January weather forecastDellwood, WI
January
Weather in January
January, like December, is another subzero cold winter month in Dellwood, Wisconsin, with temperature in the range of an average low of 9.9°F (-12.3°C) and an average high of 21.7°F (-5.7°C).Temperature
In Dellwood, the lowest average temperatures are observed in January, with a high of 21.7°F (-5.7°C) and a low of 9.9°F (-12.3°C).Humidity
January is the most humid month, with an average relative humidity of 89%.Rainfall
In January, the rain falls for 3.9 days. Throughout January, 1.06" (27mm) of precipitation is accumulated. In Dellwood, during the entire year, the rain falls for 129.4 days and collects up to 26.3" (668mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is January, when snow falls for 12.8 days and typically aggregates up to 4.96" (126mm) of snow.Daylight
In Dellwood, the average length of the day in January is 9h and 20min.On the first day of the month, sunrise is at 7:34 am and sunset at 4:32 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:08 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.2h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 in January converts into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Dellwood, WI
- Average high temperature in January: 21.7°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 (21.7°F).
- Average low temperature in January: 9.9°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in January
Dellwood, WI
- Average pressure in January: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Dellwood, WI
- Average wind speed in January: 9.6mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in January
Dellwood, WI
- Average humidity in January: 89%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Dellwood, WI
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in January
Dellwood, WI
- Average rainfall days in January: 3.9 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in January
Dellwood, WI
- Average snowfall in January: 4.96"
The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Dellwood, WI
- Average snowfall days in January: 12.8 days
The month with the highest number of snowfall days is January (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
Dellwood, WI
- Average daylight in January: 9h and 18min
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 12min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in January
Dellwood, WI
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in January
Dellwood, 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
Dellwood, WI
- Average cloud cover in January: 67
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in January
Dellwood, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).





