Weather on January 23 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High22°F
Avg Low11°F
Warmest201736°F
Coldest2026-4°F

Based on 51 years of data from Houghton, MI

Planning Your Visit

January 23rd in Isle Royale National Park (via Houghton, MI) typically brings very cold winter weather, with average highs around 22°F and lows near 11°F. Over 51 years of records, the warmest January 23rd was in 2017 (36°F average), while the coldest was 2026 (-4°F) — a 40°F range across recorded history. Precipitation has occurred on 63% of recorded January 23rd dates, with snow falling 45% of the time (heaviest snowfall: 10.5"). The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.

The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.

Planning for January 23rd 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
20262°F-9°F0"--
202512°F8°F0.05"--
202431°F23°F0"--
202329°F19°F0.03"--
202212°F5°F0"--
202120°F13°F0.1"--
202033°F30°F0.23"--
201921°F17°F----
201822°F14°F----
201738°F34°F0"--
201628°F13°F0"--
201536°F28°F0.08"--
20147°F-9°F0"--
20137°F-3°F0"--
201233°F17°F0.69"--
201113°F-3°F----
201034°F28°F0.08"--
200922°F2°F0"--
20089°F-3°F0.03"--
200726°F1°F0"--
200630°F16°F0.03"--
200519°F2°F0"--
20045°F-6°F0"--
200310°F-1°F0.38"2.4"
200232°F15°F0"0"
200135°F29°F0.03"0.5"
200018°F10°F0.81"5.5"
199931°F23°F1.55"6.7"
199827°F19°F0.43"3.3"
199716°F0°F0.05"0.2"
199614°F6°F0"0"
199525°F18°F0.13"0.8"
199425°F12°F0.03"0.1"
199332°F28°F0.71"3.4"
199233°F9°F1.4"7.9"
199119°F4°F0.79"4.7"
199028°F14°F2.44"4.3"
198934°F25°F0"0"
198816°F11°F0.58"2.3"
198219°F-1°F1.65"10.5"
198134°F23°F0"0"
19807°F1°F0.61"2.5"
197918°F11°F1.07"6.7"
197832°F11°F0"0"
197727°F15°F0.76"4.2"
197615°F1°F0.33"3.8"
197523°F10°F0.46"1.8"
197426°F20°F0.64"4.2"
197328°F12°F0.13"1"
197215°F0°F0.08"0.5"
197117°F12°F0.48"5.2"

January 23 at Nearby Parks

Holiday Weather at Isle Royale

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

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