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 arrival of December correlates with a minor temperature reduction, down from November's refreshing 60.8°F (16°C) to a fresh 52.7°F (11.5°C). During the nights in December, an average low-temperature of 40.3°F (4.6°C) is observed.Humidity
February, March and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Jonestown, in December, during 11.8 rainfall days, 4.29" (109mm) of precipitation is typically accumulated. In Jonestown, during the entire year, the rain falls for 163.5 days and collects up to 42.68" (1084mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Jonestown, in December, during 0.7 snowfall days, 0.12" (3mm) of snow is typically accumulated. Throughout the year, there are 3.8 snowfall days, and 1.46" (37mm) of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:50 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:07 am and sunset at 5:02 pm CST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Jonestown?
How many hours of daylight does Jonestown have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Jonestown have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Jonestown, MS
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in December: 40.3°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (35.8°F).
Average pressure in December
Jonestown, MS
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Jonestown, MS
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Jonestown, MS
- Average humidity in December: 78%
The months with the highest relative humidity are February, March and December (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Jonestown, MS
- Average rainfall in December: 4.29"
The wettest month (with the highest rainfall) is April (5.04").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Jonestown, MS
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is August (18.3 days).
The months with the least rainy days are October and November (9.6 days).
Average snowfall in December
Jonestown, MS
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Jonestown, MS
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jonestown, MS
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Jonestown, MS
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in December
Jonestown, MS
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Jonestown, MS
- Average cloud cover in December: 45
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
Jonestown, MS
- 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).
Jonestown, Mississippi, USA
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