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's arrival aligns with a minor decrease in average high-temperatures, from November's comfortable 66.6°F (19.2°C) to a still refreshing 59.7°F (15.4°C). Jamestown, during December nights, observes an average temperature of 44.1°F (6.7°C).Humidity
The most humid month in Jamestown is December, with an average relative humidity of 81%.Rainfall
In Jamestown, in December, during 13.2 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 172.7 rainfall days, and 30.91" (785mm) of precipitation is accumulated.Snowfall
Months with snowfall in Jamestown are January through March and December. December is the month with the most snowfall. Snow falls for 0.4 days and accumulates 0.39" (10mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:40 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 5:07 pm CST.
Sunshine
The months with the least sunshine in Jamestown are February and December, with an average of 4.9h of sunshine.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 3 during December, leads to the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What are December temperatures in Jamestown?
What is the most humid month in Jamestown?
What is the average humidity in December in Jamestown?
How many days does it rain in December in Jamestown?
What is the snowiest month in Jamestown?
When does it start snowing in Jamestown?
What is the month with the shortest days in Jamestown?
How many hours of daylight does Jamestown have in December?
When is the sunrise / sunset in December in Jamestown?
What are the months with the least sunshine in Jamestown?
How long on average sun shines in December in Jamestown?
When is the lowest UV index in Jamestown?
How high is the UV index in December in Jamestown?
Average temperature in December
Jamestown, MS
- Average high temperature in December: 59.7°F
The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in December: 44.1°F
The month with the highest average low temperature is August (72.5°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in December
Jamestown, MS
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Jamestown, MS
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are January, February and April (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Jamestown, MS
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Jamestown, MS
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is August (4.02").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in December
Jamestown, MS
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is August (22.6 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in December
Jamestown, MS
- Average snowfall in December: 0.39"
The month with the highest snowfall is December (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Jamestown, MS
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Jamestown, MS
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Jamestown, MS
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (6.7 days).
Average UV index in December
Jamestown, MS
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Jamestown, MS
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Jamestown, MS
- Average visibility in December: 5mi
The months with the highest visibility are January, October and November (6mi).
The months with the lowest visibility are February, March, April, May, June, July, August, September and December (5mi).
Jamestown, Mississippi, USA
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