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
Temperature readings reach their annual highs in December, averaging 25.2°F (-3.8°C) and a minimum average of 9.5°F (-12.5°C).Humidity
In Border Junction, the average relative humidity in December is 89%.Rainfall
In December, in Border Junction, the rain falls for 8.5 days. Throughout December, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 117.5 rainfall days, and 20.24" (514mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Border Junction. In Border Junction, during December, snow falls for 21.6 days and regularly aggregates up to 14.49" (368mm) of snow. In Border Junction, during the entire year, snow falls for 116.1 days and aggregates up to 91.14" (2315mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:34 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:02 pm MST.
Sunshine
The average sunshine in December is 4.7h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 1 during December leads to these instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What are the coldest months in Border Junction?
How cold is December in Border Junction?
What is the average humidity in December in Border Junction?
How many days does it rain in December in Border Junction?
How many days does it snow in December in Border Junction?
What is the month with the shortest days in Border Junction?
How many hours of daylight does Border Junction have in December?
What time are sunrise and sunset in December in Border Junction?
How long on average sun shines in December in Border Junction?
What are the months with the lowest UV index in Border Junction?
What is the UV index intensity in December in Border Junction?
Average temperature in December
Border Junction, WY
- Average high temperature in December: 25.2°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in December: 9.5°F
The month with the highest average low temperature is July (48.9°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in December
Border Junction, WY
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Border Junction, WY
- Average wind speed in December: 4.2mph
The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).
Average humidity in December
Border Junction, WY
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Border Junction, WY
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in December
Border Junction, WY
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Border Junction, WY
- Average snowfall in December: 14.49"
The month with the highest snowfall is February (18.39").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Border Junction, WY
- Average snowfall days in December: 21.6 days
The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Border Junction, WY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Border Junction, WY
- Average sunshine days in December: 9.4 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in December
Border Junction, WY
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Border Junction, WY
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in December
Border Junction, WY
- Average visibility in December: 4mi
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 (3mi).
Border Junction, Wyoming, USA
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