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 52°F (11.1°C) and as low as 35.4°F (1.9°C).Humidity
The average relative humidity in January is 75%.Rainfall
In January, the rain falls for 12.3 days. Throughout January, 3.35" (85mm) of precipitation is accumulated. Throughout the year, there are 181.7 rainfall days, and 39.06" (992mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. The month with the most snowfall is January, when snow falls for 1.3 days and typically aggregates up to 0.47" (12mm) of snow.Daylight
In Rock Mills, the average length of the day in January is 10h and 15min.On the first day of the month, sunrise is at 6:44 am and sunset at 4:44 pm. On the last day of January, sunrise is at 6:37 am and sunset at 5:11 pm CST.
Sunshine
In January, the average sunshine is 5.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 3 translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What are the temperatures in January?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How much does it snow in January?
How many hours of daylight does Rock Mills have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Rock Mills have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Rock Mills, AL
- Average high temperature in January: 52°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (52°F).
- Average low temperature in January: 35.4°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in January
Rock Mills, AL
- 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 (29.98"Hg).
Average wind speed in January
Rock Mills, AL
- Average wind speed in January: 7.6mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in January
Rock Mills, AL
- Average humidity in January: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Rock Mills, AL
- Average rainfall in January: 3.35"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (1.93").
Average rainfall days in January
Rock Mills, AL
- Average rainfall days in January: 12.3 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in January
Rock Mills, AL
- Average snowfall in January: 0.47"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Rock Mills, AL
- Average snowfall days in January: 1.3 days
The month with the highest number of snowfall days is January (1.3 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
Rock Mills, AL
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 5h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days in January
Rock Mills, AL
- Average sunshine days in January: 17.1 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in January
Rock Mills, AL
- Average UV index in January: 3
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, November and December (UV index 3).
Average cloud cover in January
Rock Mills, AL
- Average cloud cover in January: 43
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in January
Rock Mills, AL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Rock Mills, Alabama, USA
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