Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The commencement of December indicates a shift in the average high-temperature, receding from November's wintry 36.3°F (2.4°C) to a subzero cold 22.3°F (-5.4°C). Riverton, during December, witnesses an average low-temperature of 11.1°F (-11.6°C).Humidity
In December, the average relative humidity in Riverton is 88%.Rainfall
In Riverton, Minnesota, in December, during 2.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Riverton, during the entire year, the rain falls for 108 days and collects up to 19.88" (505mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Riverton. December is the month with the most snowfall in Riverton. Snow falls for 18.7 days and accumulates 8.58" (218mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Riverton.On the first day of the month, sunrise is at 7:40 am and sunset at 4:30 pm. On the last day of December, in Riverton, sunrise is at 7:59 am and sunset at 4:39 pm CST.
Sunshine
In Riverton, the average sunshine in December is 2.7h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 during December translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
How cold is it in Riverton in December?
What is the average humidity in December in Riverton?
How many days does it rain in December in Riverton?
When does it snow the most in Riverton?
How many days does it snow in December in Riverton?
What is the month with the shortest days in Riverton?
How many hours of daylight does Riverton have in December?
When is the sunrise / sunset in December in Riverton?
How long on average sun shines in December in Riverton?
What are the months with the lowest UV index in Riverton?
What is the UV index reading in December in Riverton?
Average temperature in December
Riverton, MN
- Average high temperature in December: 22.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (17.6°F).
- Average low temperature in December: 11.1°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (3.6°F).
Average pressure in December
Riverton, MN
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Riverton, MN
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Riverton, MN
- Average humidity in December: 88%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Riverton, MN
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Riverton, MN
- Average rainfall days in December: 2.8 days
The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.2 days).
Average snowfall in December
Riverton, MN
- Average snowfall in December: 8.58"
The month with the highest snowfall is December (8.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Riverton, MN
- Average snowfall days in December: 18.7 days
The month with the highest number of snowfall days is January (20.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Riverton, MN
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Riverton, MN
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is September (17.6 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in December
Riverton, MN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Riverton, MN
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Riverton, MN
- Average visibility in December: 4mi
The months with the highest visibility are May, June and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Riverton, Minnesota, USA
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