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
Vandalia records the coldest temperatures in January, averaging a high of 36°F (2.2°C) and a low of 23.4°F (-4.8°C).Humidity
The average relative humidity in January is 77%.Rainfall
In January, the rain falls for 9.2 days. Throughout January, 2.36" (60mm) of precipitation is accumulated. In Vandalia, during the entire year, the rain falls for 164.1 days and collects up to 36.73" (933mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Vandalia, in January, during 8.3 snowfall days, 2.24" (57mm) of snow is typically accumulated. In Vandalia, during the entire year, snow falls for 25.1 days and aggregates up to 8.19" (208mm) of snow.Daylight
In January, the average length of the day in Vandalia is 9h and 48min.On the first day of January, sunrise is at 7:15 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:15 pm CST.
Sunshine
The month with the least sunshine in Vandalia, Illinois, is January, with an average of 4.3h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Vandalia. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What is the coldest month in Vandalia?
How cold is it in Vandalia in January?
What is the average humidity in January in Vandalia?
How much does it rain in Vandalia in January?
How much does it snow in Vandalia in January?
What is the average length of the day in January in Vandalia?
What time are sunrise and sunset in January in Vandalia?
What is the month with the least sunshine in Vandalia?
How many hours of sunshine does Vandalia have in January?
What are the months with the lowest UV index in Vandalia?
How high is the UV index in January in Vandalia?
Average temperature in January
Vandalia, IL
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
Vandalia, 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 (29.93"Hg).
Average wind speed in January
Vandalia, IL
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in January
Vandalia, IL
- Average humidity in January: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Vandalia, IL
- Average rainfall in January: 2.36"
The wettest month (with the highest rainfall) is June (4.57").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in January
Vandalia, IL
- Average rainfall days in January: 9.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in January
Vandalia, IL
- Average snowfall in January: 2.24"
The month with the highest snowfall is December (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Vandalia, IL
- Average snowfall days in January: 8.3 days
The month with the highest number of snowfall days is January (8.3 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
Vandalia, IL
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Vandalia, IL
- Average sunshine days in January: 15.5 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in January
Vandalia, IL
- Average UV index in January: 2
The months with the highest UV index are 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
Vandalia, IL
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July and September (Cloud cover 30).
Average visibility in January
Vandalia, 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).
Vandalia, Illinois, USA
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