December weather forecast
Iola, IL

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Weather in December

December, the first month of the winter in Iola, is still a cold month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 41.9°F (5.5°C).

Temperature

The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a fresh 52°F (11.1°C) in November to a cold 41.9°F (5.5°C). Iola's average low-temperature is measured at a subzero cold 30.4°F (-0.9°C) during December.

Humidity

The average relative humidity in December in Iola is 78%.

Rainfall

In Iola, in December, it is raining for 10.9 days, with typically 2.6" (66mm) of accumulated precipitation. In Iola, Illinois, during the entire year, the rain falls for 167.3 days and collects up to 37.17" (944mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Iola, in December, snow falls for 4.7 days, with typically accumulated 1.3" (33mm) of snow. In Iola, Illinois, during the entire year, snow falls for 22.8 days and aggregates up to 7.09" (180mm) of snow.

Daylight

December has the shortest days of the year in Iola, Illinois, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 6:54 am and sunset at 4:33 pm. On the last day of December, in Iola, sunrise is at 7:12 am and sunset at 4:42 pm CST.

Sunshine

In Iola, the average sunshine in December is 4.6h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

Is December cold in Iola?

The high-temperature, in December, in Iola, records 41.9°F (5.5°C), while the low-temperature is 30.4°F (-0.9°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 91.4°F (33°C).

What is the average humidity in December in Iola?

The average relative humidity in December in Iola, Illinois, is 78%.

How much does it rain in Iola in December?

In Iola, in December, during 10.9 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How much does it snow in Iola in December?

In December, it is snowing for 4.7 days. Throughout December, 1.3" (33mm) of snow is accumulated.

What is the month with the shortest days in Iola?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

What is the average length of the day in December in Iola?

In December, the average day length in Iola, Illinois, is 9h and 30min.

When are sunrise and sunset in December in Iola?

On the first day of December, sunrise is at 6:54 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:42 pm CST.

How long on average sun shines in December in Iola?

In December, the average sunshine duration in Iola, Illinois, is 4.6h.

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

The months with the lowest UV index in Iola are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Iola?

In Iola, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Iola, IL

Average temperature in December - Iola, IL
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 30.4°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Iola, IL

Average pressure in December - Iola, IL
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Iola, IL

Average wind speed in December - Iola, IL
  • Average wind speed in December: 9.4mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in December
Iola, IL

Average humidity in December - Iola, IL
  • Average humidity in December: 78%

The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Iola, IL

Average rainfall in December - Iola, IL
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is April (4.88").
The driest months (with the least rainfall) are February and September (2.09").

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Average rainfall days in December
Iola, IL

Average rainfall days in December - Iola, IL
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in December
Iola, IL

Average snowfall in December - Iola, IL
  • Average snowfall in December: 1.3"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Iola, IL

Average snowfall days in December - Iola, IL
  • Average snowfall days in December: 4.7 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Iola, IL

Average daylight in December / Average sunshine in December - Iola, IL
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in December
Iola, IL

Average sunshine days in December - Iola, IL
  • Average sunshine days in December: 16.7 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9 days).

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Average UV index in December
Iola, IL

Average UV index in December - Iola, IL
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Iola, IL

Average cloud cover in December - Iola, IL
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in December
Iola, IL

Average visibility in December - Iola, IL
  • Average visibility in December: 6mi

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

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Iola, Illinois, USA

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