December weather forecast
Randolph, WI

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Weather in December

The first month of the winter, December, is still a freezing cold month in Randolph, Wisconsin, with an average temperature varying between 29.1°F (-1.6°C) and 19°F (-7.2°C).

Temperature

As Randolph enters December, the average high-temperature decreases from the a wintry 41.9°F (5.5°C) of November to a subzero cold 29.1°F (-1.6°C). The nighttime temperature in Randolph dips to 19°F (-7.2°C) on average during December.

Humidity

In Randolph, the average relative humidity in December is 85%.

Rainfall

In Randolph, in December, it is raining for 6.4 days, with typically 1.69" (43mm) of accumulated precipitation. In Randolph, during the entire year, the rain falls for 143.2 days and collects up to 29.88" (759mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Randolph. In Randolph, during December, snow falls for 13.5 days and regularly aggregates up to 4.92" (125mm) of snow. Throughout the year, there are 65.4 snowfall days, and 25" (635mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Randolph, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:20 pm. On the last day of December, in Randolph, sunrise is at 7:29 am and sunset at 4:29 pm CST.

Sunshine

In December, the average sunshine in Randolph is 3.6h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 1 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Randolph?

In Randolph, in December, the average high-temperature is 29.1°F (-1.6°C), and the average low-temperature is 19°F (-7.2°C).

What is the average humidity in December in Randolph?

The average relative humidity in December in Randolph is 85%.

How much does it rain in Randolph in December?

In Randolph, Wisconsin, during December, the rain falls for 6.4 days and regularly aggregates up to 1.69" (43mm) of precipitation.

How much does it snow in Randolph in December?

In Randolph, Wisconsin, in December, snow falls for 13.5 days, with typically accumulated 4.92" (125mm) of snow.

What is the month with the shortest days in Randolph?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

How many hours of daylight does Randolph have in December?

The average day length in December is 9h and 1min.

When is the sunrise / sunset in December in Randolph?

On the first day of December, sunrise is at 7:09 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:29 pm CST.

How long on average sun shines in December in Randolph?

In December, the average sunshine duration is 3.6h.

When is the lowest UV index in Randolph?

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 December in Randolph?

In December, the average daily maximum UV index in Randolph is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe 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 December
Randolph, WI

Average temperature in December - Randolph, WI
  • Average high temperature in December: 29.1°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (22.6°F).

  • Average low temperature in December: 19°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).

Average pressure in December
Randolph, WI

Average pressure in December - Randolph, WI
  • Average pressure in December: 30.09"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 December
Randolph, WI

Average wind speed in December - Randolph, WI
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in December
Randolph, WI

Average humidity in December - Randolph, WI
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Randolph, WI

Average rainfall in December - Randolph, WI
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is June (3.94").
The driest month (with the least rainfall) is February (1.42").

Average rainfall days in December
Randolph, WI

Average rainfall days in December - Randolph, WI
  • Average rainfall days in December: 6.4 days

The month with the highest number of rainy days is June (18.1 days).
The months with the least rainy days are January and February (4.3 days).

Average snowfall in December
Randolph, WI

Average snowfall in December - Randolph, WI
  • Average snowfall in December: 4.92"

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

Average snowfall days in December
Randolph, WI

Average snowfall days in December - Randolph, WI
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Randolph, WI
  • Average daylight in December: 9h and 0min

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 December: 3h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in December
Randolph, WI

Average sunshine days in December - Randolph, WI
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is June (9.9 days).

Average UV index in December
Randolph, WI

Average UV index in December - Randolph, WI
  • Average UV index in December: 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 December
Randolph, WI

Average cloud cover in December - Randolph, WI
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Randolph, WI

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

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

Randolph, Wisconsin, USA

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