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 is the coldest month of the year, registering average temperatures as high as 43.2°F (6.2°C) and as low as 28.9°F (-1.7°C).Humidity
In January, the average relative humidity in Round Rock is 78%.Rainfall
In Round Rock, in January, it is raining for 13.6 days, with typically 3.43" (87mm) of accumulated precipitation. Throughout the year, in Round Rock, Tennessee, there are 184.3 rainfall days, and 40.16" (1020mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In January, it is snowing for 7.1 days. Throughout January, 1.73" (44mm) of snow is accumulated. Throughout the year, in Round Rock, Tennessee, there are 22.9 snowfall days, and 6.61" (168mm) of snow is accumulated.Daylight
In Round Rock, the average length of the day in January is 10h and 1min.On the first day of January, sunrise is at 7:48 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 6:01 pm EST.
Sunshine
The month with the least sunshine in Round Rock is January, with an average of 4.8h 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 of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 2 during January, leads to 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. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Round Rock?
How cold is it in Round Rock in January?
What is the average humidity in January in Round Rock?
How much does it rain in Round Rock in January?
How many days does it snow in January in Round Rock?
What is the average length of the day in January in Round Rock?
When is the sunrise / sunset in January in Round Rock?
What is the month with the least sunshine in Round Rock?
How long on average sun shines in January in Round Rock?
When is the lowest UV index in Round Rock?
How high is the UV index in January in Round Rock?
Average temperature in January
Round Rock, TN
- Average high temperature in January: 43.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in January: 28.9°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in January
Round Rock, 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 (29.98"Hg).
Average wind speed in January
Round Rock, 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 (3.5mph).
Average humidity in January
Round Rock, TN
- Average humidity in January: 78%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, July and August (75%).
Average rainfall in January
Round Rock, TN
- Average rainfall in January: 3.43"
The wettest month (with the highest rainfall) is February (4.8").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in January
Round Rock, TN
- Average rainfall days in January: 13.6 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in January
Round Rock, TN
- Average snowfall in January: 1.73"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Round Rock, 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
Round Rock, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in January
Round Rock, TN
- Average sunshine days in January: 12.5 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in January
Round Rock, 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
Round Rock, TN
- Average cloud cover in January: 52
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in January
Round Rock, TN
- Average visibility in January: 5mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
Round Rock, Tennessee, USA
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