Weather on November 15 at Isle Royale
Isle Royale National Park
Based on 49 years of data from Houghton, MI
Planning Your Visit
November 15th in Isle Royale National Park (via Houghton, MI) typically brings chilly fall weather, with average highs around 40°F and lows near 28°F. Over 49 years of records, the warmest November 15th was in 2001 (56°F average), while the coldest was 2019 (21°F) — a 35°F range across recorded history. Precipitation has occurred on 41% of recorded November 15th dates, with snow falling 14% of the time (heaviest snowfall: 2"). The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for November 15th 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 |
|---|---|---|---|---|
| 2025 | 51°F | 39°F | 0" | -- |
| 2024 | 46°F | 31°F | 0" | -- |
| 2023 | 57°F | 33°F | 0" | -- |
| 2022 | 34°F | 19°F | 0.05" | -- |
| 2021 | 35°F | 26°F | 0.53" | -- |
| 2020 | 39°F | 30°F | 1.14" | -- |
| 2019 | 30°F | 12°F | 0" | -- |
| 2018 | 39°F | 25°F | 0" | -- |
| 2017 | 39°F | 29°F | 1.52" | -- |
| 2016 | 45°F | 37°F | 0.15" | -- |
| 2015 | 50°F | 30°F | 0" | -- |
| 2014 | 25°F | 20°F | 0" | -- |
| 2013 | 44°F | 29°F | 0" | -- |
| 2012 | 47°F | 29°F | 0" | -- |
| 2011 | 42°F | 31°F | 0.1" | -- |
| 2010 | 34°F | 30°F | 0.18" | -- |
| 2009 | 42°F | 32°F | 0" | -- |
| 2008 | 33°F | 26°F | 0.05" | -- |
| 2007 | 32°F | 25°F | 0.05" | -- |
| 2006 | 42°F | 30°F | 0" | -- |
| 2005 | 39°F | 32°F | 0.64" | -- |
| 2004 | 49°F | 28°F | 0" | -- |
| 2003 | 44°F | 23°F | 0" | -- |
| 2002 | 36°F | 13°F | 0" | 0" |
| 2001 | 61°F | 51°F | 0" | 0" |
| 2000 | 38°F | 23°F | 0" | 0" |
| 1999 | 40°F | 29°F | 0" | 0" |
| 1998 | 36°F | 33°F | 0.03" | 0.1" |
| 1997 | 29°F | 22°F | 0.05" | 0.5" |
| 1996 | 36°F | 9°F | 0" | 0" |
| 1995 | 36°F | 22°F | 0.03" | 0.2" |
| 1994 | 50°F | 32°F | 0" | 0" |
| 1993 | 40°F | 31°F | 0" | 0" |
| 1992 | 26°F | 21°F | 0" | 0" |
| 1991 | 39°F | 32°F | 0" | 0" |
| 1990 | 57°F | 39°F | 0" | 0" |
| 1989 | 32°F | 24°F | 0.36" | 1.9" |
| 1988 | 43°F | 32°F | 1.98" | 0" |
| 1981 | 58°F | 43°F | 0.03" | 0" |
| 1980 | 33°F | 20°F | 0" | 0" |
| 1979 | 33°F | 18°F | 0.25" | 2" |
| 1978 | 33°F | 27°F | 0" | 0" |
| 1977 | 41°F | 28°F | 0" | 0" |
| 1976 | 36°F | 25°F | 0" | 0" |
| 1975 | 42°F | 26°F | 0" | 0" |
| 1974 | 33°F | 23°F | 0.33" | 1.5" |
| 1973 | 29°F | 26°F | 0.05" | 0.2" |
| 1972 | 29°F | 23°F | 0" | 0" |
| 1971 | 46°F | 40°F | 0.03" | 0" |