December weather forecast
Trego, WI

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Weather in December

The first month of the winter, December, is still a freezing cold month in Trego, Wisconsin, with temperature in the range of an average high of 23.4°F (-4.8°C) and an average low of 12.2°F (-11°C).

Temperature

Transition into December marks a drop in the average high-temperature, moving from a wintry 37.6°F (3.1°C) in November to a subzero cold 23.4°F (-4.8°C). Trego's average low-temperature is measured at a frigid cold 12.2°F (-11°C) during December.

Humidity

In December, the average relative humidity is 89%.

Rainfall

In December, in Trego, the rain falls for 3.5 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. Throughout the year, in Trego, there are 118.5 rainfall days, and 21.1" (536mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Trego. December is the month with the most snowfall. Snow falls for 14 days and accumulates 6.42" (163mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 42min of daylight.
On the first day of December, sunrise is at 7:29 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:32 pm CST.

Sunshine

In December, the average sunshine in Trego, Wisconsin, is 2.8h.

UV index

The months with the lowest UV index in Trego are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Trego?

The high-temperature, in December, in Trego, is 23.4°F (-4.8°C), while the low-temperature averages to 12.2°F (-11°C).

What is the average humidity in December in Trego?

The average relative humidity in December is 89%.

How much does it rain in Trego in December?

In December, in Trego, the rain falls for 3.5 days. Throughout December, 1.18" (30mm) of precipitation is accumulated.

When does it snow the most in Trego?

The month with the most snowfall in Trego, Wisconsin, is December, when snow falls for 14 days and typically aggregates up to 6.42" (163mm) of snow.

How many days does it snow in December in Trego?

In Trego, during December, snow falls for 14 days and regularly aggregates up to 6.42" (163mm) of snow.

What is the month with the shortest days in Trego?

December has the shortest days of the year in Trego, with an average of 8h and 42min of daylight.

What is the average length of the day in December in Trego?

In Trego, Wisconsin, the average day length in December is 8h and 44min.

When are sunrise and sunset in December in Trego?

On the first day of December in Trego, Wisconsin, sunrise is at 7:29 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:32 pm CST.

How many hours of sunshine does Trego have in December?

In December, the average sunshine duration is 2.8h.

What are the months with the lowest UV index in Trego?

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

What is the UV index intensity in December in Trego?

In Trego, Wisconsin, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's 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 December
Trego, WI

Average temperature in December - Trego, WI
  • Average high temperature in December: 23.4°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (17.4°F).

  • Average low temperature in December: 12.2°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).

Average pressure in December
Trego, WI

Average pressure in December - Trego, WI
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Trego, WI

Average wind speed in December - Trego, WI
  • Average wind speed in December: 8.1mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in December
Trego, WI

Average humidity in December - Trego, WI
  • Average humidity in December: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (73%).

Average rainfall in December
Trego, WI

Average rainfall in December - Trego, WI
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in December
Trego, WI

Average rainfall days in December - Trego, WI
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.4 days).

Average snowfall in December
Trego, WI

Average snowfall in December - Trego, WI
  • Average snowfall in December: 6.42"

The month with the highest snowfall is December (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Trego, WI

Average snowfall days in December - Trego, WI
  • Average snowfall days in December: 14 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Trego, WI

Average daylight in December / Average sunshine in December - Trego, WI
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in December
Trego, WI

Average sunshine days in December - Trego, WI
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in December
Trego, WI

Average UV index in December - Trego, WI
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in December
Trego, WI

Average cloud cover in December - Trego, WI
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Trego, WI

Average visibility in December - Trego, WI
  • Average visibility in December: 5mi

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

Trego, Wisconsin, USA

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