December weather forecast
Trafalgar, IN

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Weather in December

The first month of the winter, December, is also an icy month in Trafalgar, Indiana, with temperature in the range of an average low of 28.8°F (-1.8°C) and an average high of 39.7°F (4.3°C).

Temperature

The onset of December coincides with a reduction in the average high-temperature, falling from a cool 50.2°F (10.1°C) in November to a wintry 39.7°F (4.3°C). In December, Trafalgar experiences a temperature dip to an average of 28.8°F (-1.8°C) at night.

Humidity

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

Rainfall

In Trafalgar, during December, the rain falls for 10.8 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Trafalgar, during the entire year, the rain falls for 156.3 days and collects up to 30.16" (766mm) of precipitation.

Snowfall

Months with snowfall in Trafalgar are January through April, October through December. In Trafalgar, during December, snow falls for 7.6 days and regularly aggregates up to 2.24" (57mm) of snow. Throughout the year, in Trafalgar, Indiana, there are 34.2 snowfall days, and 9.29" (236mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:46 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 8:04 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 minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 2 in December translates into this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold in Trafalgar during December?

The average high-temperature and low-temperature in Trafalgar, Indiana, during December are 39.7°F (4.3°C) and 28.8°F (-1.8°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 87.8°F (31°C).

What are the most humid months in Trafalgar?

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

What is the average humidity in December in Trafalgar?

In December, the average relative humidity in Trafalgar, Indiana, is 82%.

How many days does it rain in December in Trafalgar?

In Trafalgar, Indiana, in December, during 10.8 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

How many days does it snow in December in Trafalgar?

In Trafalgar, Indiana, in December, snow falls for 7.6 days, with typically accumulated 2.24" (57mm) of snow.

What is the month with the shortest days in Trafalgar?

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

How many hours of daylight does Trafalgar have in December?

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

When are sunrise and sunset in December in Trafalgar?

In December, on the first day of the month, sunrise is at 7:46 am and sunset at 5:21 pm. On the last day of the month, in Trafalgar, sunrise is at 8:04 am and sunset at 5:31 pm EST.

How many hours of sunshine does Trafalgar have in December?

In December, the average sunshine duration in Trafalgar is 4.1h.

When is the lowest UV index in Trafalgar?

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 intensity in December in Trafalgar?

In Trafalgar, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Trafalgar, IN

Average temperature in December - Trafalgar, IN
  • Average high temperature in December: 39.7°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in December
Trafalgar, IN

Average pressure in December - Trafalgar, 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
Trafalgar, IN

Average wind speed in December - Trafalgar, IN
  • Average wind speed in December: 8.7mph

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Trafalgar, IN

Average humidity in December - Trafalgar, 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
Trafalgar, IN

Average rainfall in December - Trafalgar, IN
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is February (1.85").

Average rainfall days in December
Trafalgar, IN

Average rainfall days in December - Trafalgar, IN
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in December
Trafalgar, IN

Average snowfall in December - Trafalgar, IN
  • Average snowfall in December: 2.24"

The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Trafalgar, IN

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

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Trafalgar, 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 months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Trafalgar, IN

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

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in December
Trafalgar, IN

Average UV index in December - Trafalgar, 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, October, November and December (UV index 2).

Average cloud cover in December
Trafalgar, IN

Average cloud cover in December - Trafalgar, 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 31).

Average visibility in December
Trafalgar, IN

Average visibility in December - Trafalgar, 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).

Trafalgar, Indiana, USA

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