January weather forecast
Unionville, MO

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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.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Unionville?

The coldest temperatures in Unionville occur during January, when averages reach a peak of 30.7°F (-0.7°C) and a low of 17.1°F (-8.3°C).

How cold is it in Unionville in January?

The high-temperature, in January, in Unionville, is 30.7°F (-0.7°C), while the low-temperature averages to 17.1°F (-8.3°C).

What is the average humidity in January in Unionville?

The average relative humidity in January is 80%.

What is the driest month in Unionville?

The month with the least rainfall in Unionville, Missouri, is January, when the rain falls for 4.3 days and typically collects 0.87" (22mm) of precipitation.

How many days does it rain in January in Unionville?

In Unionville, in January, during 4.3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

When does it snow the most in Unionville?

January is the month with the most snowfall in Unionville, Missouri. Snow falls for 9.1 days and accumulates 3.86" (98mm) of snow.

How much does it snow in Unionville in January?

In Unionville, Missouri, in January, snow falls for 9.1 days, with typically accumulated 3.86" (98mm) of snow.

How many hours of daylight does Unionville have in January?

The average day length in January in Unionville, Missouri, is 9h and 40min.

When are sunrise and sunset in January in Unionville?

In January, on the first day of the month, 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.

What is the month with the least sunshine in Unionville?

With an average of 4.2h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Unionville?

In January, the average sunshine duration is 4.2h.

When is the lowest UV index in Unionville?

January is the month with the lowest UV index in Unionville, Missouri, with an average maximum UV index of 1.

How high is the UV index in January in Unionville?

The average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Unionville, MO

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in January - Unionville, MO
  • Average daylight in January: 9h and 4min

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 1min

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 - 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 - 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 - 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 - 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).

Unionville, Missouri, USA

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