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
Custer experiences its lowest average temperatures in January, reaching a peak of 20.5°F (-6.4°C) and a minimum of 9°F (-12.8°C).Humidity
January is the most humid month, with an average relative humidity of 91%.Rainfall
In Custer, in January, it is raining for 2.8 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 123.2 rainfall days, and 23.54" (598mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In January, in Custer, it is snowing for 14.1 days. Throughout January, 4.69" (119mm) of snow is accumulated. In Custer, during the entire year, snow falls for 59.4 days and aggregates up to 22.83" (580mm) of snow.Daylight
In January, the average length of the day in Custer is 9h and 17min.On the first day of the month, sunrise is at 7:34 am and sunset at 4:28 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:04 pm CST.
Sunshine
With an average of 2.8h of sunshine, January has the least sunshine of the year in Custer.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 low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 1 during January, leads to the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in January?
What is the most humid month in Custer?
What is the average humidity in January in Custer?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Custer have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Custer, WI
- Average high temperature in January: 20.5°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 (20.5°F).
- Average low temperature in January: 9°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in January
Custer, WI
- Average pressure in January: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Custer, WI
- Average wind speed in January: 9.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).
Average humidity in January
Custer, WI
- Average humidity in January: 91%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Custer, WI
- Average rainfall in January: 1.02"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in January
Custer, WI
- Average rainfall days in January: 2.8 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in January
Custer, WI
- Average snowfall in January: 4.69"
The month with the highest snowfall is December (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Custer, WI
- Average snowfall days in January: 14.1 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Custer, WI
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in January
Custer, WI
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is November (17 days).
The months with the least sunshine days are April, May and June (12.7 days).
Average UV index in January
Custer, 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
Custer, WI
- Average cloud cover in January: 70
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in January
Custer, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Custer, Wisconsin, USA
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