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 month when Decatur experiences its coldest temperatures, averaging a high of 44.4°F (6.9°C) and a low of 28.4°F (-2°C).Humidity
In Decatur, the average relative humidity in January is 72%.Rainfall
In Decatur, in January, it is raining for 8.5 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 139.7 rainfall days, and 31.02" (788mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Decatur. In January, it is snowing for 3.4 days. Throughout January, 1.3" (33mm) of snow is accumulated. In Decatur, during the entire year, snow falls for 13.9 days and aggregates up to 4.8" (122mm) of snow.Daylight
In January, the average length of the day is 10h and 1min.On the first day of January, sunrise is at 7:29 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:42 pm CST.
Sunshine
January and December, with an average of 5.4h of sunshine, are months with the least sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Consider carefully! The reflective quality of snow can almost 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?
How cold is it in January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
What are the months with the least sunshine?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Decatur, AR
- Average high temperature in January: 44.4°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (44.4°F).
- Average low temperature in January: 28.4°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in January
Decatur, AR
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).
Average wind speed in January
Decatur, AR
- Average wind speed in January: 9.1mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in January
Decatur, AR
- Average humidity in January: 72%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Decatur, AR
- Average rainfall in January: 2.36"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in January
Decatur, AR
- Average rainfall days in January: 8.5 days
The month with the highest number of rainy days is May (15.5 days).
The months with the least rainy days are January and November (8.5 days).
Average snowfall in January
Decatur, AR
- Average snowfall in January: 1.3"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Decatur, AR
- Average snowfall days in January: 3.4 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Decatur, AR
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in January
Decatur, AR
- Average sunshine days in January: 19 days
The month with the most sunshine days is December (19.2 days).
The months with the least sunshine days are March and April (13.3 days).
Average UV index in January
Decatur, AR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Decatur, AR
- Average cloud cover in January: 40
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in January
Decatur, AR
- 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).
Decatur, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location