January weather forecast
Troy Mills, IA

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Weather in January

January, the same as December, in Troy Mills, Iowa, is another subzero cold winter month, with an average temperature varying between 25.3°F (-3.7°C) and 13.5°F (-10.3°C).

Temperature

Troy Mills experiences its lowest temperatures in January, with an average peak of 25.3°F (-3.7°C) and a low of 13.5°F (-10.3°C).

Humidity

With an average relative humidity of 86%, January is the most humid month in Troy Mills.

Rainfall

The months with the least rainfall are January and February Rain falls for 4.8 days and accumulates 1.18" (30mm) of rain.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Troy Mills is January, when snow falls for 11.8 days and typically aggregates up to 5.43" (138mm) of snow.

Daylight

The average length of the day in January in Troy Mills is 9h and 31min.
On the first day of the month, sunrise is at 7:35 am and sunset at 4:44 pm. On the last day of January, in Troy Mills, sunrise is at 7:21 am and sunset at 5:19 pm CST.

Sunshine

With an average of 3.9h of sunshine, January has the least sunshine of the year in Troy Mills, Iowa.

UV index

In Troy Mills, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, an average UV index of 2 transforms into the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Troy Mills?

Troy Mills, Iowa, notes the coldest temperatures in January, with a average high of 25.3°F (-3.7°C) and a low of 13.5°F (-10.3°C).

How cold is it in Troy Mills in January?

In Troy Mills, in January, the average high-temperature is 25.3°F (-3.7°C), and the average low-temperature is 13.5°F (-10.3°C).

What is the most humid month in Troy Mills?

The most humid month is January, with an average relative humidity of 86%.

What is the average humidity in January in Troy Mills?

In Troy Mills, Iowa, the average relative humidity in January is 86%.

What is the driest month in Troy Mills?

The months with the least rainfall are January and February Rain falls for 4.8 days and accumulates 1.18" (30mm) of rain.

How much does it rain in Troy Mills in January?

In January, the rain falls for 4.8 days. Throughout January, 1.18" (30mm) of precipitation is accumulated.

When does it snow the most in Troy Mills?

January is the month with the most snowfall in Troy Mills. Snow falls for 11.8 days and accumulates 5.43" (138mm) of snow.

How many days does it snow in January in Troy Mills?

In Troy Mills, Iowa, during January, snow falls for 11.8 days and regularly aggregates up to 5.43" (138mm) of snow.

What is the average length of the day in January in Troy Mills?

In January, the average day length in Troy Mills, Iowa, is 9h and 31min.

When are sunrise and sunset in January in Troy Mills?

In January, on the first day of the month, sunrise is at 7:35 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:19 pm CST.

What is the month with the least sunshine in Troy Mills?

January has the least sunshine of the year in Troy Mills, Iowa, with an average of 3.9h of sunshine.

How many hours of sunshine does Troy Mills have in January?

In January, the average sunshine duration in Troy Mills, Iowa, is 3.9h.

How high is the UV index in January in Troy Mills?

In Troy Mills, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Troy Mills, IA

Average temperature in January - Troy Mills, IA
  • Average high temperature in January: 25.3°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).

  • Average low temperature in January: 13.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in January
Troy Mills, IA

Average pressure in January - Troy Mills, 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
Troy Mills, IA

Average wind speed in January - Troy Mills, 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).

Average humidity in January
Troy Mills, IA

Average humidity in January - Troy Mills, IA
  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (73%).

Average rainfall in January
Troy Mills, IA

Average rainfall in January - Troy Mills, IA
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is May (4.37").
The driest months (with the least rainfall) are January and February (1.18").

Average rainfall days in January
Troy Mills, IA

Average rainfall days in January - Troy Mills, IA
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in January
Troy Mills, IA

Average snowfall in January - Troy Mills, IA
  • Average snowfall in January: 5.43"

The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Troy Mills, IA

Average snowfall days in January - Troy Mills, IA
  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Troy Mills, IA

Average daylight in January / Average sunshine in January - Troy Mills, 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: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in January
Troy Mills, IA

Average sunshine days in January - Troy Mills, IA
  • Average sunshine days in January: 15.9 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).

Average UV index in January
Troy Mills, IA

Average UV index in January - Troy Mills, 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).

Average cloud cover in January
Troy Mills, IA

Average cloud cover in January - Troy Mills, IA
  • Average cloud cover in January: 59

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in January
Troy Mills, IA

Average visibility in January - Troy Mills, 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).

Troy Mills, Iowa, USA

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