Weather on March 30 at Isle Royale
Isle Royale National Park
Based on 51 years of data from Houghton, MI
Planning Your Visit
March 30th in Isle Royale National Park (via Houghton, MI) typically brings chilly spring weather, with average highs around 40°F and lows near 25°F. Over 51 years of records, the warmest March 30th was in 2010 (47°F average), while the coldest was 1975 (15°F) — a 32°F range across recorded history. Precipitation has occurred on 35% of recorded March 30th dates, with snow falling 10% of the time (heaviest snowfall: 6"). The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for March 30th 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 |
|---|---|---|---|---|
| 2026 | 42°F | 29°F | 0" | -- |
| 2025 | 32°F | 28°F | 0.38" | -- |
| 2024 | 37°F | 31°F | 0.05" | -- |
| 2023 | 38°F | 18°F | 0" | -- |
| 2022 | 37°F | 31°F | 1.9" | -- |
| 2021 | 55°F | 29°F | 0" | -- |
| 2020 | 38°F | 30°F | 0" | -- |
| 2019 | 33°F | 19°F | 0.03" | -- |
| 2018 | 26°F | 8°F | 0" | -- |
| 2017 | 38°F | 31°F | 0" | -- |
| 2016 | 50°F | 32°F | 0.56" | -- |
| 2015 | 42°F | 26°F | 0.03" | -- |
| 2014 | 50°F | 21°F | 0" | -- |
| 2013 | 38°F | 24°F | 0.51" | -- |
| 2012 | 34°F | 30°F | 0" | -- |
| 2011 | 40°F | 13°F | 0" | -- |
| 2010 | 62°F | 32°F | 0" | -- |
| 2009 | 33°F | 14°F | 0" | -- |
| 2008 | 46°F | 27°F | 0" | -- |
| 2007 | 36°F | 31°F | 0" | -- |
| 2006 | 50°F | 36°F | 0.25" | -- |
| 2005 | 49°F | 39°F | 1.65" | -- |
| 2004 | 32°F | 21°F | 0" | -- |
| 2003 | 30°F | 3°F | 0" | -- |
| 2002 | 46°F | 28°F | 0" | 0" |
| 2001 | 44°F | 30°F | 0" | 0" |
| 2000 | 46°F | 22°F | 0" | 0" |
| 1999 | 53°F | 30°F | 0" | 0" |
| 1998 | 49°F | 35°F | 3.15" | 0" |
| 1997 | 36°F | 20°F | 0" | 0" |
| 1996 | 34°F | 22°F | 0.41" | 1.5" |
| 1995 | 32°F | 21°F | 0" | 0" |
| 1994 | 40°F | 10°F | 0" | 0" |
| 1993 | 50°F | 32°F | 0" | 0" |
| 1992 | 39°F | 28°F | 0" | 0" |
| 1991 | 37°F | 10°F | 0" | 0" |
| 1990 | 51°F | 29°F | 0" | 0" |
| 1989 | 32°F | 26°F | 0.1" | 0.6" |
| 1988 | 37°F | 25°F | 0" | 0" |
| 1982 | 45°F | 33°F | 0.33" | 0" |
| 1981 | 37°F | 33°F | 0" | 0" |
| 1980 | 42°F | 24°F | 0" | 0" |
| 1979 | 37°F | 31°F | 0.38" | 0" |
| 1978 | 50°F | 27°F | 0" | 0" |
| 1977 | 45°F | 25°F | 0" | 0" |
| 1976 | 36°F | 32°F | 0.84" | 0" |
| 1975 | 19°F | 10°F | 0.74" | 3.6" |
| 1974 | 34°F | 29°F | 0.05" | 0.2" |
| 1973 | 44°F | 29°F | 0" | 0" |
| 1972 | 32°F | 28°F | 0.89" | 6" |
| 1971 | 42°F | 14°F | 0" | 0" |