December weather forecast
Millgrove, IN

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Weather in December

The first month of the winter, December, is still a cold month in Millgrove, Indiana, with an average temperature ranging between min 27.1°F (-2.7°C) and max 37.4°F (3°C).

Temperature

As December commences, the average high-temperature shows a reduction, transitioning from a chilly 48.4°F (9.1°C) in November to a wintry 37.4°F (3°C). Nighttime temperatures in December average to a subzero cold 27.1°F (-2.7°C).

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 83%.

Rainfall

In Millgrove, during December, the rain falls for 10.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Millgrove, during the entire year, the rain falls for 169.1 days and collects up to 30.98" (787mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Millgrove. In December, it is snowing for 10.3 days. Throughout December, 3.27" (83mm) of snow is accumulated. Throughout the year, there are 47.6 snowfall days, and 15.12" (384mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:45 am and sunset at 5:15 pm. On the last day of December, sunrise is at 8:04 am and sunset at 5:24 pm EST.

Sunshine

The average sunshine in December is 3.9h.

UV index

December is the month with the lowest UV index in Millgrove, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In Millgrove, in December, the average high-temperature is 37.4°F (3°C), and the average low-temperature is 27.1°F (-2.7°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 87.8°F (31°C).

What are the most humid months?

The months with the highest humidity are January and December, with an average relative humidity of 83%.

What is the average humidity in December?

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

How much does it rain in December?

In Millgrove, in December, during 10.5 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

How many days does it snow in December?

In December, it is snowing for 10.3 days. Throughout December, 3.27" (83mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

How many hours of daylight does Millgrove have in December?

The average day length in December is 9h and 21min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:45 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:24 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 3.9h.

When is the lowest UV index in Millgrove?

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

What is the UV index reading in December?

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

Average temperature in December - Millgrove, IN
  • Average high temperature in December: 37.4°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in December: 27.1°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
Millgrove, IN

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

The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Millgrove, IN

Average wind speed in December - Millgrove, IN
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Millgrove, IN

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

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Millgrove, IN

Average rainfall in December - Millgrove, IN
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is February (1.85").

Average rainfall days in December
Millgrove, IN

Average rainfall days in December - Millgrove, IN
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in December
Millgrove, IN

Average snowfall in December - Millgrove, IN
  • Average snowfall in December: 3.27"

The month with the highest snowfall is February (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Millgrove, IN

Average snowfall days in December - Millgrove, IN
  • Average snowfall days in December: 10.3 days

The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Millgrove, 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 18min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Millgrove, IN

Average sunshine days in December - Millgrove, IN
  • Average sunshine days in December: 11.7 days

The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is May (8.9 days).

Average UV index in December
Millgrove, IN

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

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

Average cloud cover in December
Millgrove, IN

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

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are June, July and August (Cloud cover 33).

Average visibility in December
Millgrove, IN

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

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

Millgrove, Indiana, USA

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