December weather forecast
Ohlman, IL

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Weather in December

The first month of the winter, December, is also an icy month in Ohlman, Illinois, with an average temperature fluctuating between 39.6°F (4.2°C) and 28.4°F (-2°C).

Temperature

In Ohlman, the average high-temperature in December drops from a fresh 50.7°F (10.4°C) in November to an icy 39.6°F (4.2°C). Ohlman's average low-temperature in the month of December is recorded at a freezing cold 28.4°F (-2°C).

Humidity

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

Rainfall

The months with the least rainfall in Ohlman are February and December Rain falls for 7.5 days and accumulates 0.98" (25mm) of rain.

Snowfall

January through April, November and December are months with snowfall in Ohlman. In Ohlman, in December, during 4.3 snowfall days, 1.22" (31mm) of snow is typically accumulated. In Ohlman, during the entire year, snow falls for 21.4 days and aggregates up to 5.2" (132mm) of snow.

Daylight

The month with the shortest days in Ohlman is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:34 pm. On the last day of December, in Ohlman, sunrise is at 7:16 am and sunset at 4:43 pm CST.

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Ohlman in December?

An average high-temperature, in December, in Ohlman, is 39.6°F (4.2°C) and the average low-temperature is 28.4°F (-2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in December in Ohlman?

In Ohlman, Illinois, the average relative humidity in December is 78%.

What is the driest month in Ohlman?

February and December are months with the least rain in Ohlman when the rain falls for 7.5 days and typically aggregates up to 0.98" (25mm) of rain.

How much does it rain in Ohlman in December?

In Ohlman, Illinois, during December, the rain falls for 7.5 days and regularly aggregates up to 0.98" (25mm) of precipitation.

How much does it snow in Ohlman in December?

In Ohlman, Illinois, in December, during 4.3 snowfall days, 1.22" (31mm) of snow is typically accumulated.

What is the month with the shortest days in Ohlman?

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

How many hours of daylight does Ohlman have in December?

In December, the average day length is 9h and 27min.

When is the sunrise / sunset in December in Ohlman?

On the first day of December in Ohlman, Illinois, sunrise is at 6:58 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:43 pm CST.

How long on average sun shines in December in Ohlman?

In December, the average sunshine duration is 4.6h.

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

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

What is the UV index reading in December in Ohlman?

The average daily maximum UV index in December in Ohlman, Illinois, is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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
Ohlman, IL

Average temperature in December - Ohlman, IL
  • Average high temperature in December: 39.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

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Average pressure in December
Ohlman, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Ohlman, IL

Average wind speed in December - Ohlman, IL
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

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Average humidity in December
Ohlman, IL

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Ohlman, IL

Average rainfall in December - Ohlman, IL
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are February and December (0.98").

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Average rainfall days in December
Ohlman, IL

Average rainfall days in December - Ohlman, IL
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in December
Ohlman, IL

Average snowfall in December - Ohlman, IL
  • Average snowfall in December: 1.22"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Ohlman, IL

Average snowfall days in December - Ohlman, IL
  • Average snowfall days in December: 4.3 days

The months with the highest number of snowfall days are January and February (6.3 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
Ohlman, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in December
Ohlman, IL

Average sunshine days in December - Ohlman, IL
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in December
Ohlman, IL

Average UV index in December - Ohlman, IL
  • Average UV index in December: 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, November and December (UV index 2).

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Average cloud cover in December
Ohlman, IL

Average cloud cover in December - Ohlman, IL
  • Average cloud cover in December: 52

The months with the most cloud cover are January and February (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in December
Ohlman, IL

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

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

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Ohlman, Illinois, USA

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