
| 1993 | 83°F | 50°F | 0" | 0" |
| 1992 | 81°F | 50°F | 0" | 0" |
| 1991 | 55°F | 30°F | 0" | 0" |
| 1990 | 46°F | 39°F | 0.03" | 0" |
| 1989 | 58°F | 35°F | 0" | 0" |
| 1988 | 80°F | 45°F | 1.42" | 0" |
| 1982 | 59°F | 31°F | 0" | 0" |
| 1981 | 67°F | 41°F | 0" | 0" |
| 1980 | 40°F | 34°F | 0.1" | 0.2" |
| 1979 | 61°F | 40°F | 1.57" | 0" |
| 1978 | 53°F | 40°F | 0.51" | 0" |
| 1977 | 53°F | 34°F | 0" | 0" |
| 1976 | 67°F | 30°F | 0" | 0" |
| 1975 | 65°F | 44°F | 0" | 0" |
| 1974 | 52°F | 30°F | 0" | 0" |
| 1973 | 48°F | 42°F | 0.2" | 0" |
| 1972 | 52°F | 28°F | 0" | 0" |
| 1971 | 50°F | 33°F | 0" | 0" |