January weather forecast
Hillsdale, WI

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Weather in January

January, like December, is another subzero cold winter month in Hillsdale, Wisconsin, with an average temperature varying between 17.6°F (-8°C) and 5.2°F (-14.9°C).

Temperature

Hillsdale records the coldest temperatures in January, averaging a high of 17.6°F (-8°C) and a low of 5.2°F (-14.9°C).

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 92%.

Rainfall

The month with the least rainfall in Hillsdale, Wisconsin, is January, when the rain falls for 2.4 days and typically collects 0.71" (18mm) of precipitation.

Snowfall

Months with snowfall in Hillsdale are January through May, October through December. In Hillsdale, during January, snow falls for 17.3 days and regularly aggregates up to 4.21" (107mm) of snow. Throughout the year, in Hillsdale, Wisconsin, there are 81.4 snowfall days, and 30.12" (765mm) of snow is accumulated.

Daylight

In Hillsdale, the average length of the day in January is 9h and 13min.
On the first day of January, sunrise is at 7:46 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:12 pm CST.

Sunshine

With an average of 2.7h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 1 in January translates into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Enhance your sun protection with tightly woven, yet airy clothing. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Hillsdale?

January tends to be the coldest month, with temperatures averaging a daily high of 17.6°F (-8°C) and a low of 5.2°F (-14.9°C).

How cold is January in Hillsdale?

In January, the average high-temperature and low-temperature in Hillsdale are 17.6°F (-8°C) and 5.2°F (-14.9°C) respectively.

What is the most humid month in Hillsdale?

January and February, with an average relative humidity of 92%, are most humid months in Hillsdale, Wisconsin.

What is the average humidity in January in Hillsdale?

The average relative humidity in January in Hillsdale, Wisconsin, is 92%.

What is the driest month in Hillsdale?

The month with the least rainfall is January, when the rain falls for 2.4 days and typically collects 0.71" (18mm) of precipitation.

How many days does it rain in January in Hillsdale?

In Hillsdale, Wisconsin, in January, during 2.4 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

How much does it snow in Hillsdale in January?

In January, in Hillsdale, it is snowing for 17.3 days. Throughout January, 4.21" (107mm) of snow is accumulated.

How many hours of daylight does Hillsdale have in January?

The average day length in January is 9h and 13min.

When are sunrise and sunset in January in Hillsdale?

In January, on the first day of the month, sunrise is at 7:46 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:12 pm CST.

What is the month with the least sunshine in Hillsdale?

With an average of 2.7h of sunshine, January has the least sunshine of the year in Hillsdale, Wisconsin.

How many hours of sunshine does Hillsdale have in January?

The average sunshine duration in January in Hillsdale is 2.7h.

When is the lowest UV index in Hillsdale?

The months with the lowest UV index in Hillsdale, Wisconsin, are January, February and December, with an average maximum UV index of 1.

How high is the UV index in January in Hillsdale?

In Hillsdale, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
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
Hillsdale, WI

Average temperature in January - Hillsdale, WI
  • Average high temperature in January: 17.6°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (17.6°F).

  • Average low temperature in January: 5.2°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).

Average pressure in January
Hillsdale, WI

Average pressure in January - Hillsdale, 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 (29.88"Hg).

Average wind speed in January
Hillsdale, WI

Average wind speed in January - Hillsdale, WI
  • Average wind speed in January: 8.9mph

The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in January
Hillsdale, WI

Average humidity in January - Hillsdale, WI
  • Average humidity in January: 92%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (76%).

Average rainfall in January
Hillsdale, WI

Average rainfall in January - Hillsdale, WI
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in January
Hillsdale, WI

Average rainfall days in January - Hillsdale, WI
  • Average rainfall days in January: 2.4 days

The month with the highest number of rainy days is June (19.5 days).
The month with the least rainy days is January (2.4 days).

Average snowfall in January
Hillsdale, WI

Average snowfall in January - Hillsdale, WI
  • Average snowfall in January: 4.21"

The month with the highest snowfall is December (6.34").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Hillsdale, WI

Average snowfall days in January - Hillsdale, WI
  • Average snowfall days in January: 17.3 days

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Hillsdale, WI

Average daylight in January / Average sunshine in January - Hillsdale, WI
  • Average daylight in January: 9h and 1min

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: 2h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in January
Hillsdale, WI

Average sunshine days in January - Hillsdale, WI
  • Average sunshine days in January: 14.3 days

The month with the most sunshine days is October (15.3 days).
The month with the least sunshine days is June (8.1 days).

Average UV index in January
Hillsdale, WI

Average UV index in January - Hillsdale, 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 and December (UV index 1).

Average cloud cover in January
Hillsdale, WI

Average cloud cover in January - Hillsdale, WI
  • Average cloud cover in January: 74

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in January
Hillsdale, WI

Average visibility in January - Hillsdale, WI
  • Average visibility in January: 4mi

The months with the highest visibility are May, June and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

Hillsdale, Wisconsin, USA

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