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
Rock Hill's January weather, with an average high temperature of 37.8°F (3.2°C) and an average low temperature of 24.3°F (-4.3°C), tends to be the coldest of the year.Humidity
In Rock Hill, the average relative humidity in January is 75%.Rainfall
In Rock Hill, during January, the rain falls for 6.5 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Rock Hill. In Rock Hill, during January, snow falls for 4.7 days and regularly aggregates up to 2.24" (57mm) of snow. In Rock Hill, Missouri, during the entire year, snow falls for 16.2 days and aggregates up to 8.19" (208mm) of snow.Daylight
In Rock Hill, the average length of the day in January is 9h and 50min.On the first day of January, sunrise is at 7:19 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:21 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4.6h 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 estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In January, a regular UV index of 2 translates into these guidelines:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Rock Hill?
How cold does it get in January?
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?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Rock Hill 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 Hill, MO
- Average high temperature in January: 37.8°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in January
Rock Hill, MO
- 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 (29.92"Hg).
Average wind speed in January
Rock Hill, MO
- Average wind speed in January: 9.2mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in January
Rock Hill, MO
- Average humidity in January: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Rock Hill, MO
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in January
Rock Hill, MO
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in January
Rock Hill, MO
- Average snowfall in January: 2.24"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Rock Hill, MO
- Average snowfall days in January: 4.7 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Rock Hill, MO
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in January
Rock Hill, MO
- Average sunshine days in January: 21 days
The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in January
Rock Hill, MO
- 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
Rock Hill, MO
- Average cloud cover in January: 50
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Rock Hill, MO
- 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).
Rock Hill, Missouri, USA
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