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
December shows a mild decline in the average high-temperature, falling from November's fresh 54.7°F (12.6°C) to a frosty 44.8°F (7.1°C). During December, Summersville's temperature averages to a freezing cold 31.1°F (-0.5°C) at night.Humidity
The average relative humidity in December in Summersville is 77%.Rainfall
In Summersville, during December, the rain falls for 7 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 139.5 rainfall days, and 25.87" (657mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Summersville, Missouri, in December, snow falls for 3.2 days, with typically accumulated 1.06" (27mm) of snow. Throughout the year, in Summersville, there are 17.2 snowfall days, and 4.84" (123mm) of snow is accumulated.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:02 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:59 pm CST.
Sunshine
In Summersville, the average sunshine in December is 5.1h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Summersville in December?
What is the average humidity in December in Summersville?
How much does it rain in Summersville in December?
How many days does it snow in December in Summersville?
What is the month with the shortest days in Summersville?
How many hours of daylight does Summersville have in December?
When is the sunrise / sunset in December in Summersville?
How long on average sun shines in December in Summersville?
What is the month with the lowest UV index in Summersville?
What is the UV index reading in December in Summersville?
Average temperature in December
Summersville, MO
- Average high temperature in December: 44.8°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Summersville, MO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Summersville, MO
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).
Average humidity in December
Summersville, MO
- Average humidity in December: 77%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Summersville, MO
- Average rainfall in December: 1.42"
The wettest months (with the highest rainfall) are April and May (3.15").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days in December
Summersville, MO
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (7 days).
Average snowfall in December
Summersville, MO
- Average snowfall in December: 1.06"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Summersville, MO
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Summersville, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Summersville, MO
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is December (20.5 days).
The months with the least sunshine days are May and June (12.6 days).
Average UV index in December
Summersville, MO
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Summersville, MO
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Summersville, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Summersville, Missouri, USA
Weather forecast for your location
2. Allow the app to use your location