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 25.2°F (-3.8°C) to a low of 18.1°F (-7.7°C).Humidity
January and June, with an average relative humidity of 84%, are the most humid months in Sister Bay.Rainfall
January and February are months with the least rain when the rain falls for 5.6 days and typically aggregates up to 1.38" (35mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In Sister Bay, in January, during 14.6 snowfall days, 3.19" (81mm) of snow is typically accumulated. In Sister Bay, during the entire year, snow falls for 62.3 days and aggregates up to 15.83" (402mm) of snow.Daylight
In January, the average length of the day is 9h and 13min.On the first day of January, sunrise is at 7:27 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:53 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.1h of sunshine.UV index
The months with the lowest UV index in Sister Bay are January, March and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 1 during January leads to these instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Sister Bay?
How cold is it in Sister Bay in January?
What is the most humid month in Sister Bay?
What is the average humidity in January in Sister Bay?
What is the driest month in Sister Bay?
How many days does it rain in January in Sister Bay?
How much does it snow in Sister Bay in January?
What is the average length of the day in January in Sister Bay?
What time are sunrise and sunset in January in Sister Bay?
What is the month with the least sunshine in Sister Bay?
How long on average sun shines in January in Sister Bay?
What is the month with the lowest UV index in Sister Bay?
What is the UV index reading in January in Sister Bay?
Average temperature in January
Sister Bay, WI
- Average high temperature in January: 25.2°F
The warmest month (with the highest average high temperature) is August (69.6°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in January: 18.1°F
The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in January
Sister Bay, WI
- 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 (29.91"Hg).
Average wind speed in January
Sister Bay, WI
- Average wind speed in January: 15.1mph
The windiest month (with the highest average wind speed) is December (15.5mph).
The calmest months (with the lowest average wind speed) are June and July (9.6mph).
Average humidity in January
Sister Bay, WI
- Average humidity in January: 84%
The months with the highest relative humidity are January and June (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall in January
Sister Bay, WI
- Average rainfall in January: 1.38"
The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are January and February (1.38").
Average rainfall days in January
Sister Bay, WI
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in January
Sister Bay, WI
- Average snowfall in January: 3.19"
The month with the highest snowfall is February (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Sister Bay, WI
- Average snowfall days in January: 14.6 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sister Bay, 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: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in January
Sister Bay, WI
- Average sunshine days in January: 8.3 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in January
Sister Bay, WI
- Average UV index in January: 1
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in January
Sister Bay, WI
- Average cloud cover in January: 68
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in January
Sister Bay, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Sister Bay, Wisconsin, USA
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