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
A moderate decline in the average high-temperature is seen during December, decreasing from a frosty 48.6°F (9.2°C) in November to a wintry 37.9°F (3.3°C). Mount Summit throughout December, experiences an average nighttime temperature of 27.9°F (-2.3°C).Humidity
January and December, with an average relative humidity of 83%, are the most humid months in Mount Summit.Rainfall
In Mount Summit, in December, during 10.3 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Mount Summit, during the entire year, the rain falls for 169.4 days and collects up to 31.77" (807mm) of precipitation.Snowfall
Months with snowfall in Mount Summit, Indiana, are January through April, October through December. In Mount Summit, in December, snow falls for 9.9 days, with typically accumulated 3.27" (83mm) of snow. Throughout the year, in Mount Summit, there are 42.7 snowfall days, and 13.82" (351mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:44 am and sunset at 5:16 pm. On the last day of December, in Mount Summit, sunrise is at 8:03 am and sunset at 5:26 pm EST.
Sunshine
The average sunshine in December is 4h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold is it in Mount Summit in December?
What is the most humid month in Mount Summit?
What is the average humidity in December in Mount Summit?
How much does it rain in Mount Summit in December?
How many days does it snow in December in Mount Summit?
What is the month with the shortest days in Mount Summit?
What is the average length of the day in December in Mount Summit?
What time are sunrise and sunset in December in Mount Summit?
How many hours of sunshine does Mount Summit have in December?
When is the lowest UV index in Mount Summit?
What is the UV index intensity in December in Mount Summit?
Average temperature in December
Mount Summit, IN
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Mount Summit, IN
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Mount Summit, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Mount Summit, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Mount Summit, IN
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in December
Mount Summit, IN
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Mount Summit, IN
- Average snowfall in December: 3.27"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mount Summit, IN
- Average snowfall days in December: 9.9 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mount Summit, IN
- 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: 4h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Mount Summit, IN
- Average sunshine days in December: 13 days
The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in December
Mount Summit, 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
Mount Summit, IN
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Mount Summit, IN
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Mount Summit, Indiana, USA
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