December weather forecast
Ironwood, MI

Weather in December

The first month of the winter, December, is still a freezing cold month in Ironwood, Michigan, with temperature in the range of an average high of 24.4°F (-4.2°C) and an average low of 16.7°F (-8.5°C).

Temperature

In Ironwood, the average high-temperature in December drops from a wintry 36.5°F (2.5°C) in November to a subzero cold 24.4°F (-4.2°C). In December, in Ironwood, the average low-temperature is 16.7°F (-8.5°C).

Humidity

In December, the average relative humidity in Ironwood is 89%.

Rainfall

In December, the rain falls for 3.8 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. In Ironwood, Michigan, during the entire year, the rain falls for 104.6 days and collects up to 16.5" (419mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Ironwood. The month with the most snowfall is December, when snow falls for 22 days and typically aggregates up to 8.35" (212mm) of snow.

Daylight

With an average of 8h and 40min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:15 pm. On the last day of December, sunrise is at 7:44 am and sunset at 4:23 pm CST.

Sunshine

The average sunshine in December in Ironwood, Michigan, is 2.2h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 in December transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Ironwood?

The average high-temperature, in December, in Ironwood, Michigan, is 24.4°F (-4.2°C), while the average low-temperature is 16.7°F (-8.5°C).

What is the average humidity in December in Ironwood?

In Ironwood, the average relative humidity in December is 89%.

How much does it rain in Ironwood in December?

In December, in Ironwood, Michigan, the rain falls for 3.8 days. Throughout December, 1.26" (32mm) of precipitation is accumulated.

When does it snow the most in Ironwood?

December is the month with the most snowfall in Ironwood, Michigan. Snow falls for 22 days and accumulates 8.35" (212mm) of snow.

How many days does it snow in December in Ironwood?

In December, in Ironwood, Michigan, it is snowing for 22 days. Throughout December, 8.35" (212mm) of snow is accumulated.

What is the month with the shortest days in Ironwood?

The month with the shortest days is December, with an average of 8h and 40min of daylight.

How many hours of daylight does Ironwood have in December?

The average day length in December is 8h and 40min.

When is the sunrise / sunset in December in Ironwood?

On the first day of December, sunrise is at 7:23 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:23 pm CST.

How long on average sun shines in December in Ironwood?

The average sunshine duration in December in Ironwood is 2.2h.

When is the lowest UV index in Ironwood?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Ironwood, Michigan.

What is the UV index reading in December in Ironwood?

The average daily maximum UV index in December in Ironwood, Michigan, is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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 December
Ironwood, MI

Average temperature in December - Ironwood, MI
  • Average high temperature in December: 24.4°F

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (19.2°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).

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Average pressure in December
Ironwood, MI

Average pressure in December - Ironwood, MI
  • Average pressure in December: 30.07"Hg

The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Ironwood, MI

Average wind speed in December - Ironwood, MI
  • Average wind speed in December: 9.4mph

The windiest months (with the highest average wind speed) are January and November (9.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7mph).

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Average humidity in December
Ironwood, MI

Average humidity in December - Ironwood, MI
  • Average humidity in December: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (72%).

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Average rainfall in December
Ironwood, MI

Average rainfall in December - Ironwood, MI
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in December
Ironwood, MI

Average rainfall days in December - Ironwood, MI
  • Average rainfall days in December: 3.8 days

The month with the highest number of rainy days is June (13.1 days).
The month with the least rainy days is January (1.8 days).

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Average snowfall in December
Ironwood, MI

Average snowfall in December - Ironwood, MI
  • Average snowfall in December: 8.35"

The month with the highest snowfall is December (8.35").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Ironwood, MI

Average snowfall days in December - Ironwood, MI
  • Average snowfall days in December: 22 days

The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Ironwood, MI

Average daylight in December / Average sunshine in December - Ironwood, MI
  • Average daylight in December: 8h and 40min

The month with the longest days is June (Average daylight: 15h and 45min).
The month with the shortest days is December (Average daylight: 8h and 40min).

  • Average sunshine in December: 2h and 12min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).

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Average sunshine days in December
Ironwood, MI

Average sunshine days in December - Ironwood, MI
  • Average sunshine days in December: 8.3 days

The month with the most sunshine days is July (16.3 days).
The month with the least sunshine days is January (7.8 days).

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Average UV index in December
Ironwood, MI

Average UV index in December - Ironwood, MI
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in December
Ironwood, MI

Average cloud cover in December - Ironwood, MI
  • Average cloud cover in December: 78

The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Ironwood, MI

Average visibility in December - Ironwood, MI
  • Average visibility in December: 5mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).

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