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 transition into December involves a decrease in the average high-temperature, falling from a wintry 38.8°F (3.8°C) in November to a freezing cold 24.8°F (-4°C). Throughout December, the average low-temperature in Whitewater, Montana, dips to a frigid cold 12.7°F (-10.7°C).Humidity
In December, the average relative humidity in Whitewater is 83%.Rainfall
In Whitewater, in December, it is raining for 4.2 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, in Whitewater, there are 91.8 rainfall days, and 10.63" (270mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall in Whitewater. Snow falls for 11.8 days and accumulates 3.43" (87mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 7:43 am and sunset at 4:16 pm. On the last day of December, sunrise is at 8:03 am and sunset at 4:24 pm MST.
Sunshine
In Whitewater, Montana, the average sunshine in December is 4.8h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Whitewater. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
How cold is it in Whitewater in December?
What is the average humidity in December in Whitewater?
How many days does it rain in December in Whitewater?
What is the snowiest month in Whitewater?
How much does it snow in Whitewater in December?
What is the month with the shortest days in Whitewater?
How many hours of daylight does Whitewater have in December?
When are sunrise and sunset in December in Whitewater?
How many hours of sunshine does Whitewater have in December?
What is the month with the lowest UV index in Whitewater?
What is the UV index reading in December in Whitewater?
Average temperature in December
Whitewater, MT
- Average high temperature in December: 24.8°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is February (24.4°F).
- Average low temperature in December: 12.7°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (10°F).
Average pressure in December
Whitewater, MT
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Whitewater, MT
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is February (8.3mph).
Average humidity in December
Whitewater, MT
- Average humidity in December: 83%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Whitewater, MT
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in December
Whitewater, MT
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Whitewater, MT
- Average snowfall in December: 3.43"
The month with the highest snowfall is December (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Whitewater, MT
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Whitewater, 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 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Whitewater, MT
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is April (15.4 days).
Average UV index in December
Whitewater, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Whitewater, MT
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in December
Whitewater, MT
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Whitewater, Montana, USA
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