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
The lowest temperatures are recorded in January, with averages reaching a high of 19.4°F (-7°C) and a low of 6.3°F (-14.3°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 91%.Rainfall
The month with the least rainfall is January, when the rain falls for 2.7 days and typically collects 0.83" (21mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Altoona, in January, during 13.3 snowfall days, 4.72" (120mm) of snow is typically accumulated. Throughout the year, there are 57.9 snowfall days, and 25.87" (657mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 16min.On the first day of the month, sunrise is at 7:43 am and sunset at 4:35 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:12 pm CST.
Sunshine
In Altoona, the average sunshine in January is 3h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Altoona. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In January, the UV index of 1 transforms into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What time of the year is the coldest in Altoona?
How cold is it in Altoona in January?
What is the most humid month in Altoona?
What is the average humidity in January in Altoona?
What is the driest month in Altoona?
How many days does it rain in January in Altoona?
How many days does it snow in January in Altoona?
How many hours of daylight does Altoona have in January?
What time are sunrise and sunset in January in Altoona?
How long on average sun shines in January in Altoona?
When is the lowest UV index in Altoona?
How high is the UV index in January in Altoona?
Average temperature in January
Altoona, WI
- Average high temperature in January: 19.4°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in January: 6.3°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 (6.3°F).
Average pressure in January
Altoona, WI
- Average pressure in January: 30.12"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Altoona, WI
- Average wind speed in January: 8.6mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in January
Altoona, 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 April (77%).
Average rainfall in January
Altoona, WI
- Average rainfall in January: 0.83"
The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in January
Altoona, WI
- Average rainfall days in January: 2.7 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in January
Altoona, WI
- Average snowfall in January: 4.72"
The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Altoona, WI
- Average snowfall days in January: 13.3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Altoona, 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: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in January
Altoona, WI
- Average sunshine days in January: 17.4 days
The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is June (10 days).
Average UV index in January
Altoona, 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, February, November and December (UV index 1).
Average cloud cover in January
Altoona, WI
- Average cloud cover in January: 69
The months with the most cloud cover are January, February and December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Altoona, WI
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Altoona, Wisconsin, USA
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