December weather forecast
New Ross, IN

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Weather in December

The first month of the winter, December, is also a wintry month in New Ross, Indiana, with an average temperature varying between 27.1°F (-2.7°C) and 37.8°F (3.2°C).

Temperature

New Ross's weather changes with the onset of December, slightly falling from a chilly 48.6°F (9.2°C) in November to an icy 37.8°F (3.2°C). Throughout December, New Ross encounters an average temperature drop to a subzero cold 27.1°F (-2.7°C).

Humidity

In New Ross, the average relative humidity in December is 82%.

Rainfall

In December, the rain falls for 7.7 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. Throughout the year, in New Ross, Indiana, there are 144.3 rainfall days, and 22.2" (564mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In New Ross, in December, snow falls for 5.6 days, with typically accumulated 1.93" (49mm) of snow. Throughout the year, in New Ross, there are 28.6 snowfall days, and 8.62" (219mm) 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 7:50 am and sunset at 5:22 pm. On the last day of December, sunrise is at 8:08 am and sunset at 5:31 pm EST.

Sunshine

The average sunshine in December is 4.1h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in New Ross?

December temperatures in New Ross, Indiana, vary between a high-temperature of 37.8°F (3.2°C) and a low-temperature of 27.1°F (-2.7°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in December in New Ross?

The average relative humidity in December is 82%.

How many days does it rain in December in New Ross?

In New Ross, during December, the rain falls for 7.7 days and regularly aggregates up to 1.38" (35mm) of precipitation.

How many days does it snow in December in New Ross?

In New Ross, Indiana, in December, during 5.6 snowfall days, 1.93" (49mm) of snow is typically accumulated.

What is the month with the shortest days in New Ross?

December has the shortest days of the year in New Ross, Indiana, with an average of 9h and 24min of daylight.

What is the average length of the day in December in New Ross?

In New Ross, Indiana, the average day length in December is 9h and 23min.

What time are sunrise and sunset in December in New Ross?

In December, on the first day of the month, sunrise is at 7:50 am and sunset at 5:22 pm. On the last day of the month, in New Ross, sunrise is at 8:08 am and sunset at 5:31 pm EST.

How long on average sun shines in December in New Ross?

The average sunshine duration in December in New Ross is 4.1h.

What are the months with the lowest UV index in New Ross?

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

What is the UV index reading in December in New Ross?

In December, the average daily maximum UV index in New Ross is 2. A UV Index of 2, and less, symbolizes 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
New Ross, IN

Average temperature in December - New Ross, IN
  • Average high temperature in December: 37.8°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 (32.2°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in December
New Ross, IN

Average pressure in December - New Ross, 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
New Ross, IN

Average wind speed in December - New Ross, IN
  • Average wind speed in December: 9.6mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

Average humidity in December
New Ross, IN

Average humidity in December - New Ross, IN
  • Average humidity in December: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
New Ross, IN

Average rainfall in December - New Ross, IN
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is February (1.26").

Average rainfall days in December
New Ross, IN

Average rainfall days in December - New Ross, IN
  • Average rainfall days in December: 7.7 days

The month with the highest number of rainy days is May (19.1 days).
The months with the least rainy days are January and February (6.8 days).

Average snowfall in December
New Ross, IN

Average snowfall in December - New Ross, IN
  • Average snowfall in December: 1.93"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
New Ross, IN

Average snowfall days in December - New Ross, IN
  • Average snowfall days in December: 5.6 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
New Ross, IN

Average daylight in December / Average sunshine in December - New Ross, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
New Ross, IN

Average sunshine days in December - New Ross, IN
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in December
New Ross, IN

Average UV index in December - New Ross, 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
New Ross, IN

Average cloud cover in December - New Ross, IN
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
New Ross, IN

Average visibility in December - New Ross, IN
  • Average visibility in December: 6mi

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

New Ross, Indiana, USA

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