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 coincides with a soft drop in the average high-temperature, subtly decreasing from November's cool 55°F (12.8°C) to a frosty 46.9°F (8.3°C). The mean low-temperature during December nights is a wintry 34°F (1.1°C).Humidity
The months with the highest humidity in Jamestown are February and December, with an average relative humidity of 80%.Rainfall
In Jamestown, in December, it is raining for 13.5 days, with typically 3.74" (95mm) of accumulated precipitation. In Jamestown, during the entire year, the rain falls for 178.7 days and collects up to 40.87" (1038mm) of precipitation.Snowfall
Months with snowfall in Jamestown, Kentucky, are January through April, October through December. In Jamestown, in December, snow falls for 5.5 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, there are 27.6 snowfall days, and 10.59" (269mm) of snow is accumulated.Daylight
The month with the shortest days in Jamestown is December, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:35 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:33 pm CST.
Sunshine
In December, the average sunshine in Jamestown is 4.4h.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 of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice 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 much does it rain in Jamestown in December?
How much does it snow in Jamestown in December?
What is the month with the shortest days in Jamestown?
What is the average length of the day in December in Jamestown?
When is the sunrise / sunset in December in Jamestown?
How many hours of sunshine does Jamestown have in December?
When is the lowest UV index in Jamestown?
What is the UV index reading in December in Jamestown?
Average temperature in December
Jamestown, KY
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 34°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in December
Jamestown, KY
- 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 (29.96"Hg).
Average wind speed in December
Jamestown, KY
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Jamestown, KY
- Average humidity in December: 80%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April, June, August, September, October and November (76%).
Average rainfall in December
Jamestown, KY
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is February (4.25").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days in December
Jamestown, KY
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (11.8 days).
Average snowfall in December
Jamestown, KY
- Average snowfall in December: 1.69"
The months with the highest snowfall are January and February (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Jamestown, KY
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jamestown, KY
- 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: 4h and 2min
The months with the most sunshine are June and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Jamestown, KY
- Average sunshine days in December: 12.9 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in December
Jamestown, KY
- 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
Jamestown, KY
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Jamestown, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
Jamestown, Kentucky, USA
Weather forecast for your location
2. Allow the app to use your location