December weather forecast
Joplin, MT

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Weather in December

December, the first month of the winter in Joplin, is still a freezing cold month, with an average temperature varying between 16.7°F (-8.5°C) and 28.2°F (-2.1°C).

Temperature

December brings the lowest temperatures, with an average high of 28.2°F (-2.1°C) and an average low of 16.7°F (-8.5°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

December is the month with the least rainfall. Rain falls for 6.9 days and accumulates 0.59" (15mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Joplin, Montana, during December, snow falls for 12 days and regularly aggregates up to 3.7" (94mm) of snow. In Joplin, during the entire year, snow falls for 65.1 days and aggregates up to 24.69" (627mm) of snow.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year.
On the first day of December in Joplin, Montana, sunrise is at 7:54 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 8:15 am and sunset at 4:37 pm MST.

Sunshine

The months with the least sunshine in Joplin are January and December, with an average of 5.3h of sunshine.

UV index

January through March, October through 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 vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

What is the coldest month in Joplin?

In Joplin, Montana, the lowest temperatures are generally noted in December, averaging a high of 28.2°F (-2.1°C) and a low of 16.7°F (-8.5°C).

How cold is it in Joplin in December?

The high-temperature, in December, in Joplin, records 28.2°F (-2.1°C), while the low-temperature is 16.7°F (-8.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is computed to be 82.4°F (28°C).

What is the average humidity in December in Joplin?

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

What is the driest month in Joplin?

December is the month with the least rainfall in Joplin, Montana. Rain falls for 6.9 days and accumulates 0.59" (15mm) of precipitation.

How many days does it rain in December in Joplin?

In December, in Joplin, the rain falls for 6.9 days. Throughout December, 0.59" (15mm) of precipitation is accumulated.

How much does it snow in Joplin in December?

In December, in Joplin, it is snowing for 12 days. Throughout December, 3.7" (94mm) of snow is accumulated.

What is the month with the shortest days in Joplin?

December has the shortest days of the year in Joplin, Montana, with an average of 8h and 24min of daylight.

How many hours of daylight does Joplin have in December?

In Joplin, the average day length in December is 8h and 22min.

When is the sunrise / sunset in December in Joplin?

On the first day of December, sunrise is at 7:54 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 8:15 am and sunset at 4:37 pm MST.

What are the months with the least sunshine in Joplin?

The months with the least sunshine in Joplin, Montana, are January and December, with an average of 5.3h of sunshine.

How many hours of sunshine does Joplin have in December?

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

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

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Joplin, Montana.

What is the UV index intensity in December in Joplin?

In Joplin, Montana, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from 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
Joplin, MT

Average temperature in December - Joplin, MT
  • Average high temperature in December: 28.2°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (28.2°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).

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Average pressure in December
Joplin, MT

Average pressure in December - Joplin, MT
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in December
Joplin, MT

Average wind speed in December - Joplin, MT
  • Average wind speed in December: 10.2mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

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Average humidity in December
Joplin, MT

Average humidity in December - Joplin, MT
  • Average humidity in December: 78%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in December
Joplin, MT

Average rainfall in December - Joplin, MT
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is December (0.59").

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Average rainfall days in December
Joplin, MT

Average rainfall days in December - Joplin, MT
  • Average rainfall days in December: 6.9 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5 days).

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Average snowfall in December
Joplin, MT

Average snowfall in December - Joplin, MT
  • Average snowfall in December: 3.7"

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

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Average snowfall days in December
Joplin, MT

Average snowfall days in December - Joplin, MT
  • Average snowfall days in December: 12 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Joplin, MT

Average daylight in December / Average sunshine in December - Joplin, MT
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).

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Average sunshine days in December
Joplin, MT

Average sunshine days in December - Joplin, MT
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (11.7 days).

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Average UV index in December
Joplin, MT

Average UV index in December - Joplin, MT
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in December
Joplin, MT

Average cloud cover in December - Joplin, MT
  • Average cloud cover in December: 44

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in December
Joplin, MT

Average visibility in December - Joplin, MT
  • 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).

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Joplin, Montana, USA

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