December weather forecastPray, MT
December
Weather in December
December, the first month of the winter in Pray, is still a freezing cold month, with temperature in the range of an average high of 25°F (-3.9°C) and an average low of 11.1°F (-11.6°C).Temperature
In Pray, Montana, the month of December registers the lowest temperatures, averaging 25°F (-3.9°C) at the peak and 11.1°F (-11.6°C) at the lowest.Humidity
The average relative humidity in December is 86%.Rainfall
January and December are months with the least rain when the rain falls for 6.9 days and typically aggregates up to 0.71" (18mm) of rain.Snowfall
Months with snowfall are January through June, September through December. In Pray, during December, snow falls for 13.3 days and regularly aggregates up to 5.47" (139mm) of snow. In Pray, during the entire year, snow falls for 89.9 days and aggregates up to 47.2" (1199mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:42 am and sunset at 4:41 pm. On the last day of December, in Pray, sunrise is at 8:02 am and sunset at 4:49 pm MST.
Sunshine
In December, the average sunshine is 5.5h.UV index
In Pray, 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 for the average person.Note: In December, the UV index of 2 transforms into the following advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Pray, MT
- Average high temperature in December: 25°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (25°F).
- Average low temperature in December: 11.1°F
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (11.1°F).
Average pressure in December
Pray, MT
- Average pressure in December: 30.18"Hg
The months with the highest atmospheric pressure are January and December (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Pray, MT
- Average wind speed in December: 8.4mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Pray, MT
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is August (50%).
Average rainfall in December
Pray, MT
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (2.24").
The driest months (with the least rainfall) are January and December (0.71").
Average rainfall days in December
Pray, MT
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Pray, MT
- Average snowfall in December: 5.47"
The month with the highest snowfall is April (8.11").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Pray, MT
- Average snowfall days in December: 13.3 days
The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Pray, 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 30min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in December
Pray, MT
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is May (6.4 days).
Average UV index in December
Pray, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Pray, MT
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in December
Pray, MT
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).





