December weather forecast
Dover, MO

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Weather in December

The first month of the winter, December, is also an icy month in Dover, Missouri, with temperature in the range of an average high of 40.6°F (4.8°C) and an average low of 27.5°F (-2.5°C).

Temperature

Stepping into December, Dover observes a temperature decline, with the average high falling from November's fresh 52.3°F (11.3°C) to a wintry 40.6°F (4.8°C). Dover throughout December, experiences an average nighttime temperature of 27.5°F (-2.5°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Dover, in December, during 5.2 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. In Dover, Missouri, during the entire year, the rain falls for 121.1 days and collects up to 17.32" (440mm) of precipitation.

Snowfall

Months with snowfall in Dover are January through April, October through December. In December, it is snowing for 2.5 days. Throughout December, 0.71" (18mm) of snow is accumulated. Throughout the year, there are 17 snowfall days, and 5.31" (135mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:15 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:34 am and sunset at 5:02 pm CST.

Sunshine

The average sunshine in December is 5.3h.

UV index

The months with the lowest UV index in Dover are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Dover?

In December, in Dover, the average high-temperature is 40.6°F (4.8°C), and the average low-temperature is 27.5°F (-2.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 93.2°F (34°C).

What is the average humidity in December in Dover?

In December, the average relative humidity in Dover, Missouri, is 76%.

How many days does it rain in December in Dover?

In Dover, in December, during 5.2 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

How much does it snow in Dover in December?

In Dover, in December, during 2.5 snowfall days, 0.71" (18mm) of snow is typically accumulated.

What is the month with the shortest days in Dover?

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

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

In Dover, the average day length in December is 9h and 28min.

When are sunrise and sunset in December in Dover?

On the first day of December in Dover, sunrise is at 7:15 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:02 pm CST.

How long on average sun shines in December in Dover?

In December, the average sunshine duration in Dover is 5.3h.

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

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

What is the UV index intensity in December in Dover?

In Dover, Missouri, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk 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
Dover, MO

Average temperature in December - Dover, MO
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in December
Dover, MO

Average pressure in December - Dover, MO
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Dover, MO

Average wind speed in December - Dover, MO
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is March (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in December
Dover, MO

Average humidity in December - Dover, MO
  • Average humidity in December: 76%

The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Dover, MO

Average rainfall in December - Dover, MO
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in December
Dover, MO

Average rainfall days in December - Dover, MO
  • Average rainfall days in December: 5.2 days

The month with the highest number of rainy days is May (14.8 days).
The months with the least rainy days are January and December (5.2 days).

Average snowfall in December
Dover, MO

Average snowfall in December - Dover, MO
  • Average snowfall in December: 0.71"

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

Average snowfall days in December
Dover, MO

Average snowfall days in December - Dover, MO
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Dover, MO
  • 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: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in December
Dover, MO

Average sunshine days in December - Dover, MO
  • Average sunshine days in December: 23.2 days

The month with the most sunshine days is December (23.2 days).
The months with the least sunshine days are June and July (13.7 days).

Average UV index in December
Dover, MO

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

Average cloud cover in December
Dover, MO

Average cloud cover in December - Dover, MO
  • Average cloud cover in December: 42

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 27).

Average visibility in December
Dover, MO

Average visibility in December - Dover, MO
  • 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).

Dover, Missouri, USA

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