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
The onset of December coincides with a reduction in the average high-temperature, falling from a chilly 49.5°F (9.7°C) in November to an icy 39.7°F (4.3°C). Throughout the month of December, the average temperature in Morristown dips to a freezing cold 28.6°F (-1.9°C) at night.Humidity
In December, the average relative humidity in Morristown is 83%.Rainfall
In Morristown, in December, it is raining for 8.6 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 121 rainfall days, and 10.24" (260mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Morristown. In December, it is snowing for 6.9 days. Throughout December, 0.75" (19mm) of snow is accumulated. Throughout the year, in Morristown, there are 34.6 snowfall days, and 4.72" (120mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 4:59 pm. On the last day of December, in Morristown, Ohio, sunrise is at 7:46 am and sunset at 5:09 pm EST.
Sunshine
The average sunshine in December in Morristown is 3.5h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 1 in December transforms into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Morristown in December?
What is the average humidity in December in Morristown?
How many days does it rain in December in Morristown?
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?
What time are sunrise and sunset in December in Morristown?
How long on average sun shines in December in Morristown?
When is the lowest UV index in Morristown?
What is the UV index reading in December in Morristown?
Average temperature in December
Morristown, OH
- Average high temperature in December: 39.7°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Morristown, OH
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Morristown, OH
- Average wind speed in December: 7.1mph
The windiest months (with the highest average wind speed) are January and February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Morristown, OH
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Morristown, OH
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
Morristown, OH
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in December
Morristown, OH
- Average snowfall in December: 0.75"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Morristown, OH
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Morristown, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Morristown, OH
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in December
Morristown, OH
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Morristown, OH
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Morristown, OH
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Morristown, Ohio, USA
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