January weather forecast
Navan, IA

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Weather in January

January, like December, is a freezing cold winter month in Navan, Iowa, with an average temperature fluctuating between 10.6°F (-11.9°C) and 22.8°F (-5.1°C).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 22.8°F (-5.1°C) and a low of 10.6°F (-11.9°C).

Humidity

January is the most humid month in Navan, with an average relative humidity of 89%.

Rainfall

January is the month with the least rainfall in Navan, Iowa. Rain falls for 4.5 days and accumulates 1.18" (30mm) of precipitation.

Snowfall

Months with snowfall in Navan are January through May, October through December. In Navan, Iowa, in January, during 14.5 snowfall days, 5.31" (135mm) of snow is typically accumulated. Throughout the year, there are 59.9 snowfall days, and 24.84" (631mm) of snow is accumulated.

Daylight

In Navan, the average length of the day in January is 9h and 26min.
On the first day of the month, sunrise is at 7:39 am and sunset at 4:43 pm. On the last day of January, in Navan, Iowa, sunrise is at 7:24 am and sunset at 5:18 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.5h 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 reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 in January interprets into the following advice:
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. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Navan?

During the coldest month in Navan, January, temperatures average a high of 22.8°F (-5.1°C) and a low of 10.6°F (-11.9°C).

How cold is January in Navan?

The high-temperature, in January, in Navan, is 22.8°F (-5.1°C), while the low-temperature averages to 10.6°F (-11.9°C).

What is the most humid month in Navan?

The most humid month in Navan, Iowa, is January, with an average relative humidity of 89%.

What is the average humidity in January in Navan?

In January, the average relative humidity in Navan is 89%.

What is the driest month in Navan?

The month with the least rainfall is January, when the rain falls for 4.5 days and typically collects 1.18" (30mm) of precipitation.

How many days does it rain in January in Navan?

In Navan, Iowa, during January, the rain falls for 4.5 days and regularly aggregates up to 1.18" (30mm) of precipitation.

How much does it snow in Navan in January?

In Navan, Iowa, during January, snow falls for 14.5 days and regularly aggregates up to 5.31" (135mm) of snow.

What is the average length of the day in January in Navan?

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

What time are sunrise and sunset in January in Navan?

In January, on the first day of the month, sunrise is at 7:39 am and sunset at 4:43 pm. On the last day of the month, in Navan, Iowa, sunrise is at 7:24 am and sunset at 5:18 pm CST.

What is the month with the least sunshine in Navan?

The month with the least sunshine in Navan is January, with an average of 3.5h of sunshine.

How long on average sun shines in January in Navan?

In January, the average sunshine duration in Navan is 3.5h.

What is the month with the lowest UV index in Navan?

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

What is the UV index reading in January in Navan?

The average daily maximum UV index in January in Navan is 1. A UV Index value of 2, and less, symbolizes a low health risk 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
Navan, IA

Average temperature in January - Navan, IA
  • Average high temperature in January: 22.8°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in January: 10.6°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

Average pressure in January
Navan, IA

Average pressure in January - Navan, 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 (29.89"Hg).

Average wind speed in January
Navan, IA

Average wind speed in January - Navan, 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 (7.1mph).

Average humidity in January
Navan, IA

Average humidity in January - Navan, IA
  • Average humidity in January: 89%

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (75%).

Average rainfall in January
Navan, IA

Average rainfall in January - Navan, IA
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in January
Navan, IA

Average rainfall days in January - Navan, IA
  • Average rainfall days in January: 4.5 days

The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in January
Navan, IA

Average snowfall in January - Navan, IA
  • Average snowfall in January: 5.31"

The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Navan, IA

Average snowfall days in January - Navan, IA
  • Average snowfall days in January: 14.5 days

The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Navan, 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: 3h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in January
Navan, IA

Average sunshine days in January - Navan, IA
  • Average sunshine days in January: 13.6 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.9 days).

Average UV index in January
Navan, IA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
Navan, IA

Average cloud cover in January - Navan, IA
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in January
Navan, IA

Average visibility in January - Navan, IA
  • Average visibility in January: 5mi

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

Navan, Iowa, USA

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