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, with its average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 23.4°F (-4.8°C), holds the record as the coldest month.Humidity
In South Roxana, the average relative humidity in January is 77%.Rainfall
In January, the rain falls for 5.6 days. Throughout January, 1.26" (32mm) of precipitation is accumulated. In South Roxana, during the entire year, the rain falls for 138 days and collects up to 23.9" (607mm) of precipitation.Snowfall
Months with snowfall in South Roxana are January through April, November and December. In South Roxana, in January, during 6 snowfall days, 1.18" (30mm) of snow is typically accumulated. In South Roxana, during the entire year, snow falls for 18.6 days and aggregates up to 4.53" (115mm) of snow.Daylight
The average length of the day in January in South Roxana is 9h and 49min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:48 pm. On the last day of January, in South Roxana, sunrise is at 7:07 am and sunset at 5:20 pm CST.
Sunshine
January and February, with an average of 4.5h of sunshine, are months with the least sunshine in South Roxana.UV index
January, February, November 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 minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What month is the coldest in South Roxana?
How cold is it in South Roxana in January?
What is the average humidity in January in South Roxana?
How many days does it rain in January in South Roxana?
How much does it snow in South Roxana in January?
How many hours of daylight does South Roxana have in January?
When is the sunrise / sunset in January in South Roxana?
What are the months with the least sunshine in South Roxana?
How long on average sun shines in January in South Roxana?
What is the month with the lowest UV index in South Roxana?
What is the UV index intensity in January in South Roxana?
Average temperature in January
South Roxana, IL
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
South Roxana, IL
- 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
South Roxana, IL
- Average wind speed in January: 9.6mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in January
South Roxana, IL
- Average humidity in January: 77%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
South Roxana, IL
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in January
South Roxana, IL
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in January
South Roxana, IL
- Average snowfall in January: 1.18"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
South Roxana, IL
- Average snowfall days in January: 6 days
The month with the highest number of snowfall days is January (6 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
South Roxana, IL
- 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in January
South Roxana, IL
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in January
South Roxana, IL
- 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, November and December (UV index 2).
Average cloud cover in January
South Roxana, IL
- Average cloud cover in January: 51
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in January
South Roxana, IL
- 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).
South Roxana, Illinois, USA
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