January weather forecast
Arthur, IA

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Weather in January

January, like December, is another subzero cold winter month in Arthur, Iowa, with an average temperature varying between 13.3°F (-10.4°C) and 25.5°F (-3.6°C).

Temperature

In Arthur, the month of January is known for its lowest average temperatures, reaching a high of 25.5°F (-3.6°C) and a low of 13.3°F (-10.4°C).

Humidity

With an average relative humidity of 84%, January is the most humid month.

Rainfall

January is the month with the least rainfall in Arthur. Rain falls for 2.3 days and accumulates 0.24" (6mm) of precipitation.

Snowfall

Months with snowfall in Arthur are January through April, October through December. In Arthur, Iowa, in January, during 7.7 snowfall days, 0.98" (25mm) of snow is typically accumulated. In Arthur, during the entire year, snow falls for 30.1 days and aggregates up to 4.49" (114mm) of snow.

Daylight

The average length of the day in January in Arthur is 9h and 31min.
On the first day of January, sunrise is at 7:50 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:33 pm CST.

Sunshine

January has the least sunshine of the year in Arthur, with an average of 4.2h of sunshine.

UV index

January and February, with an average maximum UV index of 1, are months with the lowest UV index in Arthur, Iowa. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 1 in January suggests the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What is the coldest time of year in Arthur?

With average temperatures fluctuating between a high of 25.5°F (-3.6°C) and a low of 13.3°F (-10.4°C), January stands out as the coldest month in Arthur.

How cold is January in Arthur?

During January, Arthur experiences an average high-temperature of 25.5°F (-3.6°C) and a low-temperature of 13.3°F (-10.4°C).

What is the most humid month in Arthur?

The most humid month in Arthur is January, with an average relative humidity of 84%.

What is the average humidity in January in Arthur?

In January, the average relative humidity in Arthur is 84%.

What is the driest month in Arthur?

The month with the least rainfall is January, when the rain falls for 2.3 days and typically collects 0.24" (6mm) of precipitation.

How much does it rain in Arthur in January?

In Arthur, in January, it is raining for 2.3 days, with typically 0.24" (6mm) of accumulated precipitation.

How many days does it snow in January in Arthur?

In Arthur, Iowa, in January, during 7.7 snowfall days, 0.98" (25mm) of snow is typically accumulated.

What is the average length of the day in January in Arthur?

In January, the average day length in Arthur, Iowa, is 9h and 31min.

When are sunrise and sunset in January in Arthur?

On the first day of January in Arthur, Iowa, sunrise is at 7:50 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:33 pm CST.

What is the month with the least sunshine in Arthur?

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

How long on average sun shines in January in Arthur?

In January, the average sunshine duration in Arthur, Iowa, is 4.2h.

What is the month with the lowest UV index in Arthur?

The months with the lowest UV index in Arthur are January and February, with an average maximum UV index of 1.

What is the UV index reading in January in Arthur?

In January, the average daily maximum UV index in Arthur is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's 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
Arthur, IA

Average temperature in January - Arthur, IA
  • Average high temperature in January: 25.5°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in January: 13.3°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

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Average pressure in January
Arthur, IA

Average pressure in January - Arthur, IA
  • 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 (29.87"Hg).

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Average wind speed in January
Arthur, IA

Average wind speed in January - Arthur, IA
  • Average wind speed in January: 11mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

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Average humidity in January
Arthur, IA

Average humidity in January - Arthur, IA
  • Average humidity in January: 84%

The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and October (67%).

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Average rainfall in January
Arthur, IA

Average rainfall in January - Arthur, IA
  • Average rainfall in January: 0.24"

The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is January (0.24").

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Average rainfall days in January
Arthur, IA

Average rainfall days in January - Arthur, IA
  • Average rainfall days in January: 2.3 days

The month with the highest number of rainy days is May (13.8 days).
The months with the least rainy days are January and February (2.3 days).

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Average snowfall in January
Arthur, IA

Average snowfall in January - Arthur, IA
  • Average snowfall in January: 0.98"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Arthur, IA

Average snowfall days in January - Arthur, IA
  • Average snowfall days in January: 7.7 days

The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Arthur, IA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in January
Arthur, IA

Average sunshine days in January - Arthur, IA
  • Average sunshine days in January: 22.4 days

The month with the most sunshine days is November (23 days).
The month with the least sunshine days is May (14.2 days).

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Average UV index in January
Arthur, IA

Average UV index in January - Arthur, IA
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).

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Average cloud cover in January
Arthur, IA

Average cloud cover in January - Arthur, IA
  • Average cloud cover in January: 55

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in January
Arthur, IA

Average visibility in January - Arthur, IA
  • 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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Arthur, Iowa, USA

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