December weather forecast
Boswell, IN

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Weather in December

The first month of the winter, December, is also an icy month in Boswell, Indiana, with temperature in the range of an average high of 37°F (2.8°C) and an average low of 27°F (-2.8°C).

Temperature

In Boswell, entering December brings a temperature decrement, reducing from November's frosty 48.2°F (9°C) to an icy 37°F (2.8°C). During December, an average low-temperature of 27°F (-2.8°C) is observed in Boswell.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Boswell, in December, during 7.8 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 141.9 rainfall days, and 18.07" (459mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Boswell are January through April, November and December. In Boswell, in December, snow falls for 7.8 days, with typically accumulated 1.3" (33mm) of snow. Throughout the year, there are 36.9 snowfall days, and 7.13" (181mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:54 am and sunset at 5:23 pm. On the last day of December, in Boswell, sunrise is at 8:12 am and sunset at 5:32 pm EST.

Sunshine

The average sunshine in December is 4.3h.

UV index

December is the month with the lowest UV index in Boswell, Indiana, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

How cold is it in Boswell in December?

Boswell in December has an average high-temperature of 37°F (2.8°C) and an average low-temperature of 27°F (-2.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 87.8°F (31°C).

What is the average humidity in December in Boswell?

In Boswell, Indiana, the average relative humidity in December is 81%.

How many days does it rain in December in Boswell?

In December, in Boswell, the rain falls for 7.8 days. Throughout December, 0.98" (25mm) of precipitation is accumulated.

How many days does it snow in December in Boswell?

In Boswell, Indiana, during December, snow falls for 7.8 days and regularly aggregates up to 1.3" (33mm) of snow.

What is the month with the shortest days in Boswell?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Boswell.

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

In December, the average day length is 9h and 20min.

When is the sunrise / sunset in December in Boswell?

On the first day of December, sunrise is at 7:54 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 5:32 pm EST.

How many hours of sunshine does Boswell have in December?

In December, the average sunshine duration in Boswell is 4.3h.

When is the lowest UV index in Boswell?

With an average maximum UV index of 1, December is the month with the lowest UV index.

How high is the UV index in December in Boswell?

The average daily maximum UV index in December in Boswell, Indiana, is 1. A UV Index of 2, and less, symbolizes 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
Boswell, IN

Average temperature in December - Boswell, IN
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

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Average pressure in December
Boswell, IN

Average pressure in December - Boswell, IN
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Boswell, IN

Average wind speed in December - Boswell, IN
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in December
Boswell, IN

Average humidity in December - Boswell, IN
  • Average humidity in December: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Boswell, IN

Average rainfall in December - Boswell, IN
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is February (0.79").

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Average rainfall days in December
Boswell, IN

Average rainfall days in December - Boswell, IN
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in December
Boswell, IN

Average snowfall in December - Boswell, IN
  • Average snowfall in December: 1.3"

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Boswell, IN

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

The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Boswell, 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 18min).

  • Average sunshine in December: 4h and 2min

The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in December
Boswell, IN

Average sunshine days in December - Boswell, IN
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in December
Boswell, IN

Average UV index in December - Boswell, IN
  • Average UV index in December: 1

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

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Average cloud cover in December
Boswell, IN

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

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Boswell, IN

Average visibility in December - Boswell, 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).

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Boswell, Indiana, USA

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