Weather on April 1 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
April 1st in Isle Royale National Park (via Houghton, MI) typically brings cold spring weather, with average highs around 39°F and lows near 24°F. Over 50 years of records, the warmest April 1st was in 2010 (49°F average), while the coldest was 1975 (18°F) — a 31°F range across recorded history. Precipitation has occurred on 38% of recorded April 1st dates, with snow falling 14% of the time (heaviest snowfall: 6"). The last decade has been 7.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 7.3°F cooler on this date compared to 20-30 years ago.
Planning for April 1st in Isle Royale? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 27°F | 18°F | 0" | -- |
| 2025 | 40°F | 2°F | 0" | -- |
| 2023 | 34°F | 22°F | 0" | -- |
| 2022 | 37°F | 27°F | 0" | -- |
| 2021 | 33°F | 9°F | 0" | -- |
| 2020 | 43°F | 30°F | 0" | -- |
| 2019 | 39°F | 19°F | 0" | -- |
| 2018 | 27°F | 16°F | 0.03" | -- |
| 2017 | 50°F | 32°F | 0" | -- |
| 2016 | 35°F | 22°F | 0.1" | -- |
| 2015 | 46°F | 28°F | 0.05" | -- |
| 2014 | 40°F | 16°F | -- | -- |
| 2013 | 27°F | 17°F | 0" | -- |
| 2012 | 52°F | 35°F | 0" | -- |
| 2011 | 45°F | 20°F | 0" | -- |
| 2010 | 62°F | 36°F | 0" | -- |
| 2009 | 38°F | 32°F | 0.3" | -- |
| 2008 | 30°F | 16°F | 0.05" | -- |
| 2007 | 48°F | 33°F | 1.04" | -- |
| 2006 | 38°F | 27°F | 0" | -- |
| 2005 | 42°F | 31°F | 0" | -- |
| 2004 | 41°F | 24°F | 0" | -- |
| 2003 | 40°F | 27°F | 0" | -- |
| 2002 | 32°F | 22°F | 0" | -- |
| 2001 | 43°F | 32°F | 0.1" | 0" |
| 2000 | 52°F | 35°F | 0.05" | 0" |
| 1999 | 53°F | 32°F | 0.13" | 0" |
| 1998 | 42°F | 34°F | 1.22" | 0" |
| 1997 | 60°F | 19°F | 0" | 0" |
| 1996 | 34°F | 16°F | 0" | 0" |
| 1995 | 39°F | 20°F | 0" | 0" |
| 1994 | 45°F | 26°F | 0" | 0" |
| 1993 | 28°F | 18°F | 0" | 0" |
| 1992 | 25°F | 19°F | 0.05" | 0.3" |
| 1991 | 34°F | 27°F | 0" | 0" |
| 1990 | 48°F | 26°F | 0.58" | 1" |
| 1989 | 43°F | 28°F | 0.38" | 1.5" |
| 1988 | 39°F | 23°F | 0" | 0" |
| 1982 | 29°F | 18°F | 0" | 0" |
| 1981 | 41°F | 34°F | 0.03" | 0" |
| 1980 | 46°F | 27°F | 0" | 0" |
| 1979 | 34°F | 19°F | 0" | 0" |
| 1978 | 38°F | 21°F | 0.05" | 0.4" |
| 1977 | 40°F | 22°F | 0.03" | 0.2" |
| 1976 | 36°F | 29°F | 0" | 0" |
| 1975 | 23°F | 12°F | 0" | 0" |
| 1974 | 28°F | 25°F | 0.97" | 6" |
| 1973 | 41°F | 35°F | 0.18" | 0" |
| 1972 | 32°F | 24°F | 0" | 0" |
| 1971 | 39°F | 23°F | 0.2" | 1" |