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 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
In Mason, January is the month with the lowest recorded average temperatures, measuring a high of 19.4°F (-7°C) and a low of 8.6°F (-13°C).Humidity
With an average relative humidity of 91%, January is the most humid month.Rainfall
January is the month with the least rainfall. Rain falls for 3.2 days and accumulates 0.94" (24mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Mason, in January, during 21.8 snowfall days, 6.5" (165mm) of snow is typically accumulated. Throughout the year, there are 99.1 snowfall days, and 37.13" (943mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 5min.On the first day of January, sunrise is at 7:47 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:06 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 2.3h of sunshine.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 1 in January transforms into this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Mason have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Mason, WI
- Average high temperature in January: 19.4°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in January: 8.6°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in January
Mason, WI
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Mason, WI
- Average wind speed in January: 9mph
The windiest month (with the highest average wind speed) is November (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in January
Mason, WI
- Average humidity in January: 91%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in January
Mason, WI
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in January
Mason, WI
- Average rainfall days in January: 3.2 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in January
Mason, WI
- Average snowfall in January: 6.5"
The month with the highest snowfall is December (7.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Mason, WI
- Average snowfall days in January: 21.8 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Mason, WI
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January: 2h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in January
Mason, WI
- Average sunshine days in January: 10.4 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is December (9.8 days).
Average UV index in January
Mason, WI
- 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, November and December (UV index 1).
Average cloud cover in January
Mason, WI
- Average cloud cover in January: 78
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Mason, WI
- 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).
Mason, Wisconsin, USA
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