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Weather on April 17 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High49°F
Avg Low31°F
Warmest197662°F
Coldest201124°F

Based on 51 years of data from Houghton, MI

Planning Your Visit

April 17th in Isle Royale National Park (via Houghton, MI) typically brings chilly spring weather, with average highs around 49°F and lows near 31°F. Over 51 years of records, the warmest April 17th was in 1976 (62°F average), while the coldest was 2011 (24°F) — a 38°F range across recorded history. Precipitation has occurred on 35% of recorded April 17th dates, with snow falling 10% of the time (heaviest snowfall: 1.5"). 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 17th in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202668°F36°F0.94"--
202557°F30°F1.75"--
202453°F39°F2.77"0"
202330°F27°F0.03"--
202235°F26°F0"--
202149°F29°F0"--
202040°F21°F0"--
201953°F33°F0.79"--
201833°F24°F0.08"--
201733°F28°F0.05"--
201676°F48°F0"--
201564°F35°F0"--
201433°F27°F0"--
201333°F29°F0.05"--
201239°F24°F0"--
201127°F22°F0"--
201049°F34°F0"--
200970°F39°F0"--
200850°F34°F0"--
200743°F38°F0"--
200653°F33°F0"--
200566°F40°F0"--
200454°F30°F0"--
200331°F26°F0.89"--
200269°F42°F0.03"--
200142°F26°F0.03"0.1"
200043°F30°F0"0"
199948°F32°F0"0"
199849°F33°F0"0"
199738°F22°F0"0"
199654°F23°F0"0"
199546°F31°F0.05"0.5"
199450°F33°F0"0"
199340°F19°F0"0"
199253°F30°F0"0"
199151°F34°F0.03"0"
199036°F24°F0"0"
198940°F25°F0.3"0.3"
198857°F28°F0.25"0"
198237°F28°F1.14"1.5"
198164°F27°F0"0"
198057°F30°F0"0"
197946°F32°F0"0"
197845°F24°F0"0"
197758°F43°F0"0"
197674°F51°F0"0"
197548°F34°F0.76"0"
197455°F33°F0"0"
197352°F28°F0"0"
197239°F27°F0.03"0.1"
197150°F37°F0"0"

April 17 at Nearby Parks

Holiday Weather at Isle Royale

Official NPS WebsiteVisit nps.gov/isro for park information, alerts, and reservations

Explore More at Isle Royale

See historical weather for other dates

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