Weather on April 22 at Isle Royale
Isle Royale National Park
Based on 51 years of data from Houghton, MI
Planning Your Visit
April 22nd in Isle Royale National Park (via Houghton, MI) typically brings cool spring weather, with average highs around 50°F and lows near 31°F. Over 51 years of records, the warmest April 22nd was in 1990 (61°F average), while the coldest was 2015 (26°F) — a 35°F range across recorded history. Precipitation has occurred on 29% of recorded April 22nd dates, with snow falling 6% of the time (heaviest snowfall: 7"). 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 April 22nd in Isle Royale? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 60°F | 31°F | 0" | -- |
| 2025 | 47°F | 30°F | 0" | -- |
| 2024 | 70°F | 29°F | -- | 0" |
| 2023 | 36°F | 30°F | 0.05" | -- |
| 2022 | 41°F | 28°F | 0.56" | -- |
| 2021 | 55°F | 28°F | 0" | -- |
| 2020 | 37°F | 18°F | 0" | -- |
| 2019 | 42°F | 37°F | 2.03" | -- |
| 2018 | 54°F | 24°F | 0" | -- |
| 2017 | 65°F | 31°F | 0" | -- |
| 2016 | 44°F | 28°F | 0" | -- |
| 2015 | 28°F | 24°F | 0.05" | -- |
| 2014 | 38°F | 26°F | 0" | -- |
| 2013 | 38°F | 31°F | 0.25" | -- |
| 2012 | 51°F | 27°F | 0" | -- |
| 2011 | 45°F | 33°F | 0" | -- |
| 2010 | 51°F | 21°F | 0" | -- |
| 2009 | 39°F | 26°F | 0" | -- |
| 2008 | 55°F | 40°F | 0.86" | -- |
| 2007 | 76°F | 45°F | 0.18" | -- |
| 2006 | 56°F | 37°F | 0.23" | -- |
| 2005 | 40°F | 31°F | 0" | -- |
| 2004 | 40°F | 26°F | 0" | -- |
| 2003 | 43°F | 27°F | 0" | -- |
| 2002 | 40°F | 25°F | 0" | -- |
| 2001 | 52°F | 29°F | 0.38" | 0" |
| 2000 | 61°F | 28°F | 0" | 0" |
| 1999 | 50°F | 30°F | 0" | 0" |
| 1998 | 68°F | 35°F | 0" | 0" |
| 1997 | 48°F | 29°F | 0" | 0" |
| 1996 | 55°F | 33°F | 0.41" | 0" |
| 1995 | 49°F | 34°F | 0" | 0" |
| 1994 | 59°F | 28°F | 0" | 0" |
| 1993 | 59°F | 36°F | 0" | 0" |
| 1992 | 39°F | 31°F | 0.33" | 0.7" |
| 1991 | 58°F | 28°F | 0" | 0" |
| 1990 | 71°F | 51°F | 0" | 0" |
| 1989 | 41°F | 30°F | 0" | 0" |
| 1988 | 44°F | 27°F | 0" | 0" |
| 1982 | 51°F | 28°F | 0" | 0" |
| 1981 | 45°F | 33°F | 0.48" | 0" |
| 1980 | 79°F | 41°F | 0" | 0" |
| 1979 | 54°F | 38°F | 0" | 0" |
| 1978 | 49°F | 25°F | 0" | 0" |
| 1977 | 55°F | 39°F | 0" | 0" |
| 1976 | 40°F | 35°F | 1.93" | 0" |
| 1975 | 54°F | 36°F | 0" | 0" |
| 1974 | 49°F | 29°F | 1.04" | 2.1" |
| 1973 | 53°F | 35°F | 0" | 0" |
| 1972 | 40°F | 31°F | 1.52" | 7" |
| 1971 | 49°F | 32°F | 0" | 0" |