January weather forecast
Dellwood, WI

Share

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.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January, marked by an average high-temperature of 21.7°F (-5.7°C) and a low-temperature of 9.9°F (-12.3°C), is the coldest month.

How cold is it in January?

The high-temperature during January is 21.7°F (-5.7°C) and the low-temperature is 9.9°F (-12.3°C).

What is the most humid month?

The most humid month in Dellwood, Wisconsin, is January, with an average relative humidity of 89%.

What is the average humidity in January?

In Dellwood, the average relative humidity in January is 89%.

How much does it rain in January?

In Dellwood, in January, during 3.9 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

What is the snowiest month in Dellwood?

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.

How much does it snow in January?

In January, it is snowing for 12.8 days. Throughout January, 4.96" (126mm) of snow is accumulated.

What is the average length of the day in January?

In January, the average day length is 9h and 20min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:34 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:08 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3.2h of sunshine.

How long on average sun shines in January?

In Dellwood, the average sunshine duration in January is 3.2h.

When is the lowest UV index in Dellwood?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in January?

The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Dellwood, WI

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in January - Dellwood, 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 1min

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 - 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 - 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 - 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 - 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).

Dellwood, Wisconsin, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location