January weather forecastUnionville, MO
January
Weather in January
January, the same as December, in Unionville, Missouri, is another subzero cold winter month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 17.1°F (-8.3°C).Temperature
January, with an average high of 30.7°F (-0.7°C) and a low of 17.1°F (-8.3°C), signifies the coldest month of the year.Humidity
In January, the average relative humidity in Unionville, Missouri, is 80%.Rainfall
January is the month with the least rainfall. Rain falls for 4.3 days and accumulates 0.87" (22mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Unionville. The month with the most snowfall in Unionville is January, when snow falls for 9.1 days and typically aggregates up to 3.86" (98mm) of snow.Daylight
The average length of the day in January is 9h and 40min.On the first day of January in Unionville, Missouri, sunrise is at 7:35 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:28 pm CST.
Sunshine
With an average of 4.2h of sunshine, January has the least sunshine of the year.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 1 during January leads to these advisories:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Unionville, MO
- Average high temperature in January: 30.7°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in January: 17.1°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in January
Unionville, MO
- 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 (29.89"Hg).
Average wind speed in January
Unionville, MO
- Average wind speed in January: 10.6mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in January
Unionville, MO
- Average humidity in January: 80%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
Unionville, MO
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in January
Unionville, MO
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is May (16.8 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in January
Unionville, MO
- Average snowfall in January: 3.86"
The month with the highest snowfall is January (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Unionville, MO
- Average snowfall days in January: 9.1 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Unionville, MO
- Average daylight in January: 9h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in January
Unionville, MO
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in January
Unionville, MO
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Unionville, MO
- Average cloud cover in January: 54
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in January
Unionville, 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).





