Weather on February 21 at Isle Royale
Isle Royale National Park
Based on 51 years of data from Houghton, MI
Planning Your Visit
February 21st 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 21st was in 2017 (42°F average), while the coldest was 2015 (4°F) — a 38°F range across recorded history. Precipitation has occurred on 37% of recorded February 21st dates, with snow falling 22% of the time (heaviest snowfall: 7.3"). 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 February 21st 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 | 23°F | 20°F | 0.1" | -- |
| 2025 | 32°F | -6°F | 0" | -- |
| 2024 | 39°F | 30°F | 0" | -- |
| 2023 | 27°F | 12°F | 0.03" | -- |
| 2022 | 14°F | 9°F | -- | -- |
| 2021 | 34°F | 7°F | 0" | -- |
| 2020 | 41°F | 9°F | 0" | -- |
| 2019 | 25°F | 11°F | 0" | -- |
| 2018 | 18°F | 2°F | -- | -- |
| 2017 | 48°F | 36°F | 0.15" | -- |
| 2016 | 27°F | 8°F | 0" | -- |
| 2015 | 16°F | -9°F | 0" | -- |
| 2014 | 32°F | 10°F | 1.68" | -- |
| 2013 | 23°F | 11°F | 0" | -- |
| 2012 | 33°F | 30°F | 0.13" | -- |
| 2011 | 19°F | 14°F | 0" | -- |
| 2010 | 35°F | 7°F | 0" | -- |
| 2009 | 23°F | 4°F | 0" | -- |
| 2008 | 18°F | -3°F | 0.13" | -- |
| 2007 | 38°F | 23°F | 0.41" | -- |
| 2006 | 21°F | 10°F | 0" | -- |
| 2005 | 26°F | 20°F | 0" | -- |
| 2004 | 31°F | 19°F | 0.08" | -- |
| 2003 | 19°F | 7°F | 0" | -- |
| 2002 | 26°F | 16°F | 0" | 0" |
| 2001 | 12°F | 2°F | 0.03" | 0.1" |
| 2000 | 47°F | 16°F | 0" | 0" |
| 1999 | 30°F | 3°F | 0" | 0" |
| 1998 | 34°F | 26°F | 0" | 0" |
| 1997 | 43°F | 17°F | 0" | 0" |
| 1996 | 25°F | 2°F | 0" | 0" |
| 1995 | 25°F | 13°F | 0.08" | 1" |
| 1994 | 22°F | 7°F | 0" | 0" |
| 1993 | 21°F | 5°F | 0" | 0" |
| 1992 | 23°F | 10°F | 0.03" | 0.3" |
| 1991 | 34°F | 28°F | 0.66" | 3.7" |
| 1990 | 43°F | 29°F | 0" | 0" |
| 1989 | 23°F | 9°F | 0" | 0.5" |
| 1988 | 22°F | -3°F | 0.13" | 0.8" |
| 1982 | 27°F | 22°F | 0" | 0" |
| 1981 | 38°F | 29°F | 0" | 0" |
| 1980 | 26°F | 16°F | 0" | 0" |
| 1979 | 27°F | 13°F | 1.32" | 7.3" |
| 1978 | 20°F | 3°F | 0" | 0" |
| 1977 | 30°F | 4°F | 0" | 0" |
| 1976 | 27°F | 16°F | 0.15" | 0.6" |
| 1975 | 41°F | 18°F | 0.03" | 0" |
| 1974 | 28°F | 24°F | 0.2" | 1.5" |
| 1973 | 20°F | 5°F | 0.13" | 0.8" |
| 1972 | 23°F | 4°F | 0.13" | 1" |
| 1971 | 28°F | 9°F | 0" | 0" |