December weather forecast
Sunman, IN

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Weather in December

The first month of the winter, December, is also an icy month in Sunman, Indiana, with an average temperature fluctuating between 29.8°F (-1.2°C) and 40.6°F (4.8°C).

Temperature

December comes with a drop in the average high-temperature, falling from November's fresh 51.1°F (10.6°C) to a cold 40.6°F (4.8°C). The average low-temperature, in December, is a subzero cold 29.8°F (-1.2°C).

Humidity

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

Rainfall

In Sunman, Indiana, in December, it is raining for 6.1 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, there are 89.7 rainfall days, and 7.44" (189mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Sunman, in December, snow falls for 3.7 days, with typically accumulated 0.24" (6mm) of snow. In Sunman, during the entire year, snow falls for 17.2 days and aggregates up to 1.61" (41mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:41 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:27 pm EST.

Sunshine

In Sunman, the average sunshine in December is 4.2h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Sunman. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

How cold does it get in Sunman in December?

The high-temperature, in December, in Sunman, records 40.6°F (4.8°C), while the low-temperature is 29.8°F (-1.2°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is computed to be 89.6°F (32°C).

What is the most humid month in Sunman?

December is the most humid month in Sunman, with an average relative humidity of 82%.

What is the average humidity in December in Sunman?

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

How many days does it rain in December in Sunman?

In Sunman, Indiana, in December, during 6.1 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

How much does it snow in Sunman in December?

In December, in Sunman, it is snowing for 3.7 days. Throughout December, 0.24" (6mm) of snow is accumulated.

What is the month with the shortest days in Sunman?

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

How many hours of daylight does Sunman have in December?

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

When are sunrise and sunset in December in Sunman?

On the first day of December in Sunman, Indiana, sunrise is at 7:41 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:27 pm EST.

How long on average sun shines in December in Sunman?

In Sunman, the average sunshine duration in December is 4.2h.

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

With an average maximum UV index of 1, December is the month with the lowest UV index in Sunman, Indiana.

How high is the UV index in December in Sunman?

The average daily maximum UV index in December in Sunman is 1. A UV Index value of 2, and less, symbolizes a low health risk 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
Sunman, IN

Average temperature in December - Sunman, IN
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 29.8°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 (23°F).

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Average pressure in December
Sunman, IN

Average pressure in December - Sunman, 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 (29.94"Hg).

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Average wind speed in December
Sunman, IN

Average wind speed in December - Sunman, IN
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
Sunman, IN

Average humidity in December - Sunman, 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%).

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Average rainfall in December
Sunman, IN

Average rainfall in December - Sunman, IN
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is May (0.79").
The driest month (with the least rainfall) is September (0.28").

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Average rainfall days in December
Sunman, IN

Average rainfall days in December - Sunman, IN
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is May (10.1 days).
The months with the least rainy days are February and November (5.5 days).

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Average snowfall in December
Sunman, IN

Average snowfall in December - Sunman, IN
  • Average snowfall in December: 0.24"

The month with the highest snowfall is March (0.43").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Sunman, IN

Average snowfall days in December - Sunman, IN
  • Average snowfall days in December: 3.7 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
Sunman, IN

Average daylight in December / Average sunshine in December - Sunman, 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 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).

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Average sunshine days in December
Sunman, IN

Average sunshine days in December - Sunman, IN
  • Average sunshine days in December: 22.1 days

The month with the most sunshine days is October (22.8 days).
The month with the least sunshine days is July (16.2 days).

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Average UV index in December
Sunman, IN

Average UV index in December - Sunman, IN
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Sunman, IN

Average cloud cover in December - Sunman, IN
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Sunman, IN

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

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

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Sunman, Indiana, USA

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