January weather forecast
Union Star, MO

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Weather in January

January, like December, in Union Star, Missouri, is another cold winter month, with temperature in the range of an average high of 34.2°F (1.2°C) and an average low of 20.3°F (-6.5°C).

Temperature

In Union Star, January is the coldest month, with temperatures averaging a high of 34.2°F (1.2°C) and a low of 20.3°F (-6.5°C).

Humidity

In Union Star, Missouri, the average relative humidity in January is 77%.

Rainfall

The months with the least rainfall in Union Star, Missouri, are January and February Rain falls for 3.8 days and accumulates 0.94" (24mm) of rain.

Snowfall

Months with snowfall in Union Star, Missouri, are January through May, October through December. January is the month with the most snowfall in Union Star. Snow falls for 7 days and accumulates 3.43" (87mm) of snow.

Daylight

In January, the average length of the day in Union Star is 9h and 43min.
On the first day of the month, sunrise is at 7:40 am and sunset at 5:03 pm. On the last day of January, in Union Star, sunrise is at 7:27 am and sunset at 5:35 pm CST.

Sunshine

January has the least sunshine of the year in Union Star, with an average of 4.8h of sunshine.

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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What are the coldest months in Union Star?

January is the month that records the lowest temperatures in Union Star, with averages ranging from a high of 34.2°F (1.2°C) to a low of 20.3°F (-6.5°C).

How cold is January in Union Star?

An average high-temperature, in January, in Union Star, is 34.2°F (1.2°C) and the average low-temperature is 20.3°F (-6.5°C).

What is the average humidity in January in Union Star?

In Union Star, the average relative humidity in January is 77%.

What is the driest month in Union Star?

January and February are months with the least rain in Union Star, Missouri, when the rain falls for 3.8 days and typically aggregates up to 0.94" (24mm) of rain.

How much does it rain in Union Star in January?

In January, the rain falls for 3.8 days. Throughout January, 0.94" (24mm) of precipitation is accumulated.

What is the snowiest month in Union Star?

January is the month with the most snowfall in Union Star, Missouri. Snow falls for 7 days and accumulates 3.43" (87mm) of snow.

How many days does it snow in January in Union Star?

In Union Star, in January, during 7 snowfall days, 3.43" (87mm) of snow is typically accumulated.

What is the average length of the day in January in Union Star?

In Union Star, Missouri, the average day length in January is 9h and 43min.

When are sunrise and sunset in January in Union Star?

In January, on the first day of the month, sunrise is at 7:40 am and sunset at 5:03 pm. On the last day of the month, in Union Star, sunrise is at 7:27 am and sunset at 5:35 pm CST.

What is the month with the least sunshine in Union Star?

With an average of 4.8h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Union Star?

In Union Star, the average sunshine duration in January is 4.8h.

What are the months with the lowest UV index in Union Star?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in January in Union Star?

In January, the average daily maximum UV index in Union Star, Missouri, is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
38.3°F 3.5°C
34.2°F 1.2°C
38.3°F 3.5°C
Average low temperature
25°F -3.9°C
20.3°F -6.5°C
23.5°F -4.7°C
Average pressure
30.13" 765mmHg
30.17" 766mmHg
30.14" 766mmHg
Average wind speed
9.2mph 14.8km/h
9.7mph 15.6km/h
9.9mph 15.9km/h
Average max. wind speed
9.9mph 15.9km/h
10.4mph 16.7km/h
10.6mph 17.1km/h
Average wind speed gusts
14.9mph 24km/h
15.6mph 25.1km/h
15.4mph 24.8km/h
Average humidity
76%
77%
74%
Average rainfall
1.1" 28mm
0.94" 24mm
0.94" 24mm
Average rainfall days
5.5
3.8
5
Average snowfall
1.73" 44mm
3.43" 87mm
2.91" 74mm
Average snowfall days
4.9
7
7.2
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
5h 2min
4h 5min
5h 3min
Average sunshine days
21
20.4
16.9
Average UV index
2
2
2
Average cloud cover
43%
46%
45%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Union Star, MO

Average temperature in January - Union Star, MO
  • Average high temperature in January: 34.2°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in January: 20.3°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 (20.3°F).

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Average pressure in January
Union Star, MO

Average pressure in January - Union Star, MO
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in January
Union Star, MO

Average wind speed in January - Union Star, MO
  • Average wind speed in January: 9.7mph

The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity in January
Union Star, MO

Average humidity in January - Union Star, MO
  • Average humidity in January: 77%

The month with the highest relative humidity is June (79%).
The months with the lowest relative humidity are October and November (70%).

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Average rainfall in January
Union Star, MO

Average rainfall in January - Union Star, MO
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January and February (0.94").

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Average rainfall days in January
Union Star, MO

Average rainfall days in January - Union Star, MO
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (3.8 days).

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Average snowfall in January
Union Star, MO

Average snowfall in January - Union Star, MO
  • Average snowfall in January: 3.43"

The month with the highest snowfall is January (3.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Union Star, MO

Average snowfall days in January - Union Star, MO
  • Average snowfall days in January: 7 days

The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Union Star, MO

Average daylight in January / Average sunshine in January - Union Star, 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 24min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days in January
Union Star, MO

Average sunshine days in January - Union Star, MO
  • Average sunshine days in January: 20.4 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in January
Union Star, MO

Average UV index in January - Union Star, MO
  • 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).

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Average cloud cover in January
Union Star, MO

Average cloud cover in January - Union Star, MO
  • Average cloud cover in January: 46

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in January
Union Star, MO

Average visibility in January - Union Star, 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).

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Union Star, Missouri, USA

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