Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As Morristown, Indiana, enters December, the average high-temperature decreases from the a frosty 49.5°F (9.7°C) of November to an icy 39.2°F (4°C). An average low-temperature of 28.6°F (-1.9°C) is recorded in the month of December.Humidity
January, July and December, with an average relative humidity of 82%, are the most humid months in Morristown.Rainfall
In December, the rain falls for 9.3 days. Throughout December, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 153.4 rainfall days, and 26.81" (681mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Morristown, during December, snow falls for 6.8 days and regularly aggregates up to 2.01" (51mm) of snow. Throughout the year, there are 28.6 snowfall days, and 9.13" (232mm) of snow is accumulated.Daylight
The month with the shortest days in Morristown is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:45 am and sunset at 5:19 pm. On the last day of December, sunrise is at 8:03 am and sunset at 5:28 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 1 in December translates into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Morristown during December?
What is the most humid month in Morristown?
What is the average humidity in December in Morristown?
How much does it rain in Morristown in December?
How much does it snow in Morristown in December?
What is the month with the shortest days in Morristown?
What is the average length of the day in December in Morristown?
When is the sunrise / sunset in December in Morristown?
How long on average sun shines in December in Morristown?
What is the month with the lowest UV index in Morristown?
What is the UV index reading in December in Morristown?
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in December /
Average sunshine in December
Morristown, IN
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 4h and 1min
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).
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).
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).
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).
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).
Morristown, Indiana, USA
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