December weather forecast
Boston Corner, IN

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Weather in December

The first month of the winter, December, is also a wintry month in Boston Corner, Indiana, with an average temperature varying between 27.1°F (-2.7°C) and 36.7°F (2.6°C).

Temperature

With the onset of December, Boston Corner experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 47.5°F (8.6°C) in November to a wintry 36.7°F (2.6°C). Throughout December, Boston Corner witnesses a nighttime temperature average of 27.1°F (-2.7°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Boston Corner, during December, the rain falls for 11.1 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Boston Corner, during the entire year, the rain falls for 159.4 days and collects up to 23.74" (603mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In December, it is snowing for 10 days. Throughout December, 1.93" (49mm) of snow is accumulated. In Boston Corner, during the entire year, snow falls for 48.4 days and aggregates up to 10.47" (266mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:45 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:21 pm EST.

Sunshine

In Boston Corner, the average sunshine in December is 3.9h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, a regular UV index of 1 translates into these guidelines:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

An average high-temperature, in December, in Boston Corner, is 36.7°F (2.6°C) and the average low-temperature is 27.1°F (-2.7°C). In July, 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 is the average humidity in December?

The average relative humidity in December is 82%.

How many days does it rain in December?

In December, the rain falls for 11.1 days. Throughout December, 1.61" (41mm) of precipitation is accumulated.

How many days does it snow in December?

In Boston Corner, during December, snow falls for 10 days and regularly aggregates up to 1.93" (49mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 17min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:45 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:21 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.9h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In Boston Corner, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat 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
Boston Corner, IN

Average temperature in December - Boston Corner, IN
  • Average high temperature in December: 36.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Boston Corner, IN

Average pressure in December - Boston Corner, IN
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Boston Corner, IN

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

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Boston Corner, IN

Average humidity in December - Boston Corner, IN
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Boston Corner, IN

Average rainfall in December - Boston Corner, IN
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.34").

Average rainfall days in December
Boston Corner, IN

Average rainfall days in December - Boston Corner, IN
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7.5 days).

Average snowfall in December
Boston Corner, IN

Average snowfall in December - Boston Corner, IN
  • Average snowfall in December: 1.93"

The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Boston Corner, IN

Average snowfall days in December - Boston Corner, IN
  • Average snowfall days in December: 10 days

The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Boston Corner, IN

Average daylight in December / Average sunshine in December - Boston Corner, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Boston Corner, IN

Average sunshine days in December - Boston Corner, IN
  • Average sunshine days in December: 13 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is June (10 days).

Average UV index in December
Boston Corner, IN

Average UV index in December - Boston Corner, 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).

Average cloud cover in December
Boston Corner, IN

Average cloud cover in December - Boston Corner, IN
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in December
Boston Corner, IN

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

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

Boston Corner, Indiana, USA

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