December weather forecast
Chariton, IA

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Weather in December

December, the first month of the winter in Chariton, is also an icy month, with an average temperature fluctuating between 23.2°F (-4.9°C) and 34.9°F (1.6°C).

Temperature

December ushers in a slight temperature change, with average high-temperatures reducing from November's chilly 48°F (8.9°C) to a cold 34.9°F (1.6°C). Chariton observes an average nighttime low-temperature of 23.2°F (-4.9°C) during the month of December.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Chariton, in December, it is raining for 6.1 days, with typically 1.06" (27mm) of accumulated precipitation. In Chariton, during the entire year, the rain falls for 131.1 days and collects up to 25.71" (653mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 6.4 days. Throughout December, 1.54" (39mm) of snow is accumulated. In Chariton, during the entire year, snow falls for 33.4 days and aggregates up to 13.54" (344mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:19 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:55 pm CST.

Sunshine

The average sunshine in December is 4.6h.

UV index

In Chariton, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature during December are 34.9°F (1.6°C) and 23.2°F (-4.9°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

What is the average humidity in December?

In Chariton, the average relative humidity in December is 79%.

How many days does it rain in December?

In December, the rain falls for 6.1 days. Throughout December, 1.06" (27mm) of precipitation is accumulated.

How much does it snow in December?

In December, it is snowing for 6.4 days. Throughout December, 1.54" (39mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 9h and 17min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:55 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.6h.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Chariton, IA

Average temperature in December - Chariton, IA
  • Average high temperature in December: 34.9°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 (29.3°F).

  • Average low temperature in December: 23.2°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in December
Chariton, IA

Average pressure in December - Chariton, IA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Chariton, IA

Average wind speed in December - Chariton, IA
  • Average wind speed in December: 10.3mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in December
Chariton, IA

Average humidity in December - Chariton, IA
  • Average humidity in December: 79%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Chariton, IA

Average rainfall in December - Chariton, IA
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in December
Chariton, IA

Average rainfall days in December - Chariton, IA
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.7 days).

Average snowfall in December
Chariton, IA

Average snowfall in December - Chariton, IA
  • Average snowfall in December: 1.54"

The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Chariton, IA

Average snowfall days in December - Chariton, IA
  • Average snowfall days in December: 6.4 days

The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Chariton, IA

Average daylight in December / Average sunshine in December - Chariton, IA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in December
Chariton, IA

Average sunshine days in December - Chariton, IA
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in December
Chariton, IA

Average UV index in December - Chariton, IA
  • Average UV index in December: 2

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

Average cloud cover in December
Chariton, IA

Average cloud cover in December - Chariton, IA
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in December
Chariton, IA

Average visibility in December - Chariton, IA
  • Average visibility in December: 6mi

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

Chariton, Iowa, USA

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