Weather on October 12 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
October 12th in Isle Royale National Park (via Houghton, MI) typically brings cool fall weather, with average highs around 56°F and lows near 40°F. Over 50 years of records, the warmest October 12th was in 1995 (69°F average), while the coldest was 1988 (31°F) — a 38°F range across recorded history. Precipitation has occurred on 42% of recorded October 12th dates, with snow falling 4% of the time (heaviest snowfall: 2.5"). The last decade has been 7.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 7.2°F cooler on this date compared to 20-30 years ago.
Planning for October 12th 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 | 63°F | 48°F | 0" | -- |
| 2024 | 57°F | 33°F | 0" | -- |
| 2023 | 52°F | 38°F | 0" | -- |
| 2022 | 66°F | 42°F | 1.3" | -- |
| 2021 | 60°F | 56°F | 0.76" | -- |
| 2020 | 57°F | 43°F | 4.47" | -- |
| 2019 | 40°F | 34°F | 0" | -- |
| 2018 | 38°F | 32°F | 0.05" | -- |
| 2017 | 60°F | 42°F | 0" | -- |
| 2016 | 63°F | 38°F | 0.56" | -- |
| 2015 | 68°F | 49°F | 0.38" | -- |
| 2014 | 63°F | 36°F | 0" | -- |
| 2013 | 66°F | 48°F | 0" | -- |
| 2012 | 45°F | 24°F | 0" | -- |
| 2011 | 71°F | 53°F | 0" | -- |
| 2010 | 65°F | 37°F | 0" | -- |
| 2009 | 36°F | 27°F | 0.03" | -- |
| 2008 | 70°F | 53°F | 0.03" | -- |
| 2007 | 44°F | 34°F | 0.03" | -- |
| 2006 | 35°F | 26°F | 1.3" | -- |
| 2005 | 58°F | 53°F | 0.28" | -- |
| 2004 | 63°F | 36°F | 0" | -- |
| 2003 | 55°F | 44°F | 0.48" | -- |
| 2002 | 68°F | 46°F | 0.74" | 0" |
| 2001 | 62°F | 37°F | 0" | 0" |
| 2000 | 73°F | 42°F | 0" | 0" |
| 1999 | 68°F | 48°F | 0" | 0" |
| 1998 | 65°F | 47°F | 0.13" | 0" |
| 1997 | 77°F | 59°F | 0.15" | 0" |
| 1996 | 64°F | 37°F | 0" | 0" |
| 1995 | 87°F | 51°F | 0" | 0" |
| 1994 | 69°F | 37°F | 0" | 0" |
| 1993 | 36°F | 27°F | 0" | 0" |
| 1992 | 53°F | 41°F | 0" | 0" |
| 1991 | 47°F | 35°F | 0.03" | 0" |
| 1990 | 48°F | 33°F | 0.51" | 0" |
| 1989 | 67°F | 45°F | 0" | 0" |
| 1988 | 36°F | 27°F | 0.03" | 0.1" |
| 1983 | 45°F | 40°F | 1.68" | 0" |
| 1981 | 59°F | 40°F | 0" | 0" |
| 1980 | 38°F | 33°F | 0" | 0" |
| 1979 | 37°F | 31°F | 0.64" | 2.5" |
| 1978 | 49°F | 37°F | 0" | 0" |
| 1977 | 42°F | 33°F | 0.33" | 0" |
| 1976 | 59°F | 47°F | 0" | 0" |
| 1975 | 61°F | 43°F | 0" | 0" |
| 1974 | 45°F | 32°F | 0" | 0" |
| 1973 | 67°F | 46°F | 0" | 0" |
| 1972 | 40°F | 34°F | 0" | 0" |
| 1971 | 49°F | 38°F | 0" | 0" |