Weather on December 29 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High26°F
Avg Low15°F
Warmest202436°F
Coldest1976-6°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

December 29th in Isle Royale National Park (via Houghton, MI) typically brings very cold winter weather, with average highs around 26°F and lows near 15°F. Over 50 years of records, the warmest December 29th was in 2024 (36°F average), while the coldest was 1976 (-6°F) — a 42°F range across recorded history. Precipitation has occurred on 52% of recorded December 29th dates, with snow falling 32% of the time (heaviest snowfall: 13.3"). The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.

Planning for December 29th in Isle Royale? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.

Year by Year History

YearHighLowPrecipSnow
202526°F14°F0"--
202438°F34°F0"--
202338°F24°F0"--
202238°F31°F0"--
202128°F18°F0.18"--
202019°F10°F0.2"--
201935°F33°F1.73"--
201815°F7°F0"--
201715°F-7°F0.25"--
201630°F21°F0.28"--
201524°F21°F0"--
201411°F6°F0"--
201315°F1°F0"--
201226°F14°F0"--
201128°F18°F0.03"--
201044°F22°F0"--
200918°F12°F0"--
200826°F13°F0.05"--
200727°F19°F0.03"--
200632°F27°F0.05"--
200526°F22°F0"--
200426°F18°F0"--
200333°F29°F0"--
200232°F15°F0"0"
200119°F11°F0.61"4.5"
200027°F15°F0.03"--
199936°F11°F0.66"2"
199826°F4°F1.68"8.3"
199727°F19°F0.74"2.7"
199625°F8°F0"0"
199533°F10°F0"0"
199426°F11°F0"0"
199314°F3°F1.63"4"
199224°F17°F0.18"1.1"
199130°F24°F0"0"
199027°F3°F0.33"6.9"
198916°F7°F0.03"0.3"
198810°F5°F0.13"1.3"
198723°F13°F0"0"
198118°F7°F0.48"4.7"
198029°F14°F0.03"0.2"
197935°F30°F0"0"
197829°F24°F1.88"13.3"
197715°F8°F0.2"1"
19762°F-15°F0.13"0.7"
197530°F24°F0"0"
197434°F22°F0"0"
197324°F7°F0.36"5.4"
197224°F19°F0.48"2.5"
197123°F15°F0"0"

December 29 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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