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
January is the month that records the lowest temperatures, with averages ranging from a high of 19.8°F (-6.8°C) to a low of 8.4°F (-13.1°C).Humidity
January and February, with an average relative humidity of 91%, are the most humid months.Rainfall
January is the month with the least rainfall. Rain falls for 2.9 days and accumulates 1.02" (26mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Summit Lake, in January, during 20.3 snowfall days, 7.28" (185mm) of snow is typically accumulated. In Summit Lake, during the entire year, snow falls for 96.4 days and aggregates up to 43.19" (1097mm) of snow.Daylight
In Summit Lake, the average length of the day in January is 9h and 12min.On the first day of the month, sunrise is at 7:36 am and sunset at 4:24 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:01 pm CST.
Sunshine
With an average of 2.2h of sunshine, January has the least sunshine of the year.UV index
January, February, 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 the average person.Note: The maximum UV index, 1 during January, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January in Summit Lake?
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 Summit Lake have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Summit Lake, WI
- Average high temperature in January: 19.8°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in January: 8.4°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in January
Summit Lake, WI
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Summit Lake, WI
- Average wind speed in January: 8.4mph
The windiest months (with the highest average wind speed) are April and November (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in January
Summit Lake, WI
- Average humidity in January: 91%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in January
Summit Lake, WI
- Average rainfall in January: 1.02"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in January
Summit Lake, WI
- Average rainfall days in January: 2.9 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in January
Summit Lake, WI
- Average snowfall in January: 7.28"
The month with the highest snowfall is February (7.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Summit Lake, WI
- Average snowfall days in January: 20.3 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Summit Lake, WI
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 2h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in January
Summit Lake, WI
- Average sunshine days in January: 11.9 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in January
Summit Lake, WI
- 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, November and December (UV index 1).
Average cloud cover in January
Summit Lake, WI
- Average cloud cover in January: 79
The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in January
Summit Lake, WI
- Average visibility in January: 4mi
The months with the highest visibility are May, June and October (6mi).
The months with the lowest visibility are January and February (4mi).
Summit Lake, Wisconsin, USA
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