December weather forecast
Brookmoor, IN

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Weather in December

December, the first month of the winter in Brookmoor, is also an icy month, with an average temperature fluctuating between 28.2°F (-2.1°C) and 39.6°F (4.2°C).

Temperature

The onset of December introduces a moderate change in Brookmoor's weather, with average high-temperatures falling from November's frosty 49.5°F (9.7°C) to a cold 39.6°F (4.2°C). December nights in Brookmoor cool down to an average low-temperature of 28.2°F (-2.1°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In December, the rain falls for 11.3 days. Throughout December, 2.76" (70mm) of precipitation is accumulated. In Brookmoor, during the entire year, the rain falls for 171.4 days and collects up to 36.1" (917mm) of precipitation.

Snowfall

Months with snowfall in Brookmoor are January through April, October through December. In Brookmoor, during December, snow falls for 7.6 days and regularly aggregates up to 3.11" (79mm) of snow. Throughout the year, there are 33.7 snowfall days, and 12.48" (317mm) 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 the month, sunrise is at 7:47 am and sunset at 5:22 pm. On the last day of December, sunrise is at 8:05 am and sunset at 5:31 pm EST.

Sunshine

In December, the average sunshine is 4.2h.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

In December, the average high-temperature and low-temperature are 39.6°F (4.2°C) and 28.2°F (-2.1°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is estimated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 82%.

How much does it rain in December?

In Brookmoor, in December, during 11.3 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Brookmoor, in December, snow falls for 7.6 days, with typically accumulated 3.11" (79mm) of snow.

What is the month with the shortest days?

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

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

The average day length in December is 9h and 26min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:47 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:31 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.2h.

What is the month with the lowest UV index?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December in Brookmoor?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Brookmoor, IN

Average temperature in December - Brookmoor, IN
  • Average high temperature in December: 39.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in December
Brookmoor, IN

Average pressure in December - Brookmoor, 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
Brookmoor, IN

Average wind speed in December - Brookmoor, IN
  • Average wind speed in December: 8.9mph

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

Average humidity in December
Brookmoor, IN

Average humidity in December - Brookmoor, IN
  • Average humidity in December: 82%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Brookmoor, IN

Average rainfall in December - Brookmoor, IN
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days in December
Brookmoor, IN

Average rainfall days in December - Brookmoor, IN
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in December
Brookmoor, IN

Average snowfall in December - Brookmoor, IN
  • Average snowfall in December: 3.11"

The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Brookmoor, IN

Average snowfall days in December - Brookmoor, IN
  • Average snowfall days in December: 7.6 days

The month with the highest number of snowfall days is January (9.6 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
Brookmoor, IN

Average daylight in December / Average sunshine in December - Brookmoor, 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 month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Brookmoor, IN

Average sunshine days in December - Brookmoor, IN
  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is May (8.4 days).

Average UV index in December
Brookmoor, IN

Average UV index in December - Brookmoor, IN
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in December
Brookmoor, IN

Average cloud cover in December - Brookmoor, IN
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Brookmoor, IN

Average visibility in December - Brookmoor, IN
  • Average visibility in December: 5mi

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

Brookmoor, Indiana, USA

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