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, on average, is the coldest month, registering a high temperature of 45.1°F (7.3°C) and a low of 30.2°F (-1°C).Humidity
The months with the lowest humidity are January, June through November, with an average relative humidity of 76%.Rainfall
In January, the rain falls for 11.4 days. Throughout January, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 163.6 rainfall days, and 37.44" (951mm) of precipitation is accumulated.Snowfall
Months with snowfall in Dayton are January through April, November and December. The month with the most snowfall is January, when snow falls for 2.8 days and typically aggregates up to 0.67" (17mm) of snow.Daylight
In Dayton, the average length of the day in January is 10h and 5min.On the first day of January, sunrise is at 7:49 am and sunset at 5:37 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 6:06 pm EST.
Sunshine
In Dayton, Tennessee, the average sunshine in January is 4.9h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Dayton. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In January, the maximum UV index of 2 suggests these recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. To protect against the Sun's most potent rays, avoid direct exposure around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Dayton?
What are January temperatures in Dayton?
What is the least humid month in Dayton?
What is the average humidity in January in Dayton?
How many days does it rain in January in Dayton?
What is the snowiest month in Dayton?
How much does it snow in Dayton in January?
What is the average length of the day in January in Dayton?
When is the sunrise / sunset in January in Dayton?
How long on average sun shines in January in Dayton?
When is the lowest UV index in Dayton?
What is the UV index reading in January in Dayton?
Average temperature in January
Dayton, TN
- Average high temperature in January: 45.1°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in January: 30.2°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 (30.2°F).
Average pressure in January
Dayton, 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
Dayton, TN
- Average wind speed in January: 6.3mph
The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in January
Dayton, TN
- Average humidity in January: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are January, June, July, August, September, October and November (76%).
Average rainfall in January
Dayton, TN
- Average rainfall in January: 2.76"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in January
Dayton, TN
- Average rainfall days in January: 11.4 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in January
Dayton, TN
- Average snowfall in January: 0.67"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Dayton, TN
- Average snowfall days in January: 2.8 days
The month with the highest number of snowfall days is January (2.8 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
Dayton, 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: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in January
Dayton, TN
- Average sunshine days in January: 17.2 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in January
Dayton, 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
Dayton, TN
- Average cloud cover in January: 50
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in January
Dayton, TN
- Average visibility in January: 5mi
The months with the highest visibility are February, June, October and November (6mi).
The months with the lowest visibility are January, March, April, May, July, August, September and December (5mi).
Dayton, Tennessee, USA
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