December weather forecast
Letts Corner, IN

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Weather in December

The first month of the winter, December, is also a wintry month in Letts Corner, Indiana, with an average temperature varying between 40.6°F (4.8°C) and 29.5°F (-1.4°C).

Temperature

The average high-temperature decreases in December, shifting from a cool 50.9°F (10.5°C) in November to an icy 40.6°F (4.8°C). During the month of December, Letts Corner's nighttime temperature lowers to an average of 29.5°F (-1.4°C).

Humidity

With an average relative humidity of 82%, December is the most humid month in Letts Corner.

Rainfall

In Letts Corner, Indiana, in December, it is raining for 9.9 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, in Letts Corner, there are 137.6 rainfall days, and 17.99" (457mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Letts Corner, in December, snow falls for 6.6 days, with typically accumulated 0.91" (23mm) of snow. Throughout the year, there are 29.3 snowfall days, and 5.35" (136mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Letts Corner, with an average of 9h and 30min of daylight.
On the first day of December in Letts Corner, Indiana, sunrise is at 7:43 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:29 pm EST.

Sunshine

In Letts Corner, the average sunshine in December is 4.1h.

UV index

December is the month with the lowest UV index in Letts Corner, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 1 in December translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

How cold is it in Letts Corner in December?

The high-temperature, in December, in Letts Corner, records 40.6°F (4.8°C), while the low-temperature is 29.5°F (-1.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 87.8°F (31°C).

What is the most humid month in Letts Corner?

With an average relative humidity of 82%, December is the most humid month.

What is the average humidity in December in Letts Corner?

The average relative humidity in December is 82%.

How much does it rain in Letts Corner in December?

In December, in Letts Corner, the rain falls for 9.9 days. Throughout December, 1.26" (32mm) of precipitation is accumulated.

How much does it snow in Letts Corner in December?

In December, in Letts Corner, Indiana, it is snowing for 6.6 days. Throughout December, 0.91" (23mm) of snow is accumulated.

What is the month with the shortest days in Letts Corner?

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

What is the average length of the day in December in Letts Corner?

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

When are sunrise and sunset in December in Letts Corner?

On the first day of December, sunrise is at 7:43 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:29 pm EST.

How many hours of sunshine does Letts Corner have in December?

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

What is the month with the lowest UV index in Letts Corner?

The month with the lowest UV index in Letts Corner is December, with an average maximum UV index of 1.

How high is the UV index in December in Letts Corner?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Letts Corner, IN

Average temperature in December - Letts Corner, IN
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.9°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 (22.8°F).

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Average pressure in December
Letts Corner, IN

Average pressure in December - Letts Corner, IN
  • Average pressure in December: 30.12"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
Letts Corner, IN

Average wind speed in December - Letts Corner, IN
  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).

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Average humidity in December
Letts Corner, IN

Average humidity in December - Letts Corner, 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 (74%).

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Average rainfall in December
Letts Corner, IN

Average rainfall in December - Letts Corner, IN
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is September (0.98").

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Average rainfall days in December
Letts Corner, IN

Average rainfall days in December - Letts Corner, IN
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (7.9 days).

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Average snowfall in December
Letts Corner, IN

Average snowfall in December - Letts Corner, IN
  • Average snowfall in December: 0.91"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Letts Corner, IN

Average snowfall days in December - Letts Corner, IN
  • Average snowfall days in December: 6.6 days

The month with the highest number of snowfall days is February (7.3 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
Letts Corner, IN

Average daylight in December / Average sunshine in December - Letts Corner, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Letts Corner, IN

Average sunshine days in December - Letts Corner, IN
  • Average sunshine days in December: 16.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (12.4 days).

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Average UV index in December
Letts Corner, IN

Average UV index in December - Letts Corner, IN
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Letts Corner, IN

Average cloud cover in December - Letts Corner, IN
  • Average cloud cover in December: 56

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

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Average visibility in December
Letts Corner, IN

Average visibility in December - Letts Corner, IN
  • Average visibility in December: 6mi

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

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Letts Corner, Indiana, USA

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