January weather forecast
Atlantic, IA

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Weather in January

January, the same as December, in Atlantic, Iowa, is a freezing cold winter month, with an average temperature varying between 28.4°F (-2°C) and 15.1°F (-9.4°C).

Temperature

With average high temperatures of 28.4°F (-2°C) and lows of 15.1°F (-9.4°C), January is the coldest month.

Humidity

The most humid month in Atlantic is January, with an average relative humidity of 82%.

Rainfall

January is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.59" (15mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Atlantic, in January, during 8.7 snowfall days, 2.09" (53mm) of snow is typically accumulated. In Atlantic, during the entire year, snow falls for 32.3 days and aggregates up to 9.41" (239mm) of snow.

Daylight

In Atlantic, the average length of the day in January is 9h and 35min.
On the first day of January, sunrise is at 7:46 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:34 pm CST.

Sunshine

The month with the least sunshine in Atlantic is January, with an average of 4.5h of sunshine.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Atlantic. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 2 in January translates into these instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What part of the year is the coldest in Atlantic?

The coldest period is January, when temperatures fluctuate between an average high of 28.4°F (-2°C) and a low of 15.1°F (-9.4°C).

How cold is it in Atlantic in January?

The high-temperature in Atlantic during January is 28.4°F (-2°C) and the low-temperature is 15.1°F (-9.4°C).

What is the most humid month in Atlantic?

With an average relative humidity of 82%, January is the most humid month in Atlantic.

What is the average humidity in January in Atlantic?

In January, the average relative humidity in Atlantic, Iowa, is 82%.

What is the driest month in Atlantic?

The month with the least rainfall in Atlantic is January, when the rain falls for 3.8 days and typically collects 0.59" (15mm) of precipitation.

How much does it rain in Atlantic in January?

In Atlantic, Iowa, in January, during 3.8 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

How much does it snow in Atlantic in January?

In Atlantic, in January, during 8.7 snowfall days, 2.09" (53mm) of snow is typically accumulated.

How many hours of daylight does Atlantic have in January?

The average day length in January in Atlantic, Iowa, is 9h and 35min.

What time are sunrise and sunset in January in Atlantic?

In January, on the first day of the month, sunrise is at 7:46 am and sunset at 5:00 pm. On the last day of the month, in Atlantic, Iowa, sunrise is at 7:32 am and sunset at 5:34 pm CST.

What is the month with the least sunshine in Atlantic?

The month with the least sunshine in Atlantic is January, with an average of 4.5h of sunshine.

How many hours of sunshine does Atlantic have in January?

In Atlantic, Iowa, the average sunshine duration in January is 4.5h.

What are the months with the lowest UV index in Atlantic?

The months with the lowest UV index in Atlantic are January, February, October through December, with an average maximum UV index of 2.

What is the UV index intensity in January in Atlantic?

In January, the average daily maximum UV index in Atlantic, Iowa, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe 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
Atlantic, IA

Average temperature in January - Atlantic, IA
  • Average high temperature in January: 28.4°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in January: 15.1°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in January
Atlantic, IA

Average pressure in January - Atlantic, 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
Atlantic, IA

Average wind speed in January - Atlantic, IA
  • Average wind speed in January: 10.5mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in January
Atlantic, IA

Average humidity in January - Atlantic, IA
  • Average humidity in January: 82%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in January
Atlantic, IA

Average rainfall in January - Atlantic, IA
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in January
Atlantic, IA

Average rainfall days in January - Atlantic, IA
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).

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Average snowfall in January
Atlantic, IA

Average snowfall in January - Atlantic, IA
  • Average snowfall in January: 2.09"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Atlantic, IA

Average snowfall days in January - Atlantic, 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
Atlantic, IA

Average daylight in January / Average sunshine in January - Atlantic, IA
  • Average daylight in January: 9h and 4min

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

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in January
Atlantic, IA

Average sunshine days in January - Atlantic, IA
  • Average sunshine days in January: 18.9 days

The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in January
Atlantic, IA

Average UV index in January - Atlantic, IA
  • 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, October, November and December (UV index 2).

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Average cloud cover in January
Atlantic, IA

Average cloud cover in January - Atlantic, IA
  • Average cloud cover in January: 52

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in January
Atlantic, IA

Average visibility in January - Atlantic, 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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Atlantic, Iowa, USA

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