December weather forecast
Trevlac, IN

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Weather in December

December, the first month of the winter in Trevlac, is still a cold month, with an average temperature ranging between min 29.5°F (-1.4°C) and max 40.8°F (4.9°C).

Temperature

During the transition into December, Trevlac observes a decrease in the average high-temperature, falling from a cool 51.3°F (10.7°C) in November to an icy 40.8°F (4.9°C). An average nighttime temperature of 29.5°F (-1.4°C) is noted during the month of December.

Humidity

December is the most humid month in Trevlac, Indiana, with an average relative humidity of 82%.

Rainfall

In Trevlac, in December, during 9.6 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Trevlac, Indiana, during the entire year, the rain falls for 151.7 days and collects up to 27.91" (709mm) of precipitation.

Snowfall

Months with snowfall in Trevlac are January through April, October through December. In Trevlac, during December, snow falls for 5.6 days and regularly aggregates up to 1.73" (44mm) of snow. Throughout the year, there are 25.4 snowfall days, and 8.78" (223mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:46 am and sunset at 5:22 pm. On the last day of December, sunrise is at 8:04 am and sunset at 5:32 pm EST.

Sunshine

The average sunshine in December is 4.3h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Trevlac. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 2 during December leads to these advisories:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

Is December cold in Trevlac?

The high-temperature, in December, in Trevlac, is 40.8°F (4.9°C), while the low-temperature averages to 29.5°F (-1.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is calculated to be 91.4°F (33°C).

What is the most humid month in Trevlac?

December is the most humid month in Trevlac, with an average relative humidity of 82%.

What is the average humidity in December in Trevlac?

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

How many days does it rain in December in Trevlac?

In Trevlac, during December, the rain falls for 9.6 days and regularly aggregates up to 2.17" (55mm) of precipitation.

How much does it snow in Trevlac in December?

In December, in Trevlac, it is snowing for 5.6 days. Throughout December, 1.73" (44mm) of snow is accumulated.

What is the month with the shortest days in Trevlac?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Trevlac?

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

What time are sunrise and sunset in December in Trevlac?

On the first day of December in Trevlac, sunrise is at 7:46 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:32 pm EST.

How many hours of sunshine does Trevlac have in December?

The average sunshine duration in December in Trevlac, Indiana, is 4.3h.

What is the month with the lowest UV index in Trevlac?

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

How high is the UV index in December in Trevlac?

In Trevlac, 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
Trevlac, IN

Average temperature in December - Trevlac, IN
  • Average high temperature in December: 40.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 29.5°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 (22.5°F).

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Average pressure in December
Trevlac, IN

Average pressure in December - Trevlac, IN
  • Average pressure in December: 30.13"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Trevlac, IN

Average wind speed in December - Trevlac, IN
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Trevlac, IN

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

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in December
Trevlac, IN

Average rainfall in December - Trevlac, IN
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in December
Trevlac, IN

Average rainfall days in December - Trevlac, IN
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is May (19.6 days).
The months with the least rainy days are January and February (8 days).

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Average snowfall in December
Trevlac, IN

Average snowfall in December - Trevlac, IN
  • Average snowfall in December: 1.73"

The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Trevlac, IN

Average snowfall days in December - Trevlac, IN
  • Average snowfall days in December: 5.6 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Trevlac, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in December
Trevlac, IN

Average sunshine days in December - Trevlac, IN
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (8.6 days).

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Average UV index in December
Trevlac, IN

Average UV index in December - Trevlac, 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).

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Average cloud cover in December
Trevlac, IN

Average cloud cover in December - Trevlac, IN
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in December
Trevlac, IN

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

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

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Trevlac, Indiana, USA

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