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 month of December sees the lowest average temperatures, reaching 28.8°F (-1.8°C) at the peak and 16.2°F (-8.8°C) at the low.Humidity
The average relative humidity in December is 75%.Rainfall
The month with the least rainfall is December, when the rain falls for 3.5 days and typically collects 0.35" (9mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Dupuyer. In Dupuyer, during December, snow falls for 8.3 days and regularly aggregates up to 2.4" (61mm) of snow. Throughout the year, there are 50.3 snowfall days, and 21.26" (540mm) of snow is accumulated.Daylight
December has the shortest days of the year in Dupuyer, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 8:00 am and sunset at 4:38 pm. On the last day of December, sunrise is at 8:20 am and sunset at 4:46 pm MST.
Sunshine
The month with the least sunshine is December, with an average of 5.8h of sunshine.UV index
The months with the lowest UV index in Dupuyer are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Dupuyer?
How cold is December in Dupuyer?
What is the average humidity in December in Dupuyer?
What is the driest month in Dupuyer?
How much does it rain in Dupuyer in December?
How much does it snow in Dupuyer in December?
What is the month with the shortest days in Dupuyer?
What is the average length of the day in December in Dupuyer?
What time are sunrise and sunset in December in Dupuyer?
What is the month with the least sunshine in Dupuyer?
How long on average sun shines in December in Dupuyer?
What are the months with the lowest UV index in Dupuyer?
What is the UV index intensity in December in Dupuyer?
Average temperature in December
Dupuyer, MT
- Average high temperature in December: 28.8°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.8°F).
- Average low temperature in December: 16.2°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure in December
Dupuyer, MT
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Dupuyer, MT
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in December
Dupuyer, MT
- Average humidity in December: 75%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Dupuyer, MT
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in December
Dupuyer, MT
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in December
Dupuyer, MT
- Average snowfall in December: 2.4"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Dupuyer, MT
- Average snowfall days in December: 8.3 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Dupuyer, MT
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Dupuyer, MT
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is October (23.2 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in December
Dupuyer, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Dupuyer, MT
- Average cloud cover in December: 38
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in December
Dupuyer, 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).
Dupuyer, Montana, USA
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