January weather forecast
Plainfield, WI

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Weather in January

January, like December, is a freezing cold winter month in Plainfield, Wisconsin, with an average temperature varying between 10.4°F (-12°C) and 21.7°F (-5.7°C).

Temperature

Plainfield experiences its lowest average temperatures in January, reaching a peak of 21.7°F (-5.7°C) and a minimum of 10.4°F (-12°C).

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 89%.

Rainfall

The months with the least rainfall are January and February Rain falls for 4.3 days and accumulates 1.22" (31mm) of rain.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 13.3 days and accumulates 5.87" (149mm) of snow.

Daylight

In Plainfield, the average length of the day in January is 9h and 19min.
On the first day of January, sunrise is at 7:33 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:05 pm CST.

Sunshine

With an average of 3.4h of sunshine, January has the least sunshine of the year.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. 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: An average UV index of 1 in January transforms into this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Frequently asked questions

What are the coldest months?

Plainfield experiences its lowest temperatures in January, with an average peak of 21.7°F (-5.7°C) and a low of 10.4°F (-12°C).

How cold is January in Plainfield?

The high-temperature during January is 21.7°F (-5.7°C) and the low-temperature is 10.4°F (-12°C).

What is the most humid month?

The months with the highest humidity are January and February, with an average relative humidity of 89%.

What is the average humidity in January?

In January, the average relative humidity is 89%.

What is the driest month?

January and February are months with the least rain when the rain falls for 4.3 days and typically aggregates up to 1.22" (31mm) of rain.

How many days does it rain in January?

In Plainfield, in January, during 4.3 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 13.3 days and accumulates 5.87" (149mm) of snow.

How much does it snow in January?

In Plainfield, in January, during 13.3 snowfall days, 5.87" (149mm) of snow is typically accumulated.

What is the average length of the day in January?

The average day length in January is 9h and 19min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:33 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:05 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year in Plainfield, with an average of 3.4h of sunshine.

How many hours of sunshine does Plainfield have in January?

In January, the average sunshine duration in Plainfield is 3.4h.

When is the lowest UV index?

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

What is the UV index intensity in January?

In Plainfield, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes 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
Plainfield, WI

Average temperature in January - Plainfield, WI
  • Average high temperature in January: 21.7°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (21.7°F).

  • Average low temperature in January: 10.4°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 (10.4°F).

Average pressure in January
Plainfield, WI

Average pressure in January - Plainfield, WI
  • Average pressure in January: 30.1"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Plainfield, WI

Average wind speed in January - Plainfield, WI
  • Average wind speed in January: 9.7mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in January
Plainfield, WI

Average humidity in January - Plainfield, WI
  • Average humidity in January: 89%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (75%).

Average rainfall in January
Plainfield, WI

Average rainfall in January - Plainfield, WI
  • Average rainfall in January: 1.22"

The wettest month (with the highest rainfall) is May (3.43").
The driest months (with the least rainfall) are January and February (1.22").

Average rainfall days in January
Plainfield, WI

Average rainfall days in January - Plainfield, WI
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (4 days).

Average snowfall in January
Plainfield, WI

Average snowfall in January - Plainfield, WI
  • Average snowfall in January: 5.87"

The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Plainfield, WI

Average snowfall days in January - Plainfield, WI
  • Average snowfall days in January: 13.3 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Plainfield, WI
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 3h and 2min

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 24min).

Average sunshine days in January
Plainfield, WI

Average sunshine days in January - Plainfield, WI
  • Average sunshine days in January: 15.6 days

The month with the most sunshine days is November (16.6 days).
The months with the least sunshine days are April and June (11.9 days).

Average UV index in January
Plainfield, WI

Average UV index in January - Plainfield, WI
  • Average UV index in January: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in January
Plainfield, WI

Average cloud cover in January - Plainfield, WI
  • Average cloud cover in January: 65

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in January
Plainfield, WI

Average visibility in January - Plainfield, WI
  • Average visibility in January: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Plainfield, Wisconsin, USA

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