January weather forecast
Marion, IA

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Weather in January

Begin the year with the chill of winter in Marion, Iowa where Covering the ground is snowfall totaling 5.79" (147mm). Residents adapt to the colder temperatures, layering clothing to stay warm and the city typically sees relatively high humidity adding to the discomfort. January skies are often cloudy or overcast, limiting the amount of strong sunshine. As daylight hours are limited, it remains vital to take advantage of the sunshine during mid-day for some outdoor activities. Windy conditions often accompany the predominantly cold, winter days.

Temperature

The month of January, characterized by an average high of 26.2°F (-3.2°C) and a low of 14.2°F (-9.9°C), is recognized as the coldest in Marion.

Humidity

January is the most humid month, with an average relative humidity of 85%.

Rainfall

The month with the least rainfall in Marion, Iowa, is January, when the rain falls for 5.2 days and typically collects 1.34" (34mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Marion. January is the month with the most snowfall in Marion. Snow falls for 12.7 days and accumulates 5.79" (147mm) of snow.

Daylight

In Marion, the average length of the day in January is 9h and 32min.
On the first day of the month, sunrise is at 7:34 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:19 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4h of sunshine.

UV index

In January, the average daily maximum UV index in Marion is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 2 in January transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the coldest months in Marion?

January tends to be the coldest month in Marion, Iowa, with temperatures averaging a daily high of 26.2°F (-3.2°C) and a low of 14.2°F (-9.9°C).

How cold is it in Marion in January?

During January, Marion experiences an average high-temperature of 26.2°F (-3.2°C) and a low-temperature of 14.2°F (-9.9°C).

What is the most humid month in Marion?

January is the most humid month in Marion, Iowa, with an average relative humidity of 85%.

What is the average humidity in January in Marion?

In January, the average relative humidity is 85%.

What is the driest month in Marion?

The month with the least rainfall is January, when the rain falls for 5.2 days and typically collects 1.34" (34mm) of precipitation.

How much does it rain in Marion in January?

In Marion, Iowa, in January, during 5.2 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When does it snow the most in Marion?

January is the month with the most snowfall in Marion, Iowa. Snow falls for 12.7 days and accumulates 5.79" (147mm) of snow.

How many days does it snow in January in Marion?

In Marion, in January, during 12.7 snowfall days, 5.79" (147mm) of snow is typically accumulated.

How many hours of daylight does Marion have in January?

The average day length in January in Marion is 9h and 32min.

What time are sunrise and sunset in January in Marion?

On the first day of January in Marion, sunrise is at 7:34 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:19 pm CST.

What is the month with the least sunshine in Marion?

The month with the least sunshine in Marion is January, with an average of 4h of sunshine.

How many hours of sunshine does Marion have in January?

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

What is the UV index reading in January in Marion?

The average daily maximum UV index in January in Marion is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
33.1°F 0.6°C
26.2°F -3.2°C
30.6°F -0.8°C
Average low temperature
22.3°F -5.4°C
14.2°F -9.9°C
17.4°F -8.1°C
Average pressure
30.11" 765mmHg
30.14" 766mmHg
30.12" 765mmHg
Average wind speed
10mph 16.1km/h
10.6mph 17.1km/h
10.6mph 17.1km/h
Average max. wind speed
10.7mph 17.2km/h
11.2mph 18km/h
11.2mph 18km/h
Average wind speed gusts
15.8mph 25.4km/h
16.7mph 26.9km/h
16.6mph 26.7km/h
Average humidity
81%
85%
83%
Average rainfall
1.57" 40mm
1.34" 34mm
1.38" 35mm
Average rainfall days
6.8
5.2
5.2
Average snowfall
3.11" 79mm
5.79" 147mm
5.04" 128mm
Average snowfall days
9.5
12.7
10.3
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
4h 2min
4h 0min
4h 1min
Average sunshine days
16.8
15.5
14
Average UV index
1
2
2
Average cloud cover
55%
58%
56%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Marion, IA

Average temperature in January - Marion, IA
  • Average high temperature in January: 26.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in January: 14.2°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

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Average pressure in January
Marion, IA

Average pressure in January - Marion, 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).

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Average wind speed in January
Marion, IA

Average wind speed in January - Marion, IA
  • Average wind speed in January: 10.6mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in January
Marion, IA

Average humidity in January - Marion, IA
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in January
Marion, IA

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

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in January
Marion, IA

Average rainfall days in January - Marion, IA
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is May (19 days).
The months with the least rainy days are January and February (5.2 days).

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Average snowfall in January
Marion, IA

Average snowfall in January - Marion, IA
  • Average snowfall in January: 5.79"

The month with the highest snowfall is January (5.79").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Marion, IA

Average snowfall days in January - Marion, IA
  • Average snowfall days in January: 12.7 days

The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Marion, 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 12min).

  • Average sunshine in January: 4h and 0min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in January
Marion, IA

Average sunshine days in January - Marion, IA
  • Average sunshine days in January: 15.5 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (8.1 days).

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Average UV index in January
Marion, IA

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in January
Marion, IA

Average cloud cover in January - Marion, IA
  • Average cloud cover in January: 58

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in January
Marion, IA

Average visibility in January - Marion, 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).

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Marion, Iowa, USA

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