December weather forecastPryor, MT
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Pryor, Montana, with temperature in the range of an average high of 31.3°F (-0.4°C) and an average low of 18.5°F (-7.5°C).Temperature
The month of December, characterized by an average high of 31.3°F (-0.4°C) and a low of 18.5°F (-7.5°C), is recognized as the coldest.Humidity
In Pryor, the average relative humidity in December is 74%.Rainfall
In December, the rain falls for 3.2 days. Throughout December, 0.31" (8mm) of precipitation is accumulated. Throughout the year, in Pryor, there are 95.8 rainfall days, and 8.74" (222mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In December, it is snowing for 8.5 days. Throughout December, 2.36" (60mm) of snow is accumulated. Throughout the year, there are 44.1 snowfall days, and 15.75" (400mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:34 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:53 am and sunset at 4:41 pm MST.
Sunshine
In Pryor, the average sunshine in December is 5.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Pryor, MT
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is February (18.3°F).
Average pressure in December
Pryor, MT
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Pryor, MT
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Pryor, MT
- Average humidity in December: 74%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (40%).
Average rainfall in December
Pryor, MT
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in December
Pryor, MT
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in December
Pryor, MT
- Average snowfall in December: 2.36"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Pryor, MT
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Pryor, MT
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 5h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in December
Pryor, MT
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in December
Pryor, MT
- 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, March, November and December (UV index 2).
Average cloud cover in December
Pryor, MT
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
Pryor, 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).
