January weather forecastGrasston, MN
January
Weather in January
January, the same as December, in Grasston, Minnesota, is another subzero cold winter month, with an average temperature fluctuating between 5.2°F (-14.9°C) and 18.1°F (-7.7°C).Temperature
Grasston reaches its lowest average temperatures in January, measuring 18.1°F (-7.7°C) at the peak and 5.2°F (-14.9°C) at the lowest.Humidity
With an average relative humidity of 91%, January is the most humid month.Rainfall
The month with the least rainfall is January, when the rain falls for 1.8 days and typically collects 0.47" (12mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 12.3 days. Throughout January, 3.11" (79mm) of snow is accumulated. In Grasston, during the entire year, snow falls for 60.3 days and aggregates up to 22.6" (574mm) of snow.Daylight
In Grasston, the average length of the day in January is 9h and 10min.On the first day of the month, sunrise is at 7:53 am and sunset at 4:38 pm. On the last day of January, sunrise is at 7:35 am and sunset at 5:16 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 2.9h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 1 during January leads to these advisories:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Grasston, MN
- Average high temperature in January: 18.1°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in January: 5.2°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).
Average pressure in January
Grasston, MN
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Grasston, MN
- Average wind speed in January: 7.9mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in January
Grasston, MN
- Average humidity in January: 91%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in January
Grasston, MN
- Average rainfall in January: 0.47"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in January
Grasston, MN
- Average rainfall days in January: 1.8 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in January
Grasston, MN
- Average snowfall in January: 3.11"
The month with the highest snowfall is December (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Grasston, MN
- Average snowfall days in January: 12.3 days
The months with the highest number of snowfall days are January and February (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grasston, MN
- 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: 2h 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: 2h and 54min).
Average sunshine days in January
Grasston, MN
- Average sunshine days in January: 18.1 days
The months with the most sunshine days are January and November (18.1 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in January
Grasston, MN
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in January
Grasston, MN
- Average cloud cover in January: 69
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in January
Grasston, MN
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





