Weather on April 19 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
April 19th in Isle Royale National Park (via Houghton, MI) typically brings chilly spring weather, with average highs around 48°F and lows near 32°F. Over 50 years of records, the warmest April 19th was in 2005 (60°F average), while the coldest was 2013 (25°F) — a 35°F range across recorded history. Precipitation has occurred on 40% of recorded April 19th dates, with snow falling 6% of the time (heaviest snowfall: 2"). The last decade has been 6.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.1°F cooler on this date compared to 20-30 years ago.
Planning for April 19th 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 | 41°F | 31°F | 0.03" | -- |
| 2024 | 51°F | 36°F | 0" | 0" |
| 2023 | 36°F | 24°F | 0" | -- |
| 2022 | 34°F | 21°F | 0.03" | -- |
| 2021 | 40°F | 26°F | 0.25" | -- |
| 2020 | 36°F | 27°F | 0.03" | -- |
| 2019 | 56°F | 30°F | 0" | -- |
| 2018 | 44°F | 20°F | 0" | -- |
| 2017 | 47°F | 36°F | 0.03" | -- |
| 2016 | 57°F | 32°F | 0" | -- |
| 2015 | 46°F | 33°F | 0.25" | -- |
| 2014 | 42°F | 27°F | 0" | -- |
| 2013 | 30°F | 20°F | 1.52" | -- |
| 2012 | 42°F | 32°F | 0" | -- |
| 2011 | 33°F | 21°F | 0" | -- |
| 2010 | 57°F | 27°F | 0" | -- |
| 2009 | 37°F | 32°F | 0.23" | -- |
| 2008 | 43°F | 36°F | 0.74" | -- |
| 2007 | 55°F | 36°F | 0" | -- |
| 2006 | 55°F | 39°F | 0.03" | -- |
| 2005 | 74°F | 47°F | 0" | -- |
| 2004 | 51°F | 33°F | 0.69" | -- |
| 2003 | 43°F | 30°F | 0.15" | -- |
| 2002 | 40°F | 30°F | 0.23" | -- |
| 2001 | 60°F | 28°F | 0" | 0" |
| 2000 | 48°F | 32°F | 0" | 0" |
| 1999 | 48°F | 29°F | 0" | 0" |
| 1998 | 54°F | 31°F | 0" | 0" |
| 1997 | 46°F | 32°F | 0" | 0" |
| 1996 | 60°F | 36°F | 0.51" | 0" |
| 1995 | 44°F | 32°F | 0.48" | 0.6" |
| 1994 | 75°F | 36°F | 0.2" | 0" |
| 1993 | 41°F | 30°F | 0" | 0" |
| 1992 | 57°F | 38°F | 0.66" | 0" |
| 1991 | 38°F | 31°F | 0" | 0" |
| 1990 | 55°F | 42°F | 0" | 0" |
| 1989 | 51°F | 26°F | 0" | 0" |
| 1988 | 42°F | 27°F | 0" | 0" |
| 1982 | 37°F | 26°F | 0.25" | 2" |
| 1981 | 41°F | 28°F | 0" | 0" |
| 1980 | 61°F | 44°F | 0.1" | 0" |
| 1979 | 60°F | 34°F | 0" | 0" |
| 1978 | 45°F | 33°F | 0" | 0" |
| 1977 | 54°F | 49°F | 0" | 0" |
| 1976 | 46°F | 36°F | 0" | 0" |
| 1975 | 38°F | 33°F | 0.3" | 0.8" |
| 1974 | 48°F | 19°F | 0" | 0" |
| 1973 | 51°F | 41°F | 0" | 0" |
| 1972 | 40°F | 29°F | 0" | 0" |
| 1971 | 48°F | 35°F | 0" | 0" |