December weather forecast
Boston, KY

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Weather in December

The first month of the winter, December, is still a chilly month in Boston, Kentucky, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 32.7°F (0.4°C).

Temperature

The onset of December is marked by a minor decrease in temperature, transitioning from a cool 54°F (12.2°C) in November to a frosty 45.1°F (7.3°C). In December, Boston encounters an average low-temperature of 32.7°F (0.4°C) during the night.

Humidity

February and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In December, in Boston, Kentucky, the rain falls for 11.5 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. Throughout the year, in Boston, Kentucky, there are 160.2 rainfall days, and 32.32" (821mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Boston. In Boston, in December, during 5.4 snowfall days, 1.14" (29mm) of snow is typically accumulated. Throughout the year, in Boston, there are 24.7 snowfall days, and 7.48" (190mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Boston, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:39 am and sunset at 5:24 pm. On the last day of December, in Boston, Kentucky, sunrise is at 7:57 am and sunset at 5:34 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 4.5h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To cut down UV radiation exposure by about half, sport a wide-brim hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What is the temperature in December in Boston?

The high-temperature, in December, in Boston, is 45.1°F (7.3°C), while the low-temperature averages to 32.7°F (0.4°C). In August, 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 96.8°F (36°C).

What are the most humid months in Boston?

The months with the highest humidity in Boston, Kentucky, are February and December, with an average relative humidity of 80%.

What is the average humidity in December in Boston?

In December, the average relative humidity in Boston, Kentucky, is 80%.

How many days does it rain in December in Boston?

In December, in Boston, the rain falls for 11.5 days. Throughout December, 2.52" (64mm) of precipitation is accumulated.

How much does it snow in Boston in December?

In Boston, in December, snow falls for 5.4 days, with typically accumulated 1.14" (29mm) of snow.

What is the month with the shortest days in Boston?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Boston.

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

In December, the average day length in Boston, Kentucky, is 9h and 36min.

When is the sunrise / sunset in December in Boston?

In December, on the first day of the month, sunrise is at 7:39 am and sunset at 5:24 pm. On the last day of the month, in Boston, sunrise is at 7:57 am and sunset at 5:34 pm EST.

What are the months with the least sunshine in Boston?

January and December, with an average of 4.5h of sunshine, are months with the least sunshine in Boston, Kentucky.

How many hours of sunshine does Boston have in December?

In December, the average sunshine duration in Boston is 4.5h.

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

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Boston?

The average daily maximum UV index in December in Boston, Kentucky, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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, KY

Average temperature in December - Boston, KY
  • Average high temperature in December: 45.1°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in December: 32.7°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

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Average pressure in December
Boston, KY

Average pressure in December - Boston, KY
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Boston, KY

Average wind speed in December - Boston, KY
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in December
Boston, KY

Average humidity in December - Boston, KY
  • Average humidity in December: 80%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August, September and October (74%).

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Average rainfall in December
Boston, KY

Average rainfall in December - Boston, KY
  • Average rainfall in December: 2.52"

The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in December
Boston, KY

Average rainfall days in December - Boston, KY
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.8 days).

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Average snowfall in December
Boston, KY

Average snowfall in December - Boston, KY
  • Average snowfall in December: 1.14"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Boston, KY

Average snowfall days in December - Boston, KY
  • Average snowfall days in December: 5.4 days

The month with the highest number of snowfall days is February (6.7 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
Boston, KY

Average daylight in December / Average sunshine in December - Boston, KY
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).

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Average sunshine days in December
Boston, KY

Average sunshine days in December - Boston, KY
  • Average sunshine days in December: 16 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (10.4 days).

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Average UV index in December
Boston, KY

Average UV index in December - Boston, KY
  • 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, November and December (UV index 2).

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Average cloud cover in December
Boston, KY

Average cloud cover in December - Boston, KY
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in December
Boston, KY

Average visibility in December - Boston, KY
  • Average visibility in December: 6mi

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

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Boston, Kentucky, USA

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