December weather forecastMilltown, IN

December

Weather in December

December, the first month of the winter in Milltown, is also a frosty month, with an average temperature varying between 31.8°F (-0.1°C) and 43.9°F (6.6°C).

Temperature

Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a fresh 52.9°F (11.6°C) to a frosty 43.9°F (6.6°C). Throughout December, an average low-temperature of 31.8°F (-0.1°C) is experienced.

Humidity

February and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Milltown, in December, during 11.3 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Milltown, during the entire year, the rain falls for 160 days and collects up to 29.45" (748mm) of precipitation.

Snowfall

Months with snowfall are January through April, September through December. In Milltown, in December, during 5.5 snowfall days, 1.14" (29mm) of snow is typically accumulated. Throughout the year, there are 26.8 snowfall days, and 7.91" (201mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Milltown.
On the first day of December in Milltown, sunrise is at 7:43 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:34 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 4.4h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 suggests this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Milltown, is 43.9°F (6.6°C), while the low-temperature averages to 31.8°F (-0.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is calculated to be 96.8°F (36°C).

February and December, with an average relative humidity of 80%, are most humid months in Milltown, Indiana.

The average relative humidity in December in Milltown is 80%.

In December, in Milltown, Indiana, the rain falls for 11.3 days. Throughout December, 2.2" (56mm) of precipitation is accumulated.

In Milltown, during December, snow falls for 5.5 days and regularly aggregates up to 1.14" (29mm) of snow.

December has the shortest days of the year in Milltown, Indiana, with an average of 9h and 30min of daylight.

In Milltown, Indiana, the average day length in December is 9h and 33min.

On the first day of December, sunrise is at 7:43 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:34 pm EST.

The month with the least sunshine in Milltown is December, with an average of 4.4h of sunshine.

In Milltown, the average sunshine duration in December is 4.4h.

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Milltown, Indiana.

The average daily maximum UV index in December in Milltown, Indiana, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Milltown, IN

  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 31.8°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in December
Milltown, IN

  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Milltown, IN

  • Average wind speed in December: 7.1mph

The windiest months (with the highest average wind speed) are January and February (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in December
Milltown, IN

  • Average humidity in December: 80%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Milltown, IN

  • Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Milltown, IN

  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (9.8 days).

Average snowfall in December
Milltown, IN

  • Average snowfall in December: 1.14"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in December
Milltown, IN

  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

  • Average daylight in December: 9h and 30min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 24min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in December
Milltown, IN

  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in December
Milltown, IN

  • Average UV index in December: 2

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

Average cloud cover in December
Milltown, IN

  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Milltown, IN

  • Average visibility in December: 5mi

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