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
The month of January, characterized by an average high of 55°F (12.8°C) and a low of 38.3°F (3.5°C), is recognized as the coldest.Humidity
The average relative humidity in January is 77%.Rainfall
In January, the rain falls for 11.3 days. Throughout January, 2.95" (75mm) of precipitation is accumulated. Throughout the year, in Roy, there are 165.6 rainfall days, and 36.06" (916mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. In Roy, during January, snow falls for 0.8 days and regularly aggregates up to 0.35" (9mm) of snow. In Roy, during the entire year, snow falls for 2.7 days and aggregates up to 1.06" (27mm) of snow.Daylight
In January, the average length of the day is 10h and 19min.On the first day of the month, sunrise is at 6:55 am and sunset at 5:00 pm. On the last day of January, sunrise is at 6:49 am and sunset at 5:27 pm CST.
Sunshine
In January, the average sunshine is 5.2h.UV index
The average daily maximum UV index in January in Roy is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 3 in January interprets into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. Around midday, solar radiation is most harmful; hence, exposure should be limited. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. 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 is the average January temperature?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Roy have in January?
What is the UV index reading in January?
Average temperature in January
Roy, MS
- Average high temperature in January: 55°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in January: 38.3°F
The months with the highest average low temperature are July and August (71.8°F).
The coldest month (with the lowest average low temperature) is January (38.3°F).
Average pressure in January
Roy, MS
- 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 (29.96"Hg).
Average wind speed in January
Roy, MS
- Average wind speed in January: 6.9mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in January
Roy, MS
- Average humidity in January: 77%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Roy, MS
- Average rainfall in January: 2.95"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in January
Roy, MS
- Average rainfall days in January: 11.3 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (8 days).
Average snowfall in January
Roy, MS
- Average snowfall in January: 0.35"
The month with the highest snowfall is December (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Roy, MS
- Average snowfall days in January: 0.8 days
The months with the highest number of snowfall days are January and December (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Roy, MS
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in January
Roy, MS
- Average sunshine days in January: 17.8 days
The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in January
Roy, MS
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in January
Roy, MS
- Average cloud cover in January: 44
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in January
Roy, MS
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, June, October and November (6mi).
The months with the lowest visibility are January, May, July, August, September and December (5mi).
Roy, Mississippi, USA
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