Weather on April 13 at Isle Royale
Isle Royale National Park
Based on 49 years of data from Houghton, MI
Planning Your Visit
April 13th in Isle Royale National Park (via Houghton, MI) typically brings chilly spring weather, with average highs around 47°F and lows near 30°F. Over 49 years of records, the warmest April 13th was in 1998 (70°F average), while the coldest was 1980 (25°F) — a 45°F range across recorded history. Precipitation has occurred on 35% of recorded April 13th dates, with snow falling 8% of the time (heaviest snowfall: 4.1"). The last decade has been 3.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.4°F cooler on this date compared to 20-30 years ago.
Planning for April 13th in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 50°F | 40°F | 0.38" | -- |
| 2023 | 60°F | 42°F | 0" | -- |
| 2022 | 39°F | 34°F | 1.27" | -- |
| 2021 | 43°F | 34°F | 0.13" | -- |
| 2020 | 32°F | 26°F | 0.18" | -- |
| 2019 | 34°F | 28°F | 0.05" | -- |
| 2018 | 39°F | 25°F | 0" | -- |
| 2017 | 61°F | 30°F | 0" | -- |
| 2016 | 44°F | 26°F | 0" | -- |
| 2015 | 61°F | 40°F | 0.61" | -- |
| 2014 | 38°F | 32°F | 0" | -- |
| 2013 | 32°F | 20°F | 0.03" | -- |
| 2012 | 58°F | 29°F | 0.03" | -- |
| 2011 | 51°F | 28°F | 0" | -- |
| 2010 | 51°F | 35°F | 0" | -- |
| 2009 | 42°F | 30°F | 0" | -- |
| 2008 | 38°F | 22°F | 0" | -- |
| 2007 | 43°F | 21°F | 0" | -- |
| 2006 | 59°F | 38°F | 0.03" | -- |
| 2005 | 54°F | 28°F | 0" | -- |
| 2004 | 47°F | 20°F | 0" | -- |
| 2003 | 56°F | 25°F | 0" | -- |
| 2002 | 57°F | 30°F | 0" | -- |
| 2001 | 49°F | 32°F | 0.13" | 0" |
| 2000 | 45°F | 30°F | 0.1" | 0.1" |
| 1999 | 59°F | 28°F | 0" | 0" |
| 1998 | 78°F | 63°F | 0" | 0" |
| 1997 | 41°F | 26°F | 0" | 0" |
| 1996 | 37°F | 27°F | 0.56" | 2.1" |
| 1995 | 43°F | 32°F | 0.74" | 0.9" |
| 1994 | 48°F | 34°F | 0" | 0" |
| 1993 | 42°F | 24°F | 0" | 0" |
| 1992 | 37°F | 13°F | 0" | 0" |
| 1991 | 45°F | 31°F | 0" | 0" |
| 1990 | 51°F | 26°F | 0" | 0" |
| 1989 | 50°F | 23°F | 0.03" | 0" |
| 1988 | 52°F | 33°F | 0" | 0" |
| 1982 | 39°F | 29°F | 0" | 0" |
| 1981 | 54°F | 39°F | 0.58" | 0" |
| 1980 | 31°F | 20°F | 0" | 0" |
| 1979 | 48°F | 35°F | 0" | 0" |
| 1978 | 34°F | 29°F | 0" | 0" |
| 1977 | 53°F | 34°F | 0" | 0" |
| 1976 | 65°F | 39°F | 0" | 0" |
| 1975 | 43°F | 20°F | 0" | 0" |
| 1974 | 37°F | 31°F | 0.05" | 0" |
| 1973 | 48°F | 22°F | 0" | 0" |
| 1972 | 36°F | 31°F | 0.43" | 4.1" |
| 1971 | 34°F | 22°F | 0" | 0" |