December weather forecastJoplin, MT
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Joplin, Montana, with an average temperature varying between 16.7°F (-8.5°C) and 28.2°F (-2.1°C).Temperature
Joplin experiences its lowest average temperatures in December, reaching a peak of 28.2°F (-2.1°C) and a minimum of 16.7°F (-8.5°C).Humidity
In Joplin, Montana, the average relative humidity in December is 78%.Rainfall
The month with the least rainfall is December, when the rain falls for 6.9 days and typically collects 0.59" (15mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Joplin, Montana, in December, during 12 snowfall days, 3.7" (94mm) of snow is typically accumulated. Throughout the year, there are 65.1 snowfall days, and 24.69" (627mm) of snow is accumulated.Daylight
December has the shortest days of the year in Joplin, with an average of 8h and 24min of daylight.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.
Sunshine
January and December, with an average of 5.3h of sunshine, are months with the least 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 value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in December /
Average sunshine in December
Joplin, MT
- Average daylight in December: 8h and 24min
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 18min
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).
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).
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).
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).
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).
