January weather forecast
Arthur, MO

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Weather in January

January, like December, in Arthur, Missouri, is a wintry winter month, with an average temperature fluctuating between 25.2°F (-3.8°C) and 39.9°F (4.4°C).

Temperature

January stands out as Arthur's coldest month, with temperatures ranging between an average high of 39.9°F (4.4°C) and a low of 25.2°F (-3.8°C).

Humidity

The average relative humidity in January is 72%.

Rainfall

January is the month with the least rainfall. Rain falls for 5 days and accumulates 0.79" (20mm) of precipitation.

Snowfall

Months with snowfall are January through March, May, October through December. In Arthur, during January, snow falls for 3.8 days and regularly aggregates up to 0.94" (24mm) of snow. Throughout the year, there are 12.2 snowfall days, and 4.29" (109mm) of snow is accumulated.

Daylight

In Arthur, the average length of the day in January is 9h and 53min.
On the first day of the month, sunrise is at 7:33 am and sunset at 5:08 pm. On the last day of January, sunrise is at 7:22 am and sunset at 5:38 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 5.3h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 2 in January translates into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

The coldest period is January, when temperatures fluctuate between an average high of 39.9°F (4.4°C) and a low of 25.2°F (-3.8°C).

Is January cold?

An average high-temperature, in January, in Arthur, is 39.9°F (4.4°C) and the average low-temperature is 25.2°F (-3.8°C).

What is the average humidity in January in Arthur?

The average relative humidity in January is 72%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 5 days and typically collects 0.79" (20mm) of precipitation.

How many days does it rain in January?

In Arthur, Missouri, in January, during 5 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Arthur, Missouri, in January, during 3.8 snowfall days, 0.94" (24mm) of snow is typically accumulated.

How many hours of daylight does Arthur have in January?

The average day length in January in Arthur, Missouri, is 9h and 53min.

When are sunrise and sunset in January in Arthur?

In January, on the first day of the month, sunrise is at 7:33 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:38 pm CST.

What is the month with the least sunshine?

With an average of 5.3h of sunshine, January has the least sunshine of the year.

How many hours of sunshine does Arthur have in January?

In January, the average sunshine duration is 5.3h.

What is the month with the lowest UV index?

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

How high is the UV index in January?

In Arthur, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
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
Arthur, MO

Average temperature in January - Arthur, MO
  • Average high temperature in January: 39.9°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in January: 25.2°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 (25.2°F).

Average pressure in January
Arthur, MO

Average pressure in January - Arthur, 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 (29.91"Hg).

Average wind speed in January
Arthur, MO

Average wind speed in January - Arthur, MO
  • Average wind speed in January: 9.9mph

The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in January
Arthur, MO

Average humidity in January - Arthur, MO
  • Average humidity in January: 72%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Arthur, MO

Average rainfall in January - Arthur, MO
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in January
Arthur, MO

Average rainfall days in January - Arthur, MO
  • Average rainfall days in January: 5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5 days).

Average snowfall in January
Arthur, MO

Average snowfall in January - Arthur, MO
  • Average snowfall in January: 0.94"

The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, June, July, August and September (0").

Average snowfall days in January
Arthur, MO

Average snowfall days in January - Arthur, MO
  • Average snowfall days in January: 3.8 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Arthur, MO

Average daylight in January / Average sunshine in January - Arthur, MO
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in January
Arthur, MO

Average sunshine days in January - Arthur, MO
  • Average sunshine days in January: 22.7 days

The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in January
Arthur, MO

Average UV index in January - Arthur, MO
  • Average UV index in January: 2

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Arthur, MO

Average cloud cover in January - Arthur, MO
  • Average cloud cover in January: 41

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in January
Arthur, MO

Average visibility in January - Arthur, 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).

Arthur, Missouri, USA

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