December weather forecast
Rugby, IN

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Weather in December

December, the first month of the winter in Rugby, is also a wintry month, with an average temperature varying between 29.3°F (-1.5°C) and 40.1°F (4.5°C).

Temperature

The onset of December results in a decrease in the average high-temperature, receding from a fresh 50.4°F (10.2°C) in November to a cold 40.1°F (4.5°C). During the month of December, Rugby anticipates a mean low-temperature of 29.3°F (-1.5°C).

Humidity

The months with the highest humidity are July and December, with an average relative humidity of 82%.

Rainfall

In Rugby, in December, during 11.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 169.5 rainfall days, and 35.87" (911mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Rugby, during December, snow falls for 7.8 days and regularly aggregates up to 2.13" (54mm) of snow. In Rugby, during the entire year, snow falls for 34.1 days and aggregates up to 11.22" (285mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:44 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:29 pm EST.

Sunshine

In Rugby, Indiana, the average sunshine in December is 4.1h.

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 of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during December leads to these instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

In December, the average high-temperature and low-temperature are 40.1°F (4.5°C) and 29.3°F (-1.5°C) respectively. In August, 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?

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

What is the average humidity in December?

In December, the average relative humidity is 82%.

How many days does it rain in December?

In Rugby, Indiana, in December, it is raining for 11.8 days, with typically 2.8" (71mm) of accumulated precipitation.

How much does it snow in December?

In Rugby, in December, during 7.8 snowfall days, 2.13" (54mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

In Rugby, Indiana, the average day length in December is 9h and 28min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:44 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:29 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.1h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's 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
Rugby, IN

Average temperature in December - Rugby, IN
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in December
Rugby, IN

Average pressure in December - Rugby, 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
Rugby, IN

Average wind speed in December - Rugby, IN
  • Average wind speed in December: 8.8mph

The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in December
Rugby, IN

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

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

Average rainfall in December
Rugby, IN

Average rainfall in December - Rugby, IN
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in December
Rugby, IN

Average rainfall days in December - Rugby, IN
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in December
Rugby, IN

Average snowfall in December - Rugby, IN
  • Average snowfall in December: 2.13"

The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Rugby, IN

Average snowfall days in December - Rugby, IN
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Rugby, IN
  • Average daylight in December: 9h and 3min

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 30min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Rugby, IN

Average sunshine days in December - Rugby, IN
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in December
Rugby, IN

Average UV index in December - Rugby, 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
Rugby, IN

Average cloud cover in December - Rugby, IN
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Rugby, IN

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

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

Rugby, Indiana, USA

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