Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The coldest time of the year is January, with temperatures averaging a high of 16.2°F (-8.8°C) and a low of 3.7°F (-15.7°C).Humidity
The months with the highest humidity in Grand Portage are January and February, with an average relative humidity of 90%.Rainfall
The months with the least rainfall in Grand Portage are January and February Rain falls for 4.5 days and accumulates 1.06" (27mm) of rain.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 21.6 days and accumulates 7.76" (197mm) of snow.Ocean temperature
January through April, with an average ocean temperature of 35.6°F (2°C), are months with the coldest seawater.Note: In terms of swimming, this condition is dangerously life-threatening. Water temperatures cause sharp pain and provoke immediate hyperventilation. A specialized swimsuit is compulsory to alleviate thermal damage.
Daylight
The average length of the day in January is 8h and 55min.On the first day of the month, sunrise is at 7:48 am and sunset at 4:16 pm. On the last day of January, in Grand Portage, sunrise is at 7:27 am and sunset at 4:56 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3h of sunshine.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 estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During January, 1 as the daily maximum UV index converts into the following advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Grand Portage?
How cold is January in Grand Portage?
What is the most humid month in Grand Portage?
What is the average humidity in January in Grand Portage?
What is the driest month in Grand Portage?
How many days does it rain in January in Grand Portage?
What is the snowiest month in Grand Portage?
How much does it snow in Grand Portage in January?
What are the months with the coldest ocean in Grand Portage?
What is the water temperature in January in Grand Portage?
How many hours of daylight does Grand Portage have in January?
What time are sunrise and sunset in January in Grand Portage?
What is the month with the least sunshine in Grand Portage?
How long on average sun shines in January in Grand Portage?
When is the lowest UV index in Grand Portage?
What is the UV index reading in January in Grand Portage?
Average temperature in January
Grand Portage, MN
- Average high temperature in January: 16.2°F
The warmest months (with the highest average high temperature) are July and August (70°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in January: 3.7°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is January (3.7°F).
Average pressure in January
Grand Portage, MN
- Average pressure in January: 30.04"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Grand Portage, MN
- Average wind speed in January: 9.1mph
The windiest month (with the highest average wind speed) is December (9.2mph).
The calmest month (with the lowest average wind speed) is June (6.2mph).
Average humidity in January
Grand Portage, MN
- Average humidity in January: 90%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in January
Grand Portage, MN
- Average rainfall in January: 1.06"
The wettest months (with the highest rainfall) are May and October (1.77").
The driest months (with the least rainfall) are January and February (1.06").
Average rainfall days in January
Grand Portage, MN
- Average rainfall days in January: 4.5 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in January
Grand Portage, MN
- Average snowfall in January: 7.76"
The month with the highest snowfall is January (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Grand Portage, MN
- Average snowfall days in January: 21.6 days
The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Grand Portage, MN
- Average sea temperature in January: 36°F
The best month for swimming (with the highest average sea temperature) is August (59°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (36°F).
Average daylight in January /
Average sunshine in January
Grand Portage, MN
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January: 3h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in January
Grand Portage, MN
- Average sunshine days in January: 10.9 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is March (9.8 days).
Average UV index in January
Grand Portage, MN
- Average UV index in January: 1
The month with the highest UV index is July (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
Grand Portage, MN
- Average cloud cover in January: 70
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in January
Grand Portage, MN
- Average visibility in January: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
Grand Portage, Minnesota, USA
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