December weather forecast
Bromley, KY

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Weather in December

The first month of the winter, December, is still a cold month in Bromley, Kentucky, with an average temperature ranging between max 42.1°F (5.6°C) and min 30.4°F (-0.9°C).

Temperature

As November transitions into December, Bromley sees a drop in the average high-temperature, transitioning from a cool 51.4°F (10.8°C) to a cold 42.1°F (5.6°C). The average low-temperature of 30.4°F (-0.9°C) is witnessed during December.

Humidity

With an average relative humidity of 81%, December is the most humid month.

Rainfall

In Bromley, during December, the rain falls for 11.1 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Bromley, during the entire year, the rain falls for 146.4 days and collects up to 23.58" (599mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Bromley, Kentucky, in December, snow falls for 6.9 days, with typically accumulated 1.38" (35mm) of snow. Throughout the year, there are 30.4 snowfall days, and 7.76" (197mm) 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 December, sunrise is at 7:38 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 5:25 pm EST.

Sunshine

In December, the average sunshine is 4.1h.

UV index

The months with the lowest UV index in Bromley are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Bromley, 42.1°F (5.6°C) is the average high-temperature and 30.4°F (-0.9°C) is the average low-temperature during December. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is evaluated at 91.4°F (33°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 81%.

What is the average humidity in December?

In December, the average relative humidity is 81%.

How much does it rain in December?

In Bromley, in December, during 11.1 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

How many days does it snow in December in Bromley?

In Bromley, during December, snow falls for 6.9 days and regularly aggregates up to 1.38" (35mm) of snow.

What is the month with the shortest days?

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 Bromley, the average day length in December is 9h and 29min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:38 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 5:25 pm EST.

How long on average sun shines in December?

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

What are the months with the lowest UV index?

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 Bromley, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Bromley, KY

Average temperature in December - Bromley, KY
  • Average high temperature in December: 42.1°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in December: 30.4°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in December
Bromley, KY

Average pressure in December - Bromley, KY
  • 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 (29.94"Hg).

Average wind speed in December
Bromley, KY

Average wind speed in December - Bromley, KY
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in December
Bromley, KY

Average humidity in December - Bromley, KY
  • Average humidity in December: 81%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August, September and October (74%).

Average rainfall in December
Bromley, KY

Average rainfall in December - Bromley, KY
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days in December
Bromley, KY

Average rainfall days in December - Bromley, KY
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in December
Bromley, KY

Average snowfall in December - Bromley, KY
  • Average snowfall in December: 1.38"

The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Bromley, KY

Average snowfall days in December - Bromley, KY
  • Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Bromley, KY

Average daylight in December / Average sunshine in December - Bromley, KY
  • 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).

Average sunshine days in December
Bromley, KY

Average sunshine days in December - Bromley, KY
  • Average sunshine days in December: 14.7 days

The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and June (12 days).

Average UV index in December
Bromley, KY

Average UV index in December - Bromley, KY
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Bromley, KY

Average cloud cover in December - Bromley, KY
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in December
Bromley, KY

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

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

Bromley, Kentucky, USA

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