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
Rockvale's January weather reaches an average high of 45.1°F (7.3°C) and an average low of 30.7°F (-0.7°C), making it the coldest month.Humidity
The average relative humidity in January in Rockvale is 76%.Rainfall
In Rockvale, during January, the rain falls for 8.9 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 123.1 rainfall days, and 12.76" (324mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Rockvale, Tennessee, in January, during 3.8 snowfall days, 0.12" (3mm) of snow is typically accumulated. In Rockvale, during the entire year, snow falls for 10.9 days and aggregates up to 0.87" (22mm) of snow.Daylight
In Rockvale, Tennessee, the average length of the day in January is 10h and 4min.On the first day of January, sunrise is at 6:55 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 5:11 pm CST.
Sunshine
In Rockvale, the average sunshine in January is 4.6h.UV index
The months with the lowest UV index in Rockvale 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 unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 2 during January, leads to the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Rockvale?
What is the average January temperature in Rockvale?
What is the average humidity in January in Rockvale?
How much does it rain in Rockvale in January?
How many days does it snow in January in Rockvale?
What is the average length of the day in January in Rockvale?
What time are sunrise and sunset in January in Rockvale?
How long on average sun shines in January in Rockvale?
What is the month with the lowest UV index in Rockvale?
What is the UV index intensity in January in Rockvale?
Average temperature in January
Rockvale, TN
- Average high temperature in January: 45.1°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in January: 30.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in January
Rockvale, 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
Rockvale, TN
- Average wind speed in January: 7.6mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in January
Rockvale, TN
- Average humidity in January: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Rockvale, TN
- Average rainfall in January: 1.02"
The wettest month (with the highest rainfall) is February (1.5").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in January
Rockvale, TN
- Average rainfall days in January: 8.9 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in January
Rockvale, TN
- Average snowfall in January: 0.12"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Rockvale, 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 and September (0 days).
Average daylight in January /
Average sunshine in January
Rockvale, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Rockvale, TN
- Average sunshine days in January: 18.8 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in January
Rockvale, 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
Rockvale, TN
- Average cloud cover in January: 51
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in January
Rockvale, TN
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Rockvale, Tennessee, USA
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