December weather forecast
Beech Brook, IN

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Weather in December

The first month of the winter, December, is also an icy month in Beech Brook, Indiana, with an average temperature varying between 28.6°F (-1.9°C) and 39.2°F (4°C).

Temperature

The arrival of December signals a shift in temperature, down from a frosty 49.5°F (9.7°C) in November to an icy 39.2°F (4°C). Throughout the month of December, Beech Brook observes an average nighttime temperature of 28.6°F (-1.9°C).

Humidity

January, July and December, with an average relative humidity of 82%, are the most humid months.

Rainfall

In Beech Brook, during December, the rain falls for 9.3 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Beech Brook, during the entire year, the rain falls for 153.4 days and collects up to 26.81" (681mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Beech Brook, in December, during 6.8 snowfall days, 2.01" (51mm) of snow is typically accumulated. In Beech Brook, during the entire year, snow falls for 28.6 days and aggregates up to 9.13" (232mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:45 am and sunset at 5:19 pm. On the last day of December, sunrise is at 8:03 am and sunset at 5:29 pm EST.

Sunshine

The average sunshine in December is 4.2h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 1 in December leads to these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold in Beech Brook during December?

Beech Brook in December has an average high-temperature of 39.2°F (4°C) and an average low-temperature of 28.6°F (-1.9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 86°F (30°C).

What is the most humid month?

January, July and December, with an average relative humidity of 82%, are most humid months.

What is the average humidity in December?

The average relative humidity in December is 82%.

How many days does it rain in December?

In Beech Brook, during December, the rain falls for 9.3 days and regularly aggregates up to 1.89" (48mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 6.8 days. Throughout December, 2.01" (51mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In Beech Brook, Indiana, the average day length in December is 9h and 26min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:45 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:29 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.2h.

When is the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

What is the UV index reading in December?

In December, the average daily maximum UV index in Beech Brook is 1. A UV Index estimate of 2, and below, represents a low health risk 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 December
Beech Brook, IN

Average temperature in December - Beech Brook, IN
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in December
Beech Brook, IN

Average pressure in December - Beech Brook, IN
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Beech Brook, IN

Average wind speed in December - Beech Brook, IN
  • Average wind speed in December: 9mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Beech Brook, IN

Average humidity in December - Beech Brook, IN
  • Average humidity in December: 82%

The months with the highest relative humidity are January, July and December (82%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Beech Brook, IN

Average rainfall in December - Beech Brook, IN
  • Average rainfall in December: 1.89"

The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in December
Beech Brook, IN

Average rainfall days in December - Beech Brook, IN
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8 days).

Average snowfall in December
Beech Brook, IN

Average snowfall in December - Beech Brook, IN
  • Average snowfall in December: 2.01"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Beech Brook, IN

Average snowfall days in December - Beech Brook, IN
  • Average snowfall days in December: 6.8 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Beech Brook, IN

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Beech Brook, IN

Average sunshine days in December - Beech Brook, IN
  • Average sunshine days in December: 16 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (9.8 days).

Average UV index in December
Beech Brook, IN

Average UV index in December - Beech Brook, IN
  • Average UV index in December: 1

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

Average cloud cover in December
Beech Brook, IN

Average cloud cover in December - Beech Brook, IN
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Beech Brook, IN

Average visibility in December - Beech Brook, IN
  • Average visibility in December: 6mi

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

Beech Brook, Indiana, USA

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