January weather forecast
Sigourney, IA

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Weather in January

January, the same as December, in Sigourney, Iowa, is another subzero cold winter month, with temperature in the range of an average low of 15.6°F (-9.1°C) and an average high of 28.6°F (-1.9°C).

Temperature

January is the coldest month, with an average high-temperature of 28.6°F (-1.9°C) and an average low-temperature of 15.6°F (-9.1°C).

Humidity

In January, the average relative humidity is 82%.

Rainfall

In January, the rain falls for 5.8 days. Throughout January, 1.06" (27mm) of precipitation is accumulated. In Sigourney, during the entire year, the rain falls for 137.9 days and collects up to 27.76" (705mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is January, when snow falls for 9.5 days and typically aggregates up to 4.06" (103mm) of snow.

Daylight

In January, the average length of the day is 9h and 36min.
On the first day of January, sunrise is at 7:34 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:23 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: In January, the maximum UV index of 2 suggests this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. To protect against the Sun's most potent rays, avoid direct exposure around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January, known for its average high temperature of 28.6°F (-1.9°C) and an average low temperature of 15.6°F (-9.1°C), is the coldest month.

How cold is it in Sigourney in January?

In January, the average high-temperature and low-temperature are 28.6°F (-1.9°C) and 15.6°F (-9.1°C) respectively.

What is the average humidity in January in Sigourney?

The average relative humidity in January is 82%.

How much does it rain in January?

In January, the rain falls for 5.8 days. Throughout January, 1.06" (27mm) of precipitation is accumulated.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 9.5 days and typically aggregates up to 4.06" (103mm) of snow.

How many days does it snow in January?

In Sigourney, in January, during 9.5 snowfall days, 4.06" (103mm) of snow is typically accumulated.

How many hours of daylight does Sigourney have in January?

The average day length in January is 9h and 36min.

What time are sunrise and sunset in January?

On the first day of January in Sigourney, sunrise is at 7:34 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:23 pm CST.

What is the month with the least sunshine?

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

How long on average sun shines in January?

The average sunshine duration in January is 4.2h.

When is the lowest UV index?

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

What is the UV index reading in January?

In Sigourney, the average daily maximum UV index in January is 2. A UV Index 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
Sigourney, IA

Average temperature in January - Sigourney, IA
  • Average high temperature in January: 28.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in January: 15.6°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 (15.6°F).

Average pressure in January
Sigourney, IA

Average pressure in January - Sigourney, IA
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in January
Sigourney, IA

Average wind speed in January - Sigourney, IA
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in January
Sigourney, IA

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in January
Sigourney, IA

Average rainfall in January - Sigourney, IA
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").

Average rainfall days in January
Sigourney, IA

Average rainfall days in January - Sigourney, IA
  • Average rainfall days in January: 5.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in January
Sigourney, IA

Average snowfall in January - Sigourney, IA
  • Average snowfall in January: 4.06"

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Sigourney, IA

Average snowfall days in January - Sigourney, IA
  • Average snowfall days in January: 9.5 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Sigourney, 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 18min).

  • Average sunshine in January: 4h and 1min

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 12min).

Average sunshine days in January
Sigourney, IA

Average sunshine days in January - Sigourney, IA
  • Average sunshine days in January: 16.6 days

The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in January
Sigourney, IA

Average UV index in January - Sigourney, 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, October, November and December (UV index 2).

Average cloud cover in January
Sigourney, IA

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

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).

Average visibility in January
Sigourney, IA

Average visibility in January - Sigourney, 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).

Sigourney, Iowa, USA

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