January weather forecast
Manly, IA

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Weather in January

January, like December, is another subzero cold winter month in Manly, Iowa, with an average temperature ranging between max 21.6°F (-5.8°C) and min 9°F (-12.8°C).

Temperature

January is the coldest month, exhibiting average temperatures of 21.6°F (-5.8°C) at the peak and 9°F (-12.8°C) at the base.

Humidity

With an average relative humidity of 90%, January is the most humid month.

Rainfall

January is the month with the least rainfall in Manly. Rain falls for 4.5 days and accumulates 0.94" (24mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Manly, Iowa. In Manly, in January, snow falls for 13.8 days, with typically accumulated 4.84" (123mm) of snow. Throughout the year, in Manly, there are 57 snowfall days, and 22.83" (580mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 25min.
On the first day of January, sunrise is at 7:44 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:22 pm CST.

Sunshine

January has the least sunshine of the year in Manly, with an average of 3.4h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 1 suggests 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. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What part of the year is the coldest in Manly?

Temperature records in Manly, Iowa, mark January as the coldest month, with highs averaging 21.6°F (-5.8°C) and lows at 9°F (-12.8°C).

How cold is it in Manly in January?

During January, Manly experiences an average high-temperature of 21.6°F (-5.8°C) and a low-temperature of 9°F (-12.8°C).

What is the most humid month in Manly?

January is the most humid month, with an average relative humidity of 90%.

What is the average humidity in January in Manly?

In Manly, Iowa, the average relative humidity in January is 90%.

What is the driest month in Manly?

The month with the least rainfall in Manly, Iowa, is January, when the rain falls for 4.5 days and typically collects 0.94" (24mm) of precipitation.

How much does it rain in Manly in January?

In Manly, in January, during 4.5 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

How much does it snow in Manly in January?

In Manly, in January, snow falls for 13.8 days, with typically accumulated 4.84" (123mm) of snow.

How many hours of daylight does Manly have in January?

In January, the average day length is 9h and 25min.

What time are sunrise and sunset in January in Manly?

On the first day of January in Manly, Iowa, sunrise is at 7:44 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:22 pm CST.

What is the month with the least sunshine in Manly?

With an average of 3.4h of sunshine, January has the least sunshine of the year in Manly.

How long on average sun shines in January in Manly?

In Manly, the average sunshine duration in January is 3.4h.

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

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

What is the UV index reading in January in Manly?

The average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
27.3°F -2.6°C
21.6°F -5.8°C
25.3°F -3.7°C
Average low temperature
16.5°F -8.6°C
9°F -12.8°C
12.4°F -10.9°C
Average pressure
30.11" 765mmHg
30.14" 766mmHg
30.14" 766mmHg
Average wind speed
10.1mph 16.3km/h
10.7mph 17.2km/h
10.6mph 17.1km/h
Average max. wind speed
10.8mph 17.4km/h
11.4mph 18.3km/h
11.2mph 18km/h
Average wind speed gusts
16.2mph 26.1km/h
17mph 27.4km/h
16.8mph 27km/h
Average humidity
87%
90%
88%
Average rainfall
1.3" 33mm
0.94" 24mm
1.18" 30mm
Average rainfall days
5.5
4.5
2.9
Average snowfall
3.66" 93mm
4.84" 123mm
5.94" 151mm
Average snowfall days
12.6
13.8
12.2
Average daylight
9h 0min
9h 2min
10h 3min
Average sunshine
3h 5min
3h 2min
3h 4min
Average sunshine days
14.7
14.1
13.8
Average UV index
1
1
1
Average cloud cover
61%
65%
61%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in January
Manly, IA

Average temperature in January - Manly, IA
  • Average high temperature in January: 21.6°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in January: 9°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).

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Average pressure in January
Manly, IA

Average pressure in January - Manly, IA
  • Average pressure in January: 30.14"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in January
Manly, IA

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

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 (7.4mph).

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Average humidity in January
Manly, IA

Average humidity in January - Manly, IA
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (72%).

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Average rainfall in January
Manly, IA

Average rainfall in January - Manly, IA
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in January
Manly, IA

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

The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (2.9 days).

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Average snowfall in January
Manly, IA

Average snowfall in January - Manly, IA
  • Average snowfall in January: 4.84"

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Manly, IA

Average snowfall days in January - Manly, IA
  • Average snowfall days in January: 13.8 days

The month with the highest number of snowfall days is January (13.8 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
Manly, IA

Average daylight in January / Average sunshine in January - Manly, 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 0min).

  • Average sunshine in January: 3h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

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Average sunshine days in January
Manly, IA

Average sunshine days in January - Manly, IA
  • Average sunshine days in January: 14.1 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (9.1 days).

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Average UV index in January
Manly, IA

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

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

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Average cloud cover in January
Manly, IA

Average cloud cover in January - Manly, IA
  • Average cloud cover in January: 65

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in January
Manly, IA

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

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

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Manly, Iowa, USA

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