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
Richey in December undergoes a mild reduction in the average high-temperature, shifting from November's wintry 40.5°F (4.7°C) to a freezing cold 26.2°F (-3.2°C). Richey sees an average low-temperature of 14.2°F (-9.9°C) during December.Humidity
The average relative humidity in December in Richey is 82%.Rainfall
In Richey, in December, during 4.1 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, there are 102.6 rainfall days, and 13.35" (339mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Richey. In Richey, in December, snow falls for 11.5 days, with typically accumulated 2.95" (75mm) of snow. Throughout the year, there are 58.7 snowfall days, and 17.28" (439mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:10 pm. On the last day of December, in Richey, sunrise is at 7:48 am and sunset at 4:18 pm MST.
Sunshine
February and December, with an average of 4.9h of sunshine, are months with the least sunshine.UV index
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 hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
How cold is December in Richey?
What is the average humidity in December in Richey?
How much does it rain in Richey in December?
How much does it snow in Richey in December?
What is the month with the shortest days in Richey?
How many hours of daylight does Richey have in December?
When is the sunrise / sunset in December in Richey?
What are the months with the least sunshine in Richey?
How many hours of sunshine does Richey have in December?
When is the lowest UV index in Richey?
What is the UV index intensity in December in Richey?
Average temperature in December
Richey, MT
- Average high temperature in December: 26.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 14.2°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Richey, MT
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Richey, MT
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).
Average humidity in December
Richey, MT
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Richey, MT
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Richey, MT
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Richey, MT
- Average snowfall in December: 2.95"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Richey, MT
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Richey, MT
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Richey, MT
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in December
Richey, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Richey, MT
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in December
Richey, 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).
Richey, Montana, USA
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