February weather forecast and climate
Isle Royale National Park, MI

Calm evening waters at the Rock Harbor in Isle Royale National Park, Michigan
Calm evening waters at the Rock Harbor in Isle Royale National Park, Michigan
February is a cold winter in Isle Royale National Park with average temperatures in the icy zone of 3°F (-16.1°C) to 24.1°F (-4.4°C). The weak sun remains on the horizon for 5 hours a day but is unable to improve either the brightness or heat.
Strong winds blow over the islands, which occasionally disturbs the ice cover over the lake. The lake moderates the effect of the cold to a certain extent, but the water remains icy. The skies are mostly cloudy, but February is the driest month of the year with 1.2" (30.5mm) of rainfall. Isle Royale National Park remains closed in February due to the cold weather.
Average temperature in February - Isle Royale National Park, MI
  • Average high temperature in February: -6°C

The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (-8°C).

  • Average low temperature in February: -17°C

The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is January (-18°C).

Average rainfall in February - Isle Royale National Park, MI
  • Average rainfall in February: 38mm

The wettest month (with the highest rainfall) is September (86mm).
The driest month (with the lowest rainfall) is February (38mm).

Average rainfall days in February - Isle Royale National Park, MI
  • Average rainfall days in February: 8 days

Months with the highest number of rainy days are June and September (13 days).
Months with the lowest number of rainy days are February and April (8 days).

Average sea temperature in February - Isle Royale National Park, MI
  • Average sea temperature in February: 2°C

The best month for swimming (with the highest average sea temperature) is August (13°C).
Coldest months (with the lowest average sea temperature) are January, February, March and April (2°C).

Average daylight in February / Average sunshine in February - Isle Royale National Park, MI
  • Average daylight in February: 10.3h

The month with the longest days is June (Average daylight: 16h).
The month with shortest days is December (Average daylight: 8.5h).

  • Average sunshine in February: 5h

The month with most sunshine is July (Average sunshine: 10h).
Months with least sunshine are November and December (Average sunshine: 3).

Average UV index in February - Isle Royale National Park, MI
  • Average UV index in February: 1

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 1).

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