Weather on April 9 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High42°F
Avg Low26°F
Warmest201754°F
Coldest198913°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

April 9th in Isle Royale National Park (via Houghton, MI) typically brings chilly spring weather, with average highs around 42°F and lows near 26°F. Over 50 years of records, the warmest April 9th was in 2017 (54°F average), while the coldest was 1989 (13°F) — a 41°F range across recorded history. Precipitation has occurred on 34% of recorded April 9th dates, with snow falling 14% of the time (heaviest snowfall: 4.3"). 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 9th in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202640°F33°F0"--
202539°F21°F0.03"--
202363°F27°F0"--
202239°F23°F0"--
202157°F44°F0"--
202038°F31°F0.03"--
201938°F29°F0.05"--
201835°F9°F0"--
201763°F46°F0.08"--
201630°F11°F0"--
201533°F30°F0.53"--
201454°F22°F0"--
201333°F27°F0"--
201242°F28°F0"--
201155°F36°F0"--
201043°F27°F0"--
200937°F24°F0"--
200834°F25°F0.18"--
200730°F6°F0"--
200649°F28°F0"--
200561°F37°F0"--
200438°F31°F0"--
200356°F23°F0"--
200236°F30°F0"--
200142°F32°F0"0"
200044°F31°F0.08"0.2"
199954°F33°F0"0"
199849°F32°F0"0"
199732°F7°F0"0"
199645°F20°F0"0"
199534°F19°F0"0"
199446°F36°F0.3"0"
199340°F34°F0.74"0"
199244°F27°F0"0"
199136°F30°F0.13"0.5"
199035°F27°F0.79"4.3"
198923°F4°F0.23"0.9"
198854°F33°F0"0"
198238°F21°F0"0"
198158°F37°F0"0"
198032°F27°F1.22"4.2"
197929°F20°F0.15"0.6"
197831°F25°F0.53"0"
197750°F25°F0"0"
197659°F28°F0"0"
197534°F23°F0"0"
197445°F25°F0"0"
197329°F22°F0"0"
197241°F14°F0.28"1.5"
197143°F29°F0.23"0"

April 9 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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