December weather forecast
Irma, KY

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Weather in December

December, the first month of the winter in Irma, is still a chilly month, with an average temperature fluctuating between 33.4°F (0.8°C) and 45.5°F (7.5°C).

Temperature

December weather is marked by a drop in the average high-temperature, falling from a cool 54.5°F (12.5°C) in November to a chilly 45.5°F (7.5°C). During December, the nighttime temperature averages of 33.4°F (0.8°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Irma, Kentucky, in December, it is raining for 10.8 days, with typically 2.05" (52mm) of accumulated precipitation. In Irma, during the entire year, the rain falls for 148.8 days and collects up to 27.05" (687mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Irma. In December, it is snowing for 3.2 days. Throughout December, 0.51" (13mm) of snow is accumulated. Throughout the year, in Irma, there are 15 snowfall days, and 4.8" (122mm) of snow is accumulated.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:49 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:45 pm CST.

Sunshine

In Irma, the average sunshine in December is 4.8h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Irma. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 2 in December translates into these instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What is the temperature in December in Irma?

An average high-temperature, in December, in Irma, is 45.5°F (7.5°C) and the average low-temperature is 33.4°F (0.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is estimated at 95°F (35°C).

What is the average humidity in December in Irma?

In December, the average relative humidity in Irma, Kentucky, is 78%.

How much does it rain in Irma in December?

In Irma, during December, the rain falls for 10.8 days and regularly aggregates up to 2.05" (52mm) of precipitation.

How many days does it snow in December in Irma?

In December, in Irma, it is snowing for 3.2 days. Throughout December, 0.51" (13mm) of snow is accumulated.

What is the month with the shortest days in Irma?

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

How many hours of daylight does Irma have in December?

In December, the average day length in Irma, Kentucky, is 9h and 38min.

When are sunrise and sunset in December in Irma?

On the first day of December in Irma, Kentucky, sunrise is at 6:49 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:45 pm CST.

How many hours of sunshine does Irma have in December?

The average sunshine duration in December in Irma is 4.8h.

What are the months with the lowest UV index in Irma?

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

How high is the UV index in December in Irma?

In December, the average daily maximum UV index in Irma, Kentucky, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Irma, KY

Average temperature in December - Irma, KY
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in December: 33.4°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in December
Irma, KY

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Irma, KY

Average wind speed in December - Irma, KY
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in December
Irma, KY

Average humidity in December - Irma, KY
  • Average humidity in December: 78%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Irma, KY

Average rainfall in December - Irma, KY
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in December
Irma, KY

Average rainfall days in December - Irma, KY
  • Average rainfall days in December: 10.8 days

The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in December
Irma, KY

Average snowfall in December - Irma, KY
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Irma, KY

Average snowfall days in December - Irma, KY
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (4.5 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
Irma, KY

Average daylight in December / Average sunshine in December - Irma, 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 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Irma, KY

Average sunshine days in December - Irma, KY
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.1 days).

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Average UV index in December
Irma, KY

Average UV index in December - Irma, 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 and December (UV index 2).

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Average cloud cover in December
Irma, KY

Average cloud cover in December - Irma, KY
  • Average cloud cover in December: 49

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).

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Average visibility in December
Irma, KY

Average visibility in December - Irma, 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).

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Irma, Kentucky, USA

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