January weather forecastPorterfield, WI
January
Weather in January
January, the same as December, in Porterfield, Wisconsin, is a freezing cold winter month, with an average temperature ranging between min 14.4°F (-9.8°C) and max 23.5°F (-4.7°C).Temperature
In Porterfield, the month of January is known for its lowest average temperatures, reaching a high of 23.5°F (-4.7°C) and a low of 14.4°F (-9.8°C).Humidity
January is the most humid month in Porterfield, Wisconsin, with an average relative humidity of 87%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.6 days and typically collects 1.06" (27mm) of precipitation.Snowfall
Months with snowfall in Porterfield are January through May, October through December. In Porterfield, in January, snow falls for 12.8 days, with typically accumulated 4.53" (115mm) of snow. In Porterfield, during the entire year, snow falls for 56.9 days and aggregates up to 20.63" (524mm) of snow.Daylight
The average length of the day in January in Porterfield, Wisconsin, is 9h and 13min.On the first day of January, sunrise is at 7:29 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:56 pm CST.
Sunshine
The average sunshine in January is 3.4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Porterfield. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 1 in January transforms into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Porterfield, WI
- Average high temperature in January: 23.5°F
The warmest month (with the highest average high temperature) is August (74.5°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in January: 14.4°F
The months with the highest average low temperature are July and August (59.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in January
Porterfield, WI
- Average pressure in January: 30.06"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
Porterfield, WI
- Average wind speed in January: 10.7mph
The windiest months (with the highest average wind speed) are November and December (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in January
Porterfield, WI
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall in January
Porterfield, WI
- Average rainfall in January: 1.06"
The wettest months (with the highest rainfall) are May, June and October (2.8").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in January
Porterfield, WI
- Average rainfall days in January: 4.6 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in January
Porterfield, WI
- Average snowfall in January: 4.53"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Porterfield, WI
- Average snowfall days in January: 12.8 days
The months with the highest number of snowfall days are January and February (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Porterfield, WI
- Average daylight in January: 9h and 12min
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 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in January
Porterfield, WI
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in January
Porterfield, 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 and December (UV index 1).
Average cloud cover in January
Porterfield, WI
- Average cloud cover in January: 64
The month with the most cloud cover is February (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in January
Porterfield, WI
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





