January weather forecast
Des Moines, IA

City buildings in Des Moines, Iowa
City buildings in Des Moines, Iowa

Weather in January

January, like December, is another subzero cold winter month in Des Moines, Iowa, with an average temperature fluctuating between 28.2°F (-2.1°C) and 15.1°F (-9.4°C).

Temperature

January is the coldest month, with an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 15.1°F (-9.4°C).

Humidity

The months with the highest humidity are January and June, with an average relative humidity of 82%.

Rainfall

January is the month with the least rainfall. Rain falls for 4 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall in Des Moines. Snow falls for 8.7 days and accumulates 2.24" (57mm) of snow.

Daylight

In Des Moines, Iowa, the average length of the day in January is 9h and 34min.
On the first day of January in Des Moines, sunrise is at 7:41 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:28 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.3h of sunshine.

UV index

With an average maximum UV index of 1, January is the month with the lowest UV index in Des Moines. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 1 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Des Moines?

With an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 15.1°F (-9.4°C), January is the coldest month in Des Moines, Iowa.

What are the most humid months in Des Moines?

January and June, with an average relative humidity of 82%, are most humid months in Des Moines.

What is the average humidity in January in Des Moines?

In Des Moines, the average relative humidity in January is 82%.

What is the driest month in Des Moines?

January is the month with the least rainfall. Rain falls for 4 days and accumulates 0.47" (12mm) of precipitation.

How many days does it rain in January in Des Moines?

In January, in Des Moines, the rain falls for 4 days. Throughout January, 0.47" (12mm) of precipitation is accumulated.

What is the snowiest month in Des Moines?

January is the month with the most snowfall. Snow falls for 8.7 days and accumulates 2.24" (57mm) of snow.

How much does it snow in Des Moines in January?

In Des Moines, Iowa, during January, snow falls for 8.7 days and regularly aggregates up to 2.24" (57mm) of snow.

How many hours of daylight does Des Moines have in January?

In Des Moines, Iowa, the average day length in January is 9h and 34min.

When are sunrise and sunset in January in Des Moines?

In January, on the first day of the month, sunrise is at 7:41 am and sunset at 4:55 pm. On the last day of the month, in Des Moines, sunrise is at 7:26 am and sunset at 5:28 pm CST.

What is the month with the least sunshine in Des Moines?

The month with the least sunshine in Des Moines, Iowa, is January, with an average of 4.3h of sunshine.

How many hours of sunshine does Des Moines have in January?

The average sunshine duration in January in Des Moines, Iowa, is 4.3h.

What is the month with the lowest UV index in Des Moines?

With an average maximum UV index of 1, January is the month with the lowest UV index.

How high is the UV index in January in Des Moines?

In January, the average daily maximum UV index in Des Moines, Iowa, is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Des Moines, IA

Average temperature in January - Des Moines, IA
  • Average high temperature in January: 28.2°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in January: 15.1°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in January
Des Moines, IA

Average pressure in January - Des Moines, 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 (29.88"Hg).

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Average wind speed in January
Des Moines, IA

Average wind speed in January - Des Moines, IA
  • Average wind speed in January: 10.3mph

The windiest months (with the highest average wind speed) are January, February, March and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in January
Des Moines, IA

Average humidity in January - Des Moines, IA
  • Average humidity in January: 82%

The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in January
Des Moines, IA

Average rainfall in January - Des Moines, IA
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in January
Des Moines, IA

Average rainfall days in January - Des Moines, IA
  • Average rainfall days in January: 4 days

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3 days).

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Average snowfall in January
Des Moines, IA

Average snowfall in January - Des Moines, IA
  • Average snowfall in January: 2.24"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Des Moines, IA

Average snowfall days in January - Des Moines, IA
  • Average snowfall days in January: 8.7 days

The month with the highest number of snowfall days is January (8.7 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
Des Moines, IA

Average daylight in January / Average sunshine in January - Des Moines, IA
  • Average daylight in January: 9h and 34min

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • Average sunshine in January: 4h and 18min

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 18min).

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Average sunshine days in January
Des Moines, IA

Average sunshine days in January - Des Moines, IA
  • Average sunshine days in January: 20.3 days

The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is June (12.2 days).

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Average UV index in January
Des Moines, IA

Average UV index in January - Des Moines, IA
  • 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).

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Average cloud cover in January
Des Moines, IA

Average cloud cover in January - Des Moines, IA
  • 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 July and September (Cloud cover 29).

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Average visibility in January
Des Moines, IA

Average visibility in January - Des Moines, 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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