January weather forecastMackinac Island, MI
January
Weather in January
January brings a decidedly winter pattern to Mackinac Island, Michigan as the first month of the year. A characteristic cold, with temperatures dropping to an average lower limit of 14.7°F (-9.6°C), dominates this month. Despite the chill in the air, the island is shrouded in considerable cloud cover, significantly reducing the available daylight. Snowfall is routine, creating a picturesque icy wonderland. The island quietly welcomes the New Year beneath a sweeping blanket of white.Temperature
January is the coldest month in Mackinac Island, exhibiting average temperatures of 23.4°F (-4.8°C) at the peak and 14.7°F (-9.6°C) at the base.Humidity
January and February, with an average relative humidity of 89%, are the most humid months.Rainfall
January is the month with the least rainfall. Rain falls for 5.8 days and accumulates 1.3" (33mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Mackinac Island. The month with the most snowfall is January, when snow falls for 21.9 days and typically aggregates up to 5.91" (150mm) of snow.Ocean temperature
In January, the average ocean temperature is 37.4°F (3°C).Note: During swimming activities, this is a serious life-threatening hazard. Rapid loss of control over breathing impairs cognitive abilities. A specialized swimsuit is essential to limit thermal wastage.
Daylight
In January, the average length of the day is 9h and 9min.On the first day of the month, sunrise is at 8:19 am and sunset at 5:04 pm. On the last day of January, in Mackinac Island, sunrise is at 8:01 am and sunset at 5:42 pm EST.
Sunshine
With an average of 1.9h of sunshine, January has the least sunshine of the year in Mackinac Island.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In January, the maximum UV index of 1 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mackinac Island, MI
- Average high temperature in January: 23.4°F
The warmest month (with the highest average high temperature) is July (71.4°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in January: 14.7°F
The month with the highest average low temperature is August (58.6°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in January
Mackinac Island, MI
- Average pressure in January: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Mackinac Island, MI
- Average wind speed in January: 10.4mph
The windiest months (with the highest average wind speed) are November and December (10.9mph).
The calmest months (with the lowest average wind speed) are June and July (7.6mph).
Average humidity in January
Mackinac Island, MI
- Average humidity in January: 89%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (75%).
Average rainfall in January
Mackinac Island, MI
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is October (2.72").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in January
Mackinac Island, MI
- Average rainfall days in January: 5.8 days
The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in January
Mackinac Island, MI
- Average snowfall in January: 5.91"
The month with the highest snowfall is January (5.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Mackinac Island, MI
- Average snowfall days in January: 21.9 days
The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Mackinac Island, MI
- Average sea temperature in January: 37°F
The best month for swimming (with the highest average sea temperature) is August (61°F).
The coldest months (with the lowest average sea temperature) are February, March and April (36°F).
Average daylight in January /
Average sunshine in January
Mackinac Island, MI
- Average daylight in January: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January: 1h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in January
Mackinac Island, MI
- Average sunshine days in January: 7.1 days
The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is January (7.1 days).
Average UV index in January
Mackinac Island, MI
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in January
Mackinac Island, MI
- Average cloud cover in January: 80
The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in January
Mackinac Island, MI
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
