Weather on February 18 at Isle Royale
Isle Royale National Park
Based on 51 years of data from Houghton, MI
Planning Your Visit
February 18th in Isle Royale National Park (via Houghton, MI) typically brings very cold winter weather, with average highs around 28°F and lows near 12°F. Over 51 years of records, the warmest February 18th was in 2017 (41°F average), while the coldest was 1979 (-4°F) — a 45°F range across recorded history. Precipitation has occurred on 35% of recorded February 18th dates, with snow falling 20% of the time (heaviest snowfall: 6.6"). The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
Planning for February 18th 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 |
|---|---|---|---|---|
| 2026 | 33°F | 29°F | 1.12" | -- |
| 2025 | 11°F | 4°F | 0" | -- |
| 2024 | 30°F | 9°F | 0" | -- |
| 2023 | 32°F | 24°F | 0" | -- |
| 2022 | 15°F | -7°F | -- | -- |
| 2021 | 22°F | 2°F | 0" | -- |
| 2020 | 29°F | 12°F | 0.08" | -- |
| 2019 | 12°F | -10°F | 0" | -- |
| 2018 | 28°F | 15°F | 0.25" | -- |
| 2017 | 47°F | 36°F | 0" | -- |
| 2016 | 34°F | 3°F | 0.61" | -- |
| 2015 | 1°F | -10°F | 0" | -- |
| 2014 | 38°F | 11°F | 0" | -- |
| 2013 | 34°F | 19°F | 0" | -- |
| 2012 | 24°F | 10°F | 0" | -- |
| 2011 | 40°F | 14°F | 0" | -- |
| 2010 | 29°F | 20°F | 0" | -- |
| 2009 | 25°F | 6°F | 0" | -- |
| 2008 | 18°F | 9°F | 0.05" | -- |
| 2007 | 32°F | 2°F | 0" | -- |
| 2006 | 11°F | -5°F | 0" | -- |
| 2005 | 16°F | 6°F | 0.15" | -- |
| 2004 | 39°F | 13°F | 0.08" | -- |
| 2003 | 30°F | 19°F | 0.03" | -- |
| 2002 | 51°F | 16°F | 0" | 0" |
| 2001 | 23°F | 8°F | 0" | -- |
| 2000 | 32°F | 3°F | 0" | 0" |
| 1999 | 21°F | 13°F | 0.15" | 3.2" |
| 1998 | 41°F | 34°F | 0" | 0" |
| 1997 | 43°F | 24°F | 0" | 0" |
| 1996 | 17°F | -14°F | 0" | 0" |
| 1995 | 41°F | 20°F | 0" | 0" |
| 1994 | 49°F | 21°F | 0" | 0" |
| 1993 | 9°F | 0°F | 0.86" | 5.7" |
| 1992 | 31°F | 27°F | 0" | 0" |
| 1991 | 28°F | 14°F | 0.1" | 0.7" |
| 1990 | 27°F | 14°F | 0.36" | 1.8" |
| 1989 | 11°F | -3°F | 0.08" | 0.4" |
| 1988 | 42°F | 19°F | 0" | 0" |
| 1982 | 35°F | 21°F | 0" | 0" |
| 1981 | 43°F | 35°F | 0.58" | 0" |
| 1980 | 31°F | 9°F | 0" | 0" |
| 1979 | 6°F | -15°F | 0" | 0" |
| 1978 | 12°F | -4°F | 0" | 0" |
| 1977 | 26°F | 14°F | 0" | 0.8" |
| 1976 | 32°F | 28°F | 0.33" | 1.5" |
| 1975 | 30°F | 24°F | 0.56" | 2.2" |
| 1974 | 31°F | 17°F | 1.07" | 6" |
| 1973 | 27°F | 15°F | 0" | 0" |
| 1972 | 30°F | 11°F | 0.53" | 6.6" |
| 1971 | 38°F | 16°F | 0" | 0" |