January weather forecast
Ireton, IA

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Weather in January

January, like December, is a freezing cold winter month in Ireton, Iowa, with an average temperature ranging between min 11.3°F (-11.5°C) and max 25°F (-3.9°C).

Temperature

January brings the lowest temperatures, with an average high of 25°F (-3.9°C) and an average low of 11.3°F (-11.5°C).

Humidity

With an average relative humidity of 86%, January is the most humid month.

Rainfall

January and February are months with the least rain when the rain falls for 2.3 days and typically aggregates up to 0.16" (4mm) of rain.

Snowfall

January through May, October through December are months with snowfall. In January, it is snowing for 6.7 days. Throughout January, 0.59" (15mm) of snow is accumulated. Throughout the year, there are 27.5 snowfall days, and 2.76" (70mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 26min.
On the first day of January, sunrise is at 7:56 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:35 pm CST.

Sunshine

With an average of 4h of sunshine, January has the least sunshine of the year.

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 estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 2 in January interprets into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

In Ireton, January is known for its average lowest temperatures, reaching a high of 25°F (-3.9°C) and a low of 11.3°F (-11.5°C).

How cold is January?

The high-temperature during January is 25°F (-3.9°C) and the low-temperature is 11.3°F (-11.5°C).

What is the most humid month?

The most humid month is January, with an average relative humidity of 86%.

What is the average humidity in January in Ireton?

In Ireton, the average relative humidity in January is 86%.

What is the driest month?

January and February are months with the least rain when the rain falls for 2.3 days and typically aggregates up to 0.16" (4mm) of rain.

How many days does it rain in January?

In Ireton, in January, during 2.3 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

How much does it snow in Ireton in January?

In Ireton, in January, snow falls for 6.7 days, with typically accumulated 0.59" (15mm) of snow.

What is the average length of the day in January?

In Ireton, the average day length in January is 9h and 26min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:56 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:35 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4h of sunshine.

How many hours of sunshine does Ireton have in January?

In Ireton, the average sunshine duration in January is 4h.

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.

What is the UV index intensity in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Ireton, IA

Average temperature in January - Ireton, IA
  • Average high temperature in January: 25°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in January: 11.3°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

Average pressure in January
Ireton, IA

Average pressure in January - Ireton, 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 (29.86"Hg).

Average wind speed in January
Ireton, IA

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

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in January
Ireton, IA

Average humidity in January - Ireton, IA
  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (66%).

Average rainfall in January
Ireton, IA

Average rainfall in January - Ireton, IA
  • Average rainfall in January: 0.16"

The wettest month (with the highest rainfall) is June (1.06").
The driest months (with the least rainfall) are January and February (0.16").

Average rainfall days in January
Ireton, IA

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

The month with the highest number of rainy days is June (13 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in January
Ireton, IA

Average snowfall in January - Ireton, IA
  • Average snowfall in January: 0.59"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Ireton, IA

Average snowfall days in January - Ireton, IA
  • Average snowfall days in January: 6.7 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Ireton, IA
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 4h and 0min

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 0min).

Average sunshine days in January
Ireton, IA

Average sunshine days in January - Ireton, IA
  • Average sunshine days in January: 25 days

The month with the most sunshine days is December (26 days).
The month with the least sunshine days is June (13.2 days).

Average UV index in January
Ireton, IA

Average UV index in January - Ireton, IA
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Ireton, IA

Average cloud cover in January - Ireton, 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).

Average visibility in January
Ireton, IA

Average visibility in January - Ireton, 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).

Ireton, Iowa, USA

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