Weather on May 6 at Isle Royale
Isle Royale National Park
MIMidwest800 ft elevation
Avg High56°F
Avg Low36°F
Warmest200073°F
Coldest198927°F
Based on 51 years of data from Houghton, MI
Planning Your Visit
May 6th in Isle Royale National Park (via Houghton, MI) typically brings cool spring weather, with average highs around 56°F and lows near 36°F. Over 51 years of records, the warmest May 6th was in 2000 (73°F average), while the coldest was 1989 (27°F) — a 46°F range across recorded history. Precipitation has occurred on 27% of recorded May 6th dates, with snow falling 2% of the time (heaviest snowfall: 1.4"). The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.
Planning for May 6th in Isle Royale? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 42°F | 35°F | 0" | -- |
| 2025 | 78°F | 41°F | 0" | -- |
| 2024 | 63°F | 37°F | 0" | -- |
| 2023 | 47°F | 42°F | 1.07" | -- |
| 2022 | 60°F | 39°F | 0" | -- |
| 2021 | 51°F | 29°F | 0.03" | -- |
| 2020 | 55°F | 30°F | 0" | -- |
| 2019 | 46°F | 28°F | 0" | -- |
| 2018 | 59°F | 39°F | 0" | -- |
| 2017 | 49°F | 34°F | 0" | -- |
| 2016 | 89°F | 44°F | 0.15" | -- |
| 2015 | 69°F | 38°F | 0" | -- |
| 2014 | 46°F | 29°F | 0" | -- |
| 2013 | 61°F | 32°F | 0" | -- |
| 2012 | 49°F | 41°F | 0" | -- |
| 2011 | 46°F | 36°F | 0" | -- |
| 2010 | 48°F | 33°F | 0" | -- |
| 2009 | 69°F | 50°F | 0.05" | -- |
| 2008 | 58°F | 37°F | 0" | -- |
| 2007 | 69°F | 41°F | 0" | -- |
| 2006 | 49°F | 30°F | 0.08" | -- |
| 2005 | 62°F | 44°F | 0.1" | -- |
| 2004 | 53°F | 33°F | 0" | -- |
| 2003 | 59°F | 39°F | 0" | 0" |
| 2002 | 48°F | 39°F | 0.15" | 0" |
| 2001 | 58°F | 46°F | 0.08" | 0" |
| 2000 | 88°F | 59°F | 0" | 0" |
| 1999 | 61°F | 51°F | 1.5" | 0" |
| 1998 | 74°F | 39°F | 0" | 0" |
| 1997 | 54°F | 30°F | 0" | 0" |
| 1996 | 58°F | 27°F | 0" | 0" |
| 1995 | 62°F | 36°F | 0" | 0" |
| 1994 | 51°F | 35°F | 0" | 0" |
| 1993 | 68°F | 47°F | 0" | 0" |
| 1992 | 68°F | 28°F | 0" | 0" |
| 1991 | 43°F | 33°F | 2.24" | 1.4" |
| 1990 | 64°F | 33°F | 0" | 0" |
| 1989 | 30°F | 25°F | 0" | 0" |
| 1988 | 51°F | 39°F | 0" | 0" |
| 1982 | 55°F | 38°F | 1.24" | 0" |
| 1981 | 56°F | 30°F | 0" | 0" |
| 1980 | 49°F | 36°F | 0.15" | 0" |
| 1979 | 37°F | 32°F | 0.48" | 0" |
| 1978 | 52°F | 34°F | 0" | 0" |
| 1977 | 53°F | 30°F | 0" | 0" |
| 1976 | 42°F | 29°F | 0" | 0" |
| 1975 | 59°F | 36°F | 0" | 0" |
| 1974 | 34°F | 26°F | 0" | 0" |
| 1973 | 66°F | 43°F | 0" | 0" |
| 1972 | 43°F | 34°F | 0.2" | 0" |
| 1971 | 60°F | 35°F | 0" | 0" |
May 6 at Nearby Parks
Holiday Weather at Isle Royale
Official NPS WebsiteVisit nps.gov/isro for park information, alerts, and reservations
↗