January weather forecast
Colfax, IA

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Weather in January

January, the same as December, in Colfax, Iowa, is another subzero cold winter month, with an average temperature fluctuating between 27.3°F (-2.6°C) and 14.4°F (-9.8°C).

Temperature

The month of January, characterized by an average high of 27.3°F (-2.6°C) and a low of 14.4°F (-9.8°C), is recognized as the coldest.

Humidity

With an average relative humidity of 84%, January is the most humid month.

Rainfall

January is the month with the least rainfall in Colfax, Iowa. Rain falls for 3.6 days and accumulates 0.35" (9mm) of precipitation.

Snowfall

Months with snowfall in Colfax are January through May, October through December. January is the month with the most snowfall. Snow falls for 7.5 days and accumulates 1.46" (37mm) of snow.

Daylight

In Colfax, the average length of the day in January is 9h and 34min.
On the first day of the month, sunrise is at 7:39 am and sunset at 4:52 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:26 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.2h of sunshine.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Colfax. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Colfax?

January is the month that records the lowest temperatures in Colfax, Iowa, with averages ranging from a high of 27.3°F (-2.6°C) to a low of 14.4°F (-9.8°C).

How cold is it in Colfax in January?

The high-temperature, in January, in Colfax, records 27.3°F (-2.6°C), while the low-temperature is 14.4°F (-9.8°C).

What is the most humid month in Colfax?

With an average relative humidity of 84%, January is the most humid month.

What is the average humidity in January in Colfax?

In Colfax, Iowa, the average relative humidity in January is 84%.

What is the driest month in Colfax?

January is the month with the least rainfall. Rain falls for 3.6 days and accumulates 0.35" (9mm) of precipitation.

How much does it rain in Colfax in January?

In Colfax, Iowa, during January, the rain falls for 3.6 days and regularly aggregates up to 0.35" (9mm) of precipitation.

What is the snowiest month in Colfax?

The month with the most snowfall in Colfax is January, when snow falls for 7.5 days and typically aggregates up to 1.46" (37mm) of snow.

How many days does it snow in January in Colfax?

In January, in Colfax, it is snowing for 7.5 days. Throughout January, 1.46" (37mm) of snow is accumulated.

What is the average length of the day in January in Colfax?

In Colfax, the average day length in January is 9h and 34min.

When is the sunrise / sunset in January in Colfax?

On the first day of January in Colfax, Iowa, sunrise is at 7:39 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:26 pm CST.

What is the month with the least sunshine in Colfax?

January has the least sunshine of the year in Colfax, with an average of 4.2h of sunshine.

How many hours of sunshine does Colfax have in January?

The average sunshine duration in January in Colfax, Iowa, is 4.2h.

What are the months with the lowest UV index in Colfax?

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

What is the UV index reading in January in Colfax?

In Colfax, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Colfax, IA

Average temperature in January - Colfax, IA
  • Average high temperature in January: 27.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in January: 14.4°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in January
Colfax, IA

Average pressure in January - Colfax, 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 (29.89"Hg).

Average wind speed in January
Colfax, IA

Average wind speed in January - Colfax, IA
  • Average wind speed in January: 10.4mph

The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in January
Colfax, IA

Average humidity in January - Colfax, IA
  • Average humidity in January: 84%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Colfax, IA

Average rainfall in January - Colfax, IA
  • Average rainfall in January: 0.35"

The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in January
Colfax, IA

Average rainfall days in January - Colfax, IA
  • Average rainfall days in January: 3.6 days

The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in January
Colfax, IA

Average snowfall in January - Colfax, IA
  • Average snowfall in January: 1.46"

The month with the highest snowfall is January (1.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Colfax, IA

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

The month with the highest number of snowfall days is February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Colfax, IA
  • Average daylight in January: 9h and 4min

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 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in January
Colfax, IA

Average sunshine days in January - Colfax, IA
  • Average sunshine days in January: 21.8 days

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (12.1 days).

Average UV index in January
Colfax, IA

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

The months with the highest UV index are June, July and August (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
Colfax, IA

Average cloud cover in January - Colfax, IA
  • Average cloud cover in January: 54

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).

Average visibility in January
Colfax, IA

Average visibility in January - Colfax, IA
  • Average visibility in January: 6mi

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

Colfax, Iowa, USA

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