December weather forecast
Webster, IN

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Weather in December

The first month of the winter, December, is also an icy month in Webster, Indiana, with an average temperature varying between 37.8°F (3.2°C) and 27.5°F (-2.5°C).

Temperature

Stepping into December, Webster observes a temperature decline, with the average high falling from November's frosty 48.4°F (9.1°C) to an icy 37.8°F (3.2°C). Webster, during the nights of December, experiences an average temperature drop to a subzero cold 27.5°F (-2.5°C).

Humidity

In Webster, the average relative humidity in December is 83%.

Rainfall

In Webster, during December, the rain falls for 9.1 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Webster, during the entire year, the rain falls for 147.8 days and collects up to 21.3" (541mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Webster, Indiana. In Webster, in December, snow falls for 6.5 days, with typically accumulated 1.22" (31mm) of snow. Throughout the year, in Webster, Indiana, there are 30.2 snowfall days, and 7.01" (178mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:42 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:25 pm EST.

Sunshine

The average sunshine in December is 4h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 1 in December translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Webster?

In Webster, 37.8°F (3.2°C) is the average high-temperature and 27.5°F (-2.5°C) is the average low-temperature during December. In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 86°F (30°C).

What is the average humidity in December in Webster?

The average relative humidity in December in Webster, Indiana, is 83%.

How much does it rain in Webster in December?

In December, in Webster, Indiana, the rain falls for 9.1 days. Throughout December, 1.34" (34mm) of precipitation is accumulated.

How much does it snow in Webster in December?

In Webster, Indiana, in December, during 6.5 snowfall days, 1.22" (31mm) of snow is typically accumulated.

What is the month with the shortest days in Webster?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Webster.

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

The average day length in December in Webster, Indiana, is 9h and 24min.

When are sunrise and sunset in December in Webster?

In December, on the first day of the month, sunrise is at 7:42 am and sunset at 5:15 pm. On the last day of the month, in Webster, sunrise is at 8:01 am and sunset at 5:25 pm EST.

How many hours of sunshine does Webster have in December?

In December, the average sunshine duration in Webster is 4h.

When is the lowest UV index in Webster?

December is the month with the lowest UV index in Webster, Indiana, with an average maximum UV index of 1.

What is the UV index reading in December in Webster?

In Webster, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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 December
Webster, IN

Average temperature in December - Webster, IN
  • Average high temperature in December: 37.8°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in December
Webster, IN

Average pressure in December - Webster, IN
  • Average pressure in December: 30.11"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Webster, IN

Average wind speed in December - Webster, IN
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Webster, IN

Average humidity in December - Webster, IN
  • Average humidity in December: 83%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Webster, IN

Average rainfall in December - Webster, IN
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.18").

Average rainfall days in December
Webster, IN

Average rainfall days in December - Webster, IN
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in December
Webster, IN

Average snowfall in December - Webster, IN
  • Average snowfall in December: 1.22"

The months with the highest snowfall are January and February (1.81").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Webster, IN

Average snowfall days in December - Webster, IN
  • Average snowfall days in December: 6.5 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Webster, IN

Average daylight in December / Average sunshine in December - Webster, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in December
Webster, IN

Average sunshine days in December - Webster, IN
  • Average sunshine days in December: 16.7 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in December
Webster, IN

Average UV index in December - Webster, IN
  • Average UV index in December: 1

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

Average cloud cover in December
Webster, IN

Average cloud cover in December - Webster, IN
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Webster, IN

Average visibility in December - Webster, IN
  • Average visibility in December: 6mi

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

Webster, Indiana, USA

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