January weather forecastHeiskell, TN
January
Weather in January
January, the same as December, in Heiskell, Tennessee, is a frosty winter month, with an average temperature varying between 44.8°F (7.1°C) and 29.3°F (-1.5°C).Temperature
In Heiskell, the lowest average temperatures are observed in January, with a high of 44.8°F (7.1°C) and a low of 29.3°F (-1.5°C).Humidity
The average relative humidity in January in Heiskell is 76%.Rainfall
In Heiskell, during January, the rain falls for 10.9 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 148.9 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
Months with snowfall in Heiskell are January through April, November and December. In January, it is snowing for 3.8 days. Throughout January, 0.87" (22mm) of snow is accumulated. In Heiskell, during the entire year, snow falls for 11.5 days and aggregates up to 3.94" (100mm) of snow.Daylight
The average length of the day in January in Heiskell is 10h and 2min.On the first day of January, sunrise is at 7:46 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:01 pm EST.
Sunshine
With an average of 4.9h of sunshine, January has the least sunshine of the year in Heiskell.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Heiskell. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Heiskell, TN
- Average high temperature in January: 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 (44.8°F).
- Average low temperature in January: 29.3°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in January
Heiskell, TN
- Average pressure in January: 30.16"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Heiskell, TN
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in January
Heiskell, TN
- Average humidity in January: 76%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall in January
Heiskell, TN
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in January
Heiskell, TN
- Average rainfall days in January: 10.9 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in January
Heiskell, TN
- Average snowfall in January: 0.87"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Heiskell, TN
- Average snowfall days in January: 3.8 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Heiskell, 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 48min).
- Average sunshine in January: 4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in January
Heiskell, TN
- Average sunshine days in January: 17 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in January
Heiskell, 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
Heiskell, TN
- Average cloud cover in January: 50
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in January
Heiskell, TN
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
