January weather forecast
Ironton, WI

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Weather in January

January, the same as December, in Ironton, Wisconsin, is a freezing cold winter month, with an average temperature ranging between max 22.3°F (-5.4°C) and min 9.9°F (-12.3°C).

Temperature

January is the month when Ironton sees the lowest average temperatures, with a high of 22.3°F (-5.4°C) and a low of 9.9°F (-12.3°C).

Humidity

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

Rainfall

The month with the least rainfall in Ironton is January, when the rain falls for 2.9 days and typically collects 0.79" (20mm) of precipitation.

Snowfall

Months with snowfall in Ironton are January through April, October through December. In Ironton, during January, snow falls for 13 days and regularly aggregates up to 3.78" (96mm) of snow. In Ironton, during the entire year, snow falls for 54.1 days and aggregates up to 17.09" (434mm) of snow.

Daylight

In January, the average length of the day in Ironton is 9h and 23min.
On the first day of January, sunrise is at 7:33 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:09 pm CST.

Sunshine

With an average of 3h of sunshine, January has the least sunshine of the year in Ironton.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Ironton, Wisconsin. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What month is the coldest in Ironton?

In Ironton, January registers the lowest temperatures, averaging 22.3°F (-5.4°C) at the peak and 9.9°F (-12.3°C) at the lowest.

How cold is January in Ironton?

January temperatures in Ironton vary between a high-temperature of 22.3°F (-5.4°C) and a low-temperature of 9.9°F (-12.3°C).

What is the most humid month in Ironton?

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

What is the average humidity in January in Ironton?

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

What is the driest month in Ironton?

The month with the least rainfall in Ironton, Wisconsin, is January, when the rain falls for 2.9 days and typically collects 0.79" (20mm) of precipitation.

How many days does it rain in January in Ironton?

In January, the rain falls for 2.9 days. Throughout January, 0.79" (20mm) of precipitation is accumulated.

How many days does it snow in January in Ironton?

In Ironton, Wisconsin, in January, snow falls for 13 days, with typically accumulated 3.78" (96mm) of snow.

How many hours of daylight does Ironton have in January?

In Ironton, Wisconsin, the average day length in January is 9h and 23min.

What time are sunrise and sunset in January in Ironton?

In January, on the first day of the month, sunrise is at 7:33 am and sunset at 4:34 pm. On the last day of the month, in Ironton, Wisconsin, sunrise is at 7:17 am and sunset at 5:09 pm CST.

What is the month with the least sunshine in Ironton?

The month with the least sunshine in Ironton is January, with an average of 3h of sunshine.

How long on average sun shines in January in Ironton?

The average sunshine duration in January in Ironton, Wisconsin, is 3h.

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

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

How high is the UV index in January in Ironton?

The average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
28.8°F -1.8°C
22.3°F -5.4°C
26.2°F -3.2°C
Average low temperature
18.3°F -7.6°C
9.9°F -12.3°C
12.7°F -10.7°C
Average pressure
30.09" 764mmHg
30.12" 765mmHg
30.11" 765mmHg
Average wind speed
9.1mph 14.6km/h
9.3mph 15km/h
9.4mph 15.1km/h
Average max. wind speed
9.8mph 15.8km/h
10mph 16.1km/h
10mph 16.1km/h
Average wind speed gusts
14.5mph 23.3km/h
15mph 24.1km/h
15.2mph 24.5km/h
Average humidity
86%
90%
89%
Average rainfall
0.94" 24mm
0.79" 20mm
0.87" 22mm
Average rainfall days
4.2
2.9
2.5
Average snowfall
2.95" 75mm
3.78" 96mm
4.37" 111mm
Average snowfall days
10.9
13
12.9
Average daylight
9h 0min
9h 2min
10h 3min
Average sunshine
3h 3min
3h 0min
3h 1min
Average sunshine days
17.7
15.8
14.2
Average UV index
1
1
1
Average cloud cover
65%
69%
66%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in January
Ironton, WI

Average temperature in January - Ironton, WI
  • Average high temperature in January: 22.3°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in January: 9.9°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in January
Ironton, WI

Average pressure in January - Ironton, WI
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in January
Ironton, WI

Average wind speed in January - Ironton, WI
  • Average wind speed in January: 9.3mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in January
Ironton, WI

Average humidity in January - Ironton, WI
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in January
Ironton, WI

Average rainfall in January - Ironton, WI
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days in January
Ironton, WI

Average rainfall days in January - Ironton, WI
  • Average rainfall days in January: 2.9 days

The months with the highest number of rainy days are May and June (16.1 days).
The month with the least rainy days is February (2.5 days).

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Average snowfall in January
Ironton, WI

Average snowfall in January - Ironton, WI
  • Average snowfall in January: 3.78"

The month with the highest snowfall is February (4.37").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Ironton, WI

Average snowfall days in January - Ironton, WI
  • Average snowfall days in January: 13 days

The month with the highest number of snowfall days is January (13 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
Ironton, WI

Average daylight in January / Average sunshine in January - Ironton, WI
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 3h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in January
Ironton, WI

Average sunshine days in January - Ironton, WI
  • Average sunshine days in January: 15.8 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.5 days).

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Average UV index in January
Ironton, WI

Average UV index in January - Ironton, WI
  • Average UV index in January: 1

The months with the highest UV index are June, July and August (UV index 5).
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
Ironton, WI

Average cloud cover in January - Ironton, WI
  • Average cloud cover in January: 69

The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July, August and September (Cloud cover 36).

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Average visibility in January
Ironton, WI

Average visibility in January - Ironton, WI
  • Average visibility in January: 5mi

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

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Ironton, Wisconsin, USA

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