December weather forecast
Exeter, MO

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Weather in December

December, the first month of the winter in Exeter, is still a chilly month, with an average temperature varying between 31.5°F (-0.3°C) and 46.2°F (7.9°C).

Temperature

The arrival of December corresponds with a reduction in the average high-temperature, down from November's refreshing 56.1°F (13.4°C) to a frosty 46.2°F (7.9°C). Exeter, during December nights, observes an average temperature of 31.5°F (-0.3°C).

Humidity

In Exeter, the average relative humidity in December is 75%.

Rainfall

In Exeter, Missouri, in December, it is raining for 7.2 days, with typically 1.97" (50mm) of accumulated precipitation. In Exeter, during the entire year, the rain falls for 149.2 days and collects up to 33.43" (849mm) of precipitation.

Snowfall

Months with snowfall in Exeter are January through May, November and December. In December, it is snowing for 3.1 days. Throughout December, 1.18" (30mm) of snow is accumulated. In Exeter, Missouri, during the entire year, snow falls for 15.1 days and aggregates up to 7.8" (198mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of December in Exeter, sunrise is at 7:10 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:10 pm CST.

Sunshine

In December, the average sunshine is 5.6h.

UV index

The months with the lowest UV index in Exeter are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December in Exeter?

The high-temperature, in December, in Exeter, records 46.2°F (7.9°C), while the low-temperature is 31.5°F (-0.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in September is evaluated at 84.2°F (29°C).

What is the average humidity in December in Exeter?

In Exeter, the average relative humidity in December is 75%.

How many days does it rain in December in Exeter?

In Exeter, in December, during 7.2 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

How many days does it snow in December in Exeter?

In Exeter, during December, snow falls for 3.1 days and regularly aggregates up to 1.18" (30mm) of snow.

What is the month with the shortest days in Exeter?

With an average of 9h and 42min of daylight, December has the shortest days of the year.

How many hours of daylight does Exeter have in December?

In Exeter, Missouri, the average day length in December is 9h and 42min.

When is the sunrise / sunset in December in Exeter?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:59 pm. On the last day of the month, in Exeter, sunrise is at 7:27 am and sunset at 5:10 pm CST.

How long on average sun shines in December in Exeter?

In December, the average sunshine duration is 5.6h.

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

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

How high is the UV index in December in Exeter?

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

Average temperature in December - Exeter, MO
  • Average high temperature in December: 46.2°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in December: 31.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in December
Exeter, MO

Average pressure in December - Exeter, MO
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Exeter, MO

Average wind speed in December - Exeter, MO
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in December
Exeter, MO

Average humidity in December - Exeter, MO
  • Average humidity in December: 75%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are July, August and October (72%).

Average rainfall in December
Exeter, MO

Average rainfall in December - Exeter, MO
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is May (4.69").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in December
Exeter, MO

Average rainfall days in December - Exeter, MO
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (7.2 days).

Average snowfall in December
Exeter, MO

Average snowfall in December - Exeter, MO
  • Average snowfall in December: 1.18"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Exeter, MO

Average snowfall days in December - Exeter, MO
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in December
Exeter, MO

Average sunshine days in December - Exeter, MO
  • Average sunshine days in December: 21.3 days

The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in December
Exeter, MO

Average UV index in December - Exeter, 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 and December (UV index 2).

Average cloud cover in December
Exeter, MO

Average cloud cover in December - Exeter, MO
  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June, July and August (Cloud cover 26).

Average visibility in December
Exeter, MO

Average visibility in December - Exeter, 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).

Exeter, Missouri, USA

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