Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, with average temperatures reaching a high of 41.7°F (5.4°C) and a low of 27.7°F (-2.4°C), is the coldest month.Humidity
In Jamestown, the average relative humidity in January is 79%.Rainfall
In Jamestown, in January, during 11.2 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, in Jamestown, there are 170.9 rainfall days, and 37.68" (957mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Jamestown. In January, in Jamestown, it is snowing for 7.1 days. Throughout January, 2.56" (65mm) of snow is accumulated. Throughout the year, in Jamestown, there are 26.1 snowfall days, and 9.72" (247mm) of snow is accumulated.Daylight
The average length of the day in January is 10h and 1min.On the first day of the month, sunrise is at 6:51 am and sunset at 4:34 pm. On the last day of January, in Jamestown, Tennessee, sunrise is at 6:41 am and sunset at 5:04 pm CST.
Sunshine
The average sunshine in January is 4.3h.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 hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 during January leads to these advisories:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What part of the year is the coldest in Jamestown?
Is it cold in Jamestown during January?
What is the average humidity in January in Jamestown?
How many days does it rain in January in Jamestown?
How much does it snow in Jamestown in January?
How many hours of daylight does Jamestown have in January?
What time are sunrise and sunset in January in Jamestown?
How many hours of sunshine does Jamestown have in January?
When is the lowest UV index in Jamestown?
What is the UV index reading in January in Jamestown?
Average temperature in January
Jamestown, TN
- Average high temperature in January: 41.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in January: 27.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in January
Jamestown, TN
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in January
Jamestown, TN
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in January
Jamestown, TN
- Average humidity in January: 79%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are April, June, August, October and November (77%).
Average rainfall in January
Jamestown, TN
- Average rainfall in January: 2.95"
The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in January
Jamestown, TN
- Average rainfall days in January: 11.2 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in January
Jamestown, TN
- Average snowfall in January: 2.56"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Jamestown, TN
- Average snowfall days in January: 7.1 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jamestown, TN
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 4h and 2min
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 12min).
Average sunshine days in January
Jamestown, TN
- Average sunshine days in January: 13.9 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in January
Jamestown, TN
- Average UV index in January: 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 January
Jamestown, TN
- Average cloud cover in January: 55
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in January
Jamestown, TN
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Jamestown, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location
