January weather forecast
Blairstown, IA

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Weather in January

January, the same as December, in Blairstown, Iowa, is a freezing cold winter month, with an average temperature fluctuating between 13.5°F (-10.3°C) and 25.9°F (-3.4°C).

Temperature

The coldest month is January, with an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 13.5°F (-10.3°C).

Humidity

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

Rainfall

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

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 9.6 days and accumulates 5.24" (133mm) of snow.

Daylight

The average length of the day in January is 9h and 32min.
On the first day of January, sunrise is at 7:35 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:21 pm CST.

Sunshine

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

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. 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 2 suggests these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Blairstown?

January stands out as Blairstown's coldest month, with temperatures ranging between an average high of 25.9°F (-3.4°C) and a low of 13.5°F (-10.3°C).

How cold is January?

During January, Blairstown experiences an average high-temperature of 25.9°F (-3.4°C) and a low-temperature of 13.5°F (-10.3°C).

What is the most humid month?

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

What is the average humidity in January?

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

What is the driest month?

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

How much does it rain in January?

In Blairstown, in January, during 4.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 9.6 days and typically aggregates up to 5.24" (133mm) of snow.

How many days does it snow in January in Blairstown?

In Blairstown, in January, snow falls for 9.6 days, with typically accumulated 5.24" (133mm) of snow.

What is the average length of the day in January?

In January, the average day length is 9h and 32min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:35 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:21 pm CST.

What is the month with the least sunshine?

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

How many hours of sunshine does Blairstown have in January?

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

What are the months with the lowest UV index?

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2.

How high is the UV index in January?

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

Average temperature in January - Blairstown, IA
  • Average high temperature in January: 25.9°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in January: 13.5°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 (13.5°F).

Average pressure in January
Blairstown, IA

Average pressure in January - Blairstown, 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
Blairstown, IA

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

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

Average humidity in January
Blairstown, IA

Average humidity in January - Blairstown, 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 (72%).

Average rainfall in January
Blairstown, IA

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

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in January
Blairstown, IA

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

The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in January
Blairstown, IA

Average snowfall in January - Blairstown, IA
  • Average snowfall in January: 5.24"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Blairstown, IA

Average snowfall days in January - Blairstown, IA
  • Average snowfall days in January: 9.6 days

The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Blairstown, 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 month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in January
Blairstown, IA

Average sunshine days in January - Blairstown, IA
  • Average sunshine days in January: 18.2 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is June (8.4 days).

Average UV index in January
Blairstown, IA

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in January
Blairstown, IA

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

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in January
Blairstown, IA

Average visibility in January - Blairstown, 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).

Blairstown, Iowa, USA

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