December weather forecast
Fleener, IN

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Weather in December

December, the first month of the winter in Fleener, is also an icy month, with an average temperature fluctuating between 40.8°F (4.9°C) and 29.5°F (-1.4°C).

Temperature

December shows a mild decline in the average high-temperature, falling from November's cool 51.3°F (10.7°C) to a wintry 40.8°F (4.9°C). Fleener observes an average low-temperature of 29.5°F (-1.4°C) during December nights.

Humidity

With an average relative humidity of 82%, December is the most humid month.

Rainfall

In December, the rain falls for 9.6 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. In Fleener, during the entire year, the rain falls for 151.7 days and collects up to 27.91" (709mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Fleener, during December, snow falls for 5.6 days and regularly aggregates up to 1.73" (44mm) of snow. In Fleener, during the entire year, snow falls for 25.4 days and aggregates up to 8.78" (223mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:46 am and sunset at 5:22 pm. On the last day of December, in Fleener, sunrise is at 8:05 am and sunset at 5:32 pm EST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

January, February, October through 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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

The high-temperature, in December, in Fleener, records 40.8°F (4.9°C), while the low-temperature is 29.5°F (-1.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 91.4°F (33°C).

What is the most humid month in Fleener?

The most humid month is December, with an average relative humidity of 82%.

What is the average humidity in December?

In Fleener, the average relative humidity in December is 82%.

How much does it rain in December?

In Fleener, in December, during 9.6 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

How much does it snow in December?

In Fleener, in December, snow falls for 5.6 days, with typically accumulated 1.73" (44mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

In Fleener, the average day length in December is 9h and 28min.

What time are sunrise and sunset in December in Fleener?

In December, on the first day of the month, sunrise is at 7:46 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:32 pm EST.

How many hours of sunshine does Fleener have in December?

In Fleener, the average sunshine duration in December is 4.3h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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
Fleener, IN

Average temperature in December - Fleener, IN
  • Average high temperature in December: 40.8°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 (35.4°F).

  • Average low temperature in December: 29.5°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in December
Fleener, IN

Average pressure in December - Fleener, IN
  • 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 (29.93"Hg).

Average wind speed in December
Fleener, IN

Average wind speed in December - Fleener, IN
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Fleener, IN

Average humidity in December - Fleener, IN
  • Average humidity in December: 82%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Fleener, IN

Average rainfall in December - Fleener, IN
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in December
Fleener, IN

Average rainfall days in December - Fleener, IN
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is May (19.6 days).
The months with the least rainy days are January and February (8 days).

Average snowfall in December
Fleener, IN

Average snowfall in December - Fleener, IN
  • Average snowfall in December: 1.73"

The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Fleener, IN

Average snowfall days in December - Fleener, IN
  • Average snowfall days in December: 5.6 days

The month with the highest number of snowfall days is January (6.8 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
Fleener, IN

Average daylight in December / Average sunshine in December - Fleener, IN
  • 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 2min

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 12min).

Average sunshine days in December
Fleener, IN

Average sunshine days in December - Fleener, IN
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (8.6 days).

Average UV index in December
Fleener, IN

Average UV index in December - Fleener, IN
  • 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, October, November and December (UV index 2).

Average cloud cover in December
Fleener, IN

Average cloud cover in December - Fleener, IN
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Fleener, IN

Average visibility in December - Fleener, IN
  • Average visibility in December: 6mi

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

Fleener, Indiana, USA

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