January weather forecast
Windham, IA

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Weather in January

January, the same as December, in Windham, Iowa, is a freezing cold winter month, with an average temperature varying between 15.3°F (-9.3°C) and 27.3°F (-2.6°C).

Temperature

Windham experiences its lowest average temperatures in January, reaching a peak of 27.3°F (-2.6°C) and a minimum of 15.3°F (-9.3°C).

Humidity

The months with the highest humidity are January and July, with an average relative humidity of 83%.

Rainfall

The months with the least rainfall are January and February Rain falls for 5.7 days and accumulates 1.34" (34mm) of rain.

Snowfall

Months with snowfall in Windham are January through April, October through December. The month with the most snowfall is January, when snow falls for 10.9 days and typically aggregates up to 5.28" (134mm) of snow.

Daylight

In January, the average length of the day is 9h and 34min.
On the first day of January, sunrise is at 7:33 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:20 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.2h of sunshine.

UV index

The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: In January, a daily UV index of 1 turns into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

The coldest time of the year in Windham is January, with temperatures averaging a high of 27.3°F (-2.6°C) and a low of 15.3°F (-9.3°C).

How cold is January?

January temperatures vary between a high-temperature of 27.3°F (-2.6°C) and a low-temperature of 15.3°F (-9.3°C).

What is the most humid month?

January and July, with an average relative humidity of 83%, are most humid months in Windham.

What is the average humidity in January?

In January, the average relative humidity is 83%.

What is the driest month?

January and February are months with the least rain when the rain falls for 5.7 days and typically aggregates up to 1.34" (34mm) of rain.

How many days does it rain in January?

In Windham, in January, it is raining for 5.7 days, with typically 1.34" (34mm) of accumulated precipitation.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 10.9 days and accumulates 5.28" (134mm) of snow.

How much does it snow in January?

In Windham, during January, snow falls for 10.9 days and regularly aggregates up to 5.28" (134mm) of snow.

What is the average length of the day in January?

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

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:33 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:20 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 in Windham?

In Windham, the average sunshine duration in January is 4.2h.

When is the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Windham, IA

Average temperature in January - Windham, IA
  • Average high temperature in January: 27.3°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 (27.3°F).

  • Average low temperature in January: 15.3°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 (15.3°F).

Average pressure in January
Windham, IA

Average pressure in January - Windham, 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
Windham, IA

Average wind speed in January - Windham, 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 (6.9mph).

Average humidity in January
Windham, IA

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

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

Average rainfall in January
Windham, IA

Average rainfall in January - Windham, IA
  • Average rainfall in January: 1.34"

The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (1.34").

Average rainfall days in January
Windham, IA

Average rainfall days in January - Windham, IA
  • Average rainfall days in January: 5.7 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5 days).

Average snowfall in January
Windham, IA

Average snowfall in January - Windham, IA
  • Average snowfall in January: 5.28"

The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Windham, IA

Average snowfall days in January - Windham, IA
  • Average snowfall days in January: 10.9 days

The month with the highest number of snowfall days is January (10.9 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
Windham, IA

Average daylight in January / Average sunshine in January - Windham, 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 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in January
Windham, IA

Average sunshine days in January - Windham, IA
  • Average sunshine days in January: 16.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).

Average UV index in January
Windham, IA

Average UV index in January - Windham, IA
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in January
Windham, IA

Average cloud cover in January - Windham, 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
Windham, IA

Average visibility in January - Windham, 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).

Windham, Iowa, USA

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