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
Rockdale notes the coldest temperatures in January, with a high average of 45.3°F (7.4°C) and a low of 30.9°F (-0.6°C).Humidity
The average relative humidity in January is 76%.Rainfall
In Rockdale, Tennessee, in January, during 12.3 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. Throughout the year, in Rockdale, there are 172.4 rainfall days, and 38.43" (976mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Rockdale, in January, snow falls for 2.8 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, there are 8.9 snowfall days, and 2.8" (71mm) of snow is accumulated.Daylight
In Rockdale, the average length of the day in January is 10h and 5min.On the first day of January, sunrise is at 6:58 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 5:15 pm CST.
Sunshine
January and February, with an average of 4.6h of sunshine, are months with the least sunshine.UV index
In Rockdale, the average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In January, a daily UV index of 3 turns into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What are January temperatures?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Rockdale have in January?
What is the UV index reading in January in Rockdale?
Average temperature in January
Rockdale, TN
- Average high temperature in January: 45.3°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 (45.3°F).
- Average low temperature in January: 30.9°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 (30.9°F).
Average pressure in January
Rockdale, 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
Rockdale, TN
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in January
Rockdale, TN
- Average humidity in January: 76%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Rockdale, TN
- Average rainfall in January: 3.15"
The wettest months (with the highest rainfall) are February and July (4.06").
The driest month (with the least rainfall) is September (2.36").
Average rainfall days in January
Rockdale, TN
- Average rainfall days in January: 12.3 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in January
Rockdale, TN
- Average snowfall in January: 0.79"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Rockdale, TN
- Average snowfall days in January: 2.8 days
The months with the highest number of snowfall days are January and February (2.8 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
Rockdale, 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 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in January
Rockdale, TN
- Average sunshine days in January: 16.1 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in January
Rockdale, 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
Rockdale, 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 30).
Average visibility in January
Rockdale, 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).
Rockdale, Tennessee, USA
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