January weather forecastSummertown, TN
January
Weather in January
January, the same as December, in Summertown, Tennessee, is another chilly winter month, with temperature in the range of an average low of 31.8°F (-0.1°C) and an average high of 45.9°F (7.7°C).Temperature
In Summertown, Tennessee, the month of January registers the lowest temperatures, averaging 45.9°F (7.7°C) at the peak and 31.8°F (-0.1°C) at the lowest.Humidity
The average relative humidity in January in Summertown is 76%.Rainfall
In Summertown, during January, the rain falls for 11.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 165.6 rainfall days, and 30.39" (772mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In January, it is snowing for 1.8 days. Throughout January, 0.12" (3mm) of snow is accumulated. Throughout the year, there are 6.8 snowfall days, and 0.59" (15mm) of snow is accumulated.Daylight
The average length of the day in January is 10h and 5min.On the first day of the month, sunrise is at 6:58 am and sunset at 4:47 pm. On the last day of January, sunrise is at 6:49 am and sunset at 5:15 pm CST.
Sunshine
In January, the average sunshine in Summertown is 4.8h.UV index
The average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 3 in January translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Summertown, TN
- Average high temperature in January: 45.9°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in January: 31.8°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in January
Summertown, TN
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in January
Summertown, TN
- Average wind speed in January: 8.4mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in January
Summertown, TN
- Average humidity in January: 76%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
Summertown, TN
- Average rainfall in January: 2.4"
The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in January
Summertown, TN
- Average rainfall days in January: 11.5 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in January
Summertown, TN
- Average snowfall in January: 0.12"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Summertown, TN
- Average snowfall days in January: 1.8 days
The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Summertown, TN
- Average daylight in January: 10h and 6min
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: 4h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Summertown, TN
- Average sunshine days in January: 16.6 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in January
Summertown, TN
- Average UV index in January: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in January
Summertown, TN
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in January
Summertown, TN
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
