December weather forecast
Morristown, IN

Weather in December

December, the first month of the winter in Morristown, is still a cold month, with an average temperature ranging between max 39.2°F (4°C) and min 28.6°F (-1.9°C).

Temperature

In Morristown, the average high-temperature in December drops from a chilly 49.5°F (9.7°C) in November to a wintry 39.2°F (4°C). In December, in Morristown, the average low-temperature is 28.6°F (-1.9°C).

Humidity

January, July and December, with an average relative humidity of 82%, are the most humid months in Morristown, Indiana.

Rainfall

In Morristown, it is raining for 9.3 days, with typically 1.89" (48mm) of accumulated precipitation. In Morristown, during the entire year, the rain falls for 153.4 days and collects up to 26.81" (681mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Morristown, snow falls for 6.8 days, with typically accumulated 2.01" (51mm) of snow. In Morristown, during the entire year, snow falls for 28.6 days and aggregates up to 9.13" (232mm) of snow.

Daylight

With an average of 9h and 25min of daylight, December has the shortest days of the year.
On the first day of December in Morristown, sunrise is at 7:44 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:28 pm EST.

Sunshine

In Morristown, 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. 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: The average daily UV index of 1 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Morristown?

In December, in Morristown, Indiana, the average high-temperature is 39.2°F (4°C), and the average low-temperature is 28.6°F (-1.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 86°F (30°C).

What is the most humid month in Morristown?

January, July and December, with an average relative humidity of 82%, are most humid months in Morristown.

What is the average humidity in December in Morristown?

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

How many days does it rain in December in Morristown?

In Morristown, Indiana, during December, the rain falls for 9.3 days and regularly aggregates up to 1.89" (48mm) of precipitation.

How many days does it snow in December in Morristown?

In December, it is snowing for 6.8 days. Throughout December, 2.01" (51mm) of snow is accumulated.

What is the month with the shortest days in Morristown?

With an average of 9h and 25min of daylight, December has the shortest days of the year.

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

In Morristown, Indiana, the average day length in December is 9h and 25min.

What time are sunrise and sunset in December in Morristown?

On the first day of December in Morristown, Indiana, sunrise is at 7:44 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:28 pm EST.

How many hours of sunshine does Morristown have in December?

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

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

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

How high is the UV index in December in Morristown?

In December, the average daily maximum UV index in Morristown is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Morristown, IN

Average temperature in December - Morristown, IN
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in December
Morristown, IN

Average pressure in December - Morristown, IN
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Morristown, IN

Average wind speed in December - Morristown, IN
  • Average wind speed in December: 9mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in December
Morristown, IN

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

The months with the highest relative humidity are January, July and December (82%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in December
Morristown, IN

Average rainfall in December - Morristown, IN
  • Average rainfall in December: 1.89"

The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in December
Morristown, IN

Average rainfall days in December - Morristown, IN
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8 days).

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Average snowfall in December
Morristown, IN

Average snowfall in December - Morristown, IN
  • Average snowfall in December: 2.01"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Morristown, IN

Average snowfall days in December - Morristown, IN
  • Average snowfall days in December: 6.8 days

The month with the highest number of snowfall days is January (7.8 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
Morristown, IN

Average daylight in December / Average sunshine in December - Morristown, IN
  • Average daylight in December: 9h and 25min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

  • Average sunshine in December: 4h and 12min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Morristown, IN

Average sunshine days in December - Morristown, IN
  • Average sunshine days in December: 16 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (9.8 days).

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Average UV index in December
Morristown, IN

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

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

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Average cloud cover in December
Morristown, IN

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

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in December
Morristown, IN

Average visibility in December - Morristown, IN
  • 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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