Weather on December 17 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
December 17th in Isle Royale National Park (via Houghton, MI) typically brings very cold winter weather, with average highs around 27°F and lows near 15°F. Over 50 years of records, the warmest December 17th was in 1977 (36°F average), while the coldest was 1975 (7°F) — a 29°F range across recorded history. Precipitation has occurred on 52% of recorded December 17th dates, with snow falling 30% of the time (heaviest snowfall: 7.5"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 17th in Isle Royale? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 40°F | 24°F | 0" | -- |
| 2024 | 34°F | 27°F | 0" | -- |
| 2023 | 40°F | 32°F | 0.15" | -- |
| 2022 | 32°F | 18°F | 0.15" | -- |
| 2021 | 20°F | 17°F | 0.05" | -- |
| 2020 | 29°F | 14°F | 0" | -- |
| 2019 | 23°F | 3°F | 0.03" | -- |
| 2018 | 30°F | 11°F | 0" | -- |
| 2017 | 26°F | 20°F | 0" | -- |
| 2016 | 16°F | 4°F | 0" | -- |
| 2015 | 35°F | 23°F | 0.43" | -- |
| 2014 | 24°F | 17°F | 0.1" | -- |
| 2013 | 35°F | 16°F | 0" | -- |
| 2012 | 32°F | 27°F | 0.05" | -- |
| 2011 | 27°F | -3°F | 0" | -- |
| 2010 | 26°F | 20°F | 0" | -- |
| 2009 | 22°F | 2°F | 0" | -- |
| 2008 | 12°F | 2°F | 0.05" | -- |
| 2007 | 28°F | 12°F | 0" | -- |
| 2006 | 36°F | 27°F | 0" | -- |
| 2005 | 20°F | 13°F | 0.08" | -- |
| 2004 | 24°F | 11°F | 0" | -- |
| 2003 | 23°F | 21°F | 0" | -- |
| 2002 | 33°F | 22°F | 0" | 0" |
| 2001 | 39°F | 34°F | 0.03" | 0" |
| 2000 | 31°F | 13°F | 0.74" | 7.5" |
| 1999 | 15°F | 11°F | 0.08" | 1.5" |
| 1998 | 33°F | 21°F | 0.03" | 0.1" |
| 1997 | 38°F | 19°F | 0" | 0" |
| 1996 | 30°F | 16°F | 0" | 0" |
| 1995 | 26°F | 11°F | 0" | 0" |
| 1994 | 37°F | 30°F | 0.08" | 0.5" |
| 1993 | 34°F | 27°F | 0" | 0" |
| 1992 | 28°F | 18°F | 0.41" | 0.4" |
| 1991 | 24°F | 7°F | 0.61" | 2.9" |
| 1990 | 32°F | 22°F | 0.15" | 0.5" |
| 1989 | 20°F | 9°F | 0.15" | 2.2" |
| 1988 | 16°F | 9°F | 0.46" | 4.9" |
| 1987 | 23°F | 20°F | 0" | 0" |
| 1981 | 18°F | 13°F | 0.86" | 4.4" |
| 1980 | 35°F | 12°F | 0.84" | 4" |
| 1979 | 14°F | 3°F | 0.43" | 6.1" |
| 1978 | 28°F | 13°F | 0" | 0" |
| 1977 | 37°F | 35°F | 0.1" | 0" |
| 1976 | 32°F | 12°F | 0" | 0" |
| 1975 | 14°F | 0°F | 0.76" | 3.9" |
| 1974 | 23°F | 19°F | 0.18" | 1.3" |
| 1973 | 16°F | 2°F | 0" | 0" |
| 1972 | 22°F | 4°F | 0" | 0" |
| 1971 | 19°F | 13°F | 0.94" | 6.3" |