January weather forecast
Atalissa, IA

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Weather in January

January, the same as December, in Atalissa, Iowa, is another subzero cold winter month, with an average temperature fluctuating between 27.5°F (-2.5°C) and 15.4°F (-9.2°C).

Temperature

January stands out as Atalissa's coldest month, with an average high-temperature of 27.5°F (-2.5°C) and a low-temperature of 15.4°F (-9.2°C).

Humidity

In January, the average relative humidity in Atalissa is 83%.

Rainfall

In Atalissa, during January, the rain falls for 2.8 days and regularly aggregates up to 0.31" (8mm) of precipitation. Throughout the year, there are 92.5 rainfall days, and 7.68" (195mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 6.4 days and accumulates 1.1" (28mm) of snow.

Daylight

The average length of the day in January is 9h and 35min.
On the first day of the month, sunrise is at 7:31 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:18 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.1h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 1 translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January is the coldest month, exhibiting average temperatures of 27.5°F (-2.5°C) at the peak and 15.4°F (-9.2°C) at the base.

How cold is it in January?

In Atalissa, in January, the average high-temperature is 27.5°F (-2.5°C), and the average low-temperature is 15.4°F (-9.2°C).

What is the average humidity in January?

In Atalissa, the average relative humidity in January is 83%.

How many days does it rain in January?

In Atalissa, during January, the rain falls for 2.8 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When does it snow the most in Atalissa?

The month with the most snowfall is January, when snow falls for 6.4 days and typically aggregates up to 1.1" (28mm) of snow.

How much does it snow in January?

In January, in Atalissa, it is snowing for 6.4 days. Throughout January, 1.1" (28mm) of snow is accumulated.

What is the average length of the day in January?

In January, the average day length is 9h and 35min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:31 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:18 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4.1h of sunshine.

How long on average sun shines in January?

In Atalissa, the average sunshine duration in January is 4.1h.

When is the lowest UV index?

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

How high is the UV index in January in Atalissa?

In January, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes 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
Atalissa, IA

Average temperature in January - Atalissa, IA
  • Average high temperature in January: 27.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in January: 15.4°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in January
Atalissa, IA

Average pressure in January - Atalissa, IA
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in January
Atalissa, IA

Average wind speed in January - Atalissa, IA
  • Average wind speed in January: 10.4mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in January
Atalissa, IA

Average humidity in January - Atalissa, IA
  • Average humidity in January: 83%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in January
Atalissa, IA

Average rainfall in January - Atalissa, IA
  • Average rainfall in January: 0.31"

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is February (0.28").

Average rainfall days in January
Atalissa, IA

Average rainfall days in January - Atalissa, IA
  • Average rainfall days in January: 2.8 days

The month with the highest number of rainy days is June (13.2 days).
The month with the least rainy days is January (2.8 days).

Average snowfall in January
Atalissa, IA

Average snowfall in January - Atalissa, IA
  • Average snowfall in January: 1.1"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Atalissa, IA

Average snowfall days in January - Atalissa, IA
  • Average snowfall days in January: 6.4 days

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Atalissa, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in January
Atalissa, IA

Average sunshine days in January - Atalissa, IA
  • Average sunshine days in January: 23.8 days

The month with the most sunshine days is December (24.4 days).
The month with the least sunshine days is June (14.8 days).

Average UV index in January
Atalissa, IA

Average UV index in January - Atalissa, 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 December (UV index 1).

Average cloud cover in January
Atalissa, IA

Average cloud cover in January - Atalissa, IA
  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in January
Atalissa, IA

Average visibility in January - Atalissa, IA
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Atalissa, Iowa, USA

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