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 its average high-temperature of 44.8°F (7.1°C) and an average low-temperature of 29.5°F (-1.4°C), holds the record as the coldest month.Humidity
The average relative humidity in January is 76%.Rainfall
In Duncan, Tennessee, in January, it is raining for 11.1 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 148.2 rainfall days, and 18.23" (463mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, October through December. In Duncan, during January, snow falls for 5.4 days and regularly aggregates up to 0.87" (22mm) of snow. In Duncan, Tennessee, during the entire year, snow falls for 18.9 days and aggregates up to 3.58" (91mm) of snow.Daylight
The average length of the day in January is 10h and 4min.On the first day of January, sunrise is at 7:45 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 6:01 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 5.1h of sunshine.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 estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
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. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What are January temperatures?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Duncan have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Duncan, TN
- Average high temperature in January: 44.8°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in January: 29.5°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in January
Duncan, 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
Duncan, TN
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in January
Duncan, TN
- Average humidity in January: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall in January
Duncan, TN
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in January
Duncan, TN
- Average rainfall days in January: 11.1 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in January
Duncan, TN
- Average snowfall in January: 0.87"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in January
Duncan, TN
- Average snowfall days in January: 5.4 days
The month with the highest number of snowfall days is January (5.4 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
Duncan, TN
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in January
Duncan, TN
- Average sunshine days in January: 16 days
The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).
Average UV index in January
Duncan, 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
Duncan, TN
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in January
Duncan, TN
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Duncan, Tennessee, USA
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