December weather forecast
Arcadia, MO

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Weather in December

The first month of the winter, December, is still a chilly month in Arcadia, Missouri, with an average temperature ranging between min 30.4°F (-0.9°C) and max 43.7°F (6.5°C).

Temperature

In Arcadia, the beginning of December is marked by a lowered average high-temperature, shifting from November's cool 53.2°F (11.8°C) to a frosty 43.7°F (6.5°C). Arcadia's temperature in December lowers to a consistent average of 30.4°F (-0.9°C) during the nights.

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Arcadia, in December, during 8.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, there are 150.3 rainfall days, and 30.83" (783mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Arcadia, in December, snow falls for 4.4 days, with typically accumulated 1.54" (39mm) of snow. Throughout the year, there are 21.4 snowfall days, and 7.99" (203mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 6:59 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:54 pm CST.

Sunshine

The average sunshine in December is 4.9h.

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 reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 2 during December translates into the following guidance:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

An average high-temperature, in December, in Arcadia, is 43.7°F (6.5°C) and the average low-temperature is 30.4°F (-0.9°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 100.4°F (38°C).

What is the average humidity in December?

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

How much does it rain in December?

In December, the rain falls for 8.6 days. Throughout December, 2.13" (54mm) of precipitation is accumulated.

How many days does it snow in December?

In Arcadia, in December, during 4.4 snowfall days, 1.54" (39mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

How many hours of daylight does Arcadia have in December?

In Arcadia, the average day length in December is 9h and 37min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:59 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:54 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4.9h.

What is the month with the lowest UV index?

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

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 health vulnerability from unprotected exposure to 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
Arcadia, MO

Average temperature in December - Arcadia, MO
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in December: 30.4°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in December
Arcadia, MO

Average pressure in December - Arcadia, MO
  • 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).

Average wind speed in December
Arcadia, MO

Average wind speed in December - Arcadia, MO
  • Average wind speed in December: 7.7mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Arcadia, MO

Average humidity in December - Arcadia, MO
  • Average humidity in December: 78%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Arcadia, MO

Average rainfall in December - Arcadia, MO
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Arcadia, MO

Average rainfall days in December - Arcadia, MO
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in December
Arcadia, MO

Average snowfall in December - Arcadia, MO
  • Average snowfall in December: 1.54"

The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Arcadia, MO

Average snowfall days in December - Arcadia, MO
  • Average snowfall days in December: 4.4 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Arcadia, MO

Average daylight in December / Average sunshine in December - Arcadia, MO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Arcadia, MO

Average sunshine days in December - Arcadia, MO
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (12.1 days).

Average UV index in December
Arcadia, MO

Average UV index in December - Arcadia, MO
  • 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).

Average cloud cover in December
Arcadia, MO

Average cloud cover in December - Arcadia, MO
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in December
Arcadia, MO

Average visibility in December - Arcadia, MO
  • Average visibility in December: 6mi

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

Arcadia, Missouri, USA

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