December weather forecast
May, KY

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Weather in December

The first month of the winter, December, is still a chilly month in May, Kentucky, with an average temperature ranging between min 32.4°F (0.2°C) and max 45.1°F (7.3°C).

Temperature

December indicates a minor shift in the average high-temperature, from November's cool 53.2°F (11.8°C) to a chilly 45.1°F (7.3°C). An average nighttime temperature of 32.4°F (0.2°C) is witnessed throughout December.

Humidity

The average relative humidity in December in May is 80%.

Rainfall

In May, Kentucky, during December, the rain falls for 13 days and regularly aggregates up to 3.62" (92mm) of precipitation. Throughout the year, there are 195.8 rainfall days, and 40.35" (1025mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in May. In May, during December, snow falls for 7.8 days and regularly aggregates up to 4.09" (104mm) of snow. Throughout the year, in May, there are 38.6 snowfall days, and 19.29" (490mm) of snow is accumulated.

Daylight

December has the shortest days of the year in May, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:27 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:24 pm EST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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Frequently asked questions

What is the average December temperature in May?

In December, in May, the average high-temperature is 45.1°F (7.3°C), and the average low-temperature is 32.4°F (0.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 89.6°F (32°C).

What is the average humidity in December in May?

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

How much does it rain in May in December?

In May, in December, it is raining for 13 days, with typically 3.62" (92mm) of accumulated precipitation.

How many days does it snow in December in May?

In May, Kentucky, during December, snow falls for 7.8 days and regularly aggregates up to 4.09" (104mm) of snow.

What is the month with the shortest days in May?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

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

In December, the average day length in May, Kentucky, is 9h and 39min.

When is the sunrise / sunset in December in May?

On the first day of December in May, Kentucky, sunrise is at 7:27 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:24 pm EST.

How long on average sun shines in December in May?

The average sunshine duration in December in May is 4.7h.

When is the lowest UV index in May?

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

How high is the UV index in December in May?

In May, the average daily maximum UV index in December is 2. A UV Index value 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
May, KY

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

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in December
May, KY

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

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in December
May, KY

Average wind speed in December - May, KY
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in December
May, KY

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

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in December
May, KY

Average rainfall in December - May, KY
  • Average rainfall in December: 3.62"

The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is September (2.48").

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Average rainfall days in December
May, KY

Average rainfall days in December - May, KY
  • Average rainfall days in December: 13 days

The months with the highest number of rainy days are May and July (20.8 days).
The month with the least rainy days is February (12.6 days).

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Average snowfall in December
May, KY

Average snowfall in December - May, KY
  • Average snowfall in December: 4.09"

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
May, KY

Average snowfall days in December - May, KY
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is January (11.1 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
May, KY

Average daylight in December / Average sunshine in December - May, 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 4min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in December
May, KY

Average sunshine days in December - May, KY
  • Average sunshine days in December: 11.9 days

The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is May (8 days).

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Average UV index in December
May, KY

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

The months with the highest UV index are May, June 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
May, KY

Average cloud cover in December - May, KY
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
May, KY

Average visibility in December - May, KY
  • Average visibility in December: 5mi

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

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May, Kentucky, USA

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