January weather forecast
Julien, IA

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Weather in January

January, the same as December, in Julien, Iowa, is another subzero cold winter month, with an average temperature varying between 12.4°F (-10.9°C) and 25°F (-3.9°C).

Temperature

January, with its average high-temperature of 25°F (-3.9°C) and an average low-temperature of 12.4°F (-10.9°C), holds the record as the coldest month.

Humidity

January and February, with an average relative humidity of 87%, are the most humid months.

Rainfall

The months with the least rainfall in Julien are January and February Rain falls for 4.8 days and accumulates 1.14" (29mm) of rain.

Snowfall

Months with snowfall in Julien, Iowa, are January through April, October through December. January is the month with the most snowfall. Snow falls for 12.8 days and accumulates 4.88" (124mm) of snow.

Daylight

In Julien, the average length of the day in January is 9h and 29min.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:40 pm. On the last day of January, in Julien, sunrise is at 7:18 am and sunset at 5:14 pm CST.

Sunshine

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

UV index

The months with the lowest UV index in Julien, Iowa, are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In January, the maximum UV index of 1 transforms into these recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What time of the year is the coldest in Julien?

Julien experiences its average lowest temperatures in January, reaching a peak of 25°F (-3.9°C) and a minimum of 12.4°F (-10.9°C).

How cold is it in Julien in January?

The average high-temperature, in January, in Julien, is 25°F (-3.9°C), while the average low-temperature is 12.4°F (-10.9°C).

What is the most humid month in Julien?

The months with the highest humidity are January and February, with an average relative humidity of 87%.

What is the average humidity in January in Julien?

The average relative humidity in January is 87%.

What is the driest month in Julien?

The months with the least rainfall in Julien are January and February Rain falls for 4.8 days and accumulates 1.14" (29mm) of rain.

How many days does it rain in January in Julien?

In January, the rain falls for 4.8 days. Throughout January, 1.14" (29mm) of precipitation is accumulated.

What is the snowiest month in Julien?

The month with the most snowfall in Julien is January, when snow falls for 12.8 days and typically aggregates up to 4.88" (124mm) of snow.

How many days does it snow in January in Julien?

In Julien, Iowa, during January, snow falls for 12.8 days and regularly aggregates up to 4.88" (124mm) of snow.

How many hours of daylight does Julien have in January?

In Julien, Iowa, the average day length in January is 9h and 29min.

When is the sunrise / sunset in January in Julien?

On the first day of January in Julien, Iowa, sunrise is at 7:32 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:14 pm CST.

What is the month with the least sunshine in Julien?

January has the least sunshine of the year, with an average of 3.5h of sunshine.

How many hours of sunshine does Julien have in January?

The average sunshine duration in January is 3.5h.

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

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

What is the UV index intensity in January in Julien?

In Julien, Iowa, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
31.5°F -0.3°C
25°F -3.9°C
28.6°F -1.9°C
Average low temperature
21°F -6.1°C
12.4°F -10.9°C
15.3°F -9.3°C
Average pressure
30.1" 765mmHg
30.13" 765mmHg
30.12" 765mmHg
Average wind speed
9.8mph 15.8km/h
10.2mph 16.4km/h
10.1mph 16.3km/h
Average max. wind speed
10.5mph 16.9km/h
10.8mph 17.4km/h
10.8mph 17.4km/h
Average wind speed gusts
15.3mph 24.6km/h
16.2mph 26.1km/h
16.3mph 26.2km/h
Average humidity
82%
87%
87%
Average rainfall
1.38" 35mm
1.14" 29mm
1.14" 29mm
Average rainfall days
6.3
4.8
4.4
Average snowfall
2.68" 68mm
4.88" 124mm
4.17" 106mm
Average snowfall days
9
12.8
10
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
4h 0min
3h 3min
3h 4min
Average sunshine days
17.5
15.7
14.7
Average UV index
1
1
2
Average cloud cover
59%
63%
59%
Average visibility
6mi 9.7km
5mi 8km
6mi 9.7km

Average temperature in January
Julien, IA

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

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in January: 12.4°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

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Average pressure in January
Julien, IA

Average pressure in January - Julien, IA
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in January
Julien, IA

Average wind speed in January - Julien, IA
  • Average wind speed in January: 10.2mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in January
Julien, IA

Average humidity in January - Julien, IA
  • Average humidity in January: 87%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in January
Julien, IA

Average rainfall in January - Julien, IA
  • Average rainfall in January: 1.14"

The wettest months (with the highest rainfall) are May and June (3.7").
The driest months (with the least rainfall) are January and February (1.14").

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Average rainfall days in January
Julien, IA

Average rainfall days in January - Julien, IA
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in January
Julien, IA

Average snowfall in January - Julien, IA
  • Average snowfall in January: 4.88"

The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Julien, IA

Average snowfall days in January - Julien, IA
  • Average snowfall days in January: 12.8 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Julien, IA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 3h and 3min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Julien, IA

Average sunshine days in January - Julien, IA
  • Average sunshine days in January: 15.7 days

The months with the most sunshine days are November and December (17.5 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in January
Julien, IA

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

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

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Average cloud cover in January
Julien, IA

Average cloud cover in January - Julien, 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).

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Average visibility in January
Julien, IA

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

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

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Julien, Iowa, USA

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