January weather forecast
Barnum, IA

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Weather in January

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

Temperature

January is the month when Barnum experiences its coldest temperatures, averaging a high of 25°F (-3.9°C) and a low of 12.4°F (-10.9°C).

Humidity

With an average relative humidity of 85%, January is the most humid month in Barnum.

Rainfall

The month with the least rainfall is January, when the rain falls for 2.3 days and typically collects 0.24" (6mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Barnum, in January, during 7.5 snowfall days, 0.98" (25mm) of snow is typically accumulated. Throughout the year, there are 29.4 snowfall days, and 3.62" (92mm) of snow is accumulated.

Daylight

The average length of the day in January in Barnum, Iowa, is 9h and 29min.
On the first day of the month, sunrise is at 7:47 am and sunset at 4:54 pm. On the last day of January, sunrise is at 7:32 am and sunset at 5:29 pm CST.

Sunshine

With an average of 4h of sunshine, January has the least sunshine of the year.

UV index

January and February, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 1 in January transforms into the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

January is the coldest month, exhibiting average temperatures of 25°F (-3.9°C) at the peak and 12.4°F (-10.9°C) at the base.

How cold is January?

The average high-temperature and low-temperature during January are 25°F (-3.9°C) and 12.4°F (-10.9°C) respectively.

What is the most humid month?

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

What is the average humidity in January?

In Barnum, the average relative humidity in January is 85%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 2.3 days and typically collects 0.24" (6mm) of precipitation.

How many days does it rain in January?

In January, in Barnum, the rain falls for 2.3 days. Throughout January, 0.24" (6mm) of precipitation is accumulated.

How many days does it snow in January?

In January, it is snowing for 7.5 days. Throughout January, 0.98" (25mm) of snow is accumulated.

What is the average length of the day in January?

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

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:47 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:29 pm CST.

What is the month with the least sunshine in Barnum?

January has the least sunshine of the year, with an average of 4h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 4h.

What are the months with the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
Barnum, IA

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

The warmest month (with the highest average high temperature) is July (81°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 (63.7°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

Average pressure in January
Barnum, IA

Average pressure in January - Barnum, IA
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in January
Barnum, IA

Average wind speed in January - Barnum, IA
  • Average wind speed in January: 10.8mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in January
Barnum, IA

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

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).

Average rainfall in January
Barnum, IA

Average rainfall in January - Barnum, IA
  • Average rainfall in January: 0.24"

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in January
Barnum, IA

Average rainfall days in January - Barnum, IA
  • Average rainfall days in January: 2.3 days

The month with the highest number of rainy days is June (12 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in January
Barnum, IA

Average snowfall in January - Barnum, IA
  • Average snowfall in January: 0.98"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Barnum, IA

Average snowfall days in January - Barnum, IA
  • Average snowfall days in January: 7.5 days

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Barnum, 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: 4h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in January
Barnum, IA

Average sunshine days in January - Barnum, IA
  • Average sunshine days in January: 23.8 days

The month with the most sunshine days is December (24.3 days).
The month with the least sunshine days is June (15.5 days).

Average UV index in January
Barnum, IA

Average UV index in January - Barnum, 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 and February (UV index 1).

Average cloud cover in January
Barnum, IA

Average cloud cover in January - Barnum, IA
  • Average cloud cover in January: 57

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).

Average visibility in January
Barnum, IA

Average visibility in January - Barnum, 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).

Barnum, Iowa, USA

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