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 coldest temperatures occur during January, when averages reach a peak of 22.1°F (-5.5°C) and a low of 9.3°F (-12.6°C).Humidity
The most humid month in Hillsboro is January, with an average relative humidity of 90%.Rainfall
The month with the least rainfall in Hillsboro is January, when the rain falls for 3.5 days and typically collects 1.1" (28mm) of precipitation.Snowfall
Months with snowfall in Hillsboro are January through May, October through December. In Hillsboro, in January, snow falls for 12.3 days, with typically accumulated 4.88" (124mm) of snow. In Hillsboro, during the entire year, snow falls for 50.2 days and aggregates up to 21.69" (551mm) of snow.Daylight
In Hillsboro, the average length of the day in January is 9h and 23min.On the first day of the month, sunrise is at 7:34 am and sunset at 4:34 pm. On the last day of January, in Hillsboro, sunrise is at 7:19 am and sunset at 5:10 pm CST.
Sunshine
January has the least sunshine of the year in Hillsboro, with an average of 3h of sunshine.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 value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: In January, a daily maximum UV index of 1 leads to the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the coldest month in Hillsboro?
How cold is January in Hillsboro?
What is the most humid month in Hillsboro?
What is the average humidity in January in Hillsboro?
What is the driest month in Hillsboro?
How much does it rain in Hillsboro in January?
How much does it snow in Hillsboro in January?
What is the average length of the day in January in Hillsboro?
What time are sunrise and sunset in January in Hillsboro?
What is the month with the least sunshine in Hillsboro?
How many hours of sunshine does Hillsboro have in January?
What is the month with the lowest UV index in Hillsboro?
How high is the UV index in January in Hillsboro?
Average temperature in January
Hillsboro, WI
- Average high temperature in January: 22.1°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in January: 9.3°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in January
Hillsboro, WI
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Hillsboro, WI
- Average wind speed in January: 9.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in January
Hillsboro, WI
- Average humidity in January: 90%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in January
Hillsboro, WI
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in January
Hillsboro, WI
- Average rainfall days in January: 3.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in January
Hillsboro, WI
- Average snowfall in January: 4.88"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Hillsboro, WI
- Average snowfall days in January: 12.3 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Hillsboro, WI
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in January
Hillsboro, WI
- Average sunshine days in January: 17 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in January
Hillsboro, 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
Hillsboro, WI
- Average cloud cover in January: 68
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Hillsboro, WI
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
Hillsboro, Wisconsin, USA
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