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
Temperature records mark January as the coldest month, with highs averaging 42.3°F (5.7°C) and lows at 26.6°F (-3°C).Humidity
The months with the lowest humidity in Mount Vernon are January, July, August and October, with an average relative humidity of 73%.Rainfall
In January, the rain falls for 7.3 days. Throughout January, 1.93" (49mm) of precipitation is accumulated. In Mount Vernon, Missouri, during the entire year, the rain falls for 155.3 days and collects up to 35.59" (904mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Mount Vernon, during January, snow falls for 5.1 days and regularly aggregates up to 2.13" (54mm) of snow. In Mount Vernon, during the entire year, snow falls for 17.9 days and aggregates up to 6.93" (176mm) of snow.Daylight
In Mount Vernon, the average length of the day in January is 9h and 58min.On the first day of the month, sunrise is at 7:28 am and sunset at 5:08 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:38 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 5.3h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Mount Vernon, Missouri. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the UV index of 2 transforms into the following advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. 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 month is the coldest?
How cold is it in January?
What are the least humid months?
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 long on average sun shines in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Mount Vernon, MO
- Average high temperature in January: 42.3°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in January: 26.6°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in January
Mount Vernon, MO
- 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
Mount Vernon, MO
- Average wind speed in January: 9.9mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in January
Mount Vernon, MO
- Average humidity in January: 73%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, July, August and October (73%).
Average rainfall in January
Mount Vernon, MO
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is May (5.31").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in January
Mount Vernon, MO
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Mount Vernon, MO
- Average snowfall in January: 2.13"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Mount Vernon, MO
- Average snowfall days in January: 5.1 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Mount Vernon, MO
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 42min).
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 June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in January
Mount Vernon, MO
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in January
Mount Vernon, 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 and December (UV index 2).
Average cloud cover in January
Mount Vernon, MO
- Average cloud cover in January: 42
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in January
Mount Vernon, 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).
Mount Vernon, Missouri, USA
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