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 arrival of December suggests a slight decrease in the average high-temperature, moving from a mild 59.5°F (15.3°C) in November to a fresh 51.1°F (10.6°C). Blue Mountain's average low-temperature in the month of December is recorded at a cold 37.8°F (3.2°C).Humidity
March and December, with an average relative humidity of 80%, are the most humid months.Rainfall
In Blue Mountain, in December, during 13 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 167.2 rainfall days, and 38.98" (990mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Blue Mountain, during December, snow falls for 0.4 days and regularly aggregates up to 0.08" (2mm) of snow. In Blue Mountain, during the entire year, snow falls for 4.8 days and aggregates up to 1.54" (39mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 6:45 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 4:55 pm CST.
Sunshine
The average sunshine in December is 4.8h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Blue Mountain in December?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December in Blue Mountain?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Blue Mountain have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Blue Mountain have in December?
When is the lowest UV index in Blue Mountain?
What is the UV index intensity in December?
Average temperature in December
Blue Mountain, MS
- Average high temperature in December: 51.1°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in December
Blue Mountain, MS
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Blue Mountain, MS
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in December
Blue Mountain, MS
- Average humidity in December: 80%
The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Blue Mountain, MS
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is February (4.8").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Blue Mountain, MS
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in December
Blue Mountain, MS
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Blue Mountain, MS
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blue Mountain, MS
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Blue Mountain, MS
- Average sunshine days in December: 17 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in December
Blue Mountain, MS
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Blue Mountain, MS
- 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 June, August and September (Cloud cover 29).
Average visibility in December
Blue Mountain, MS
- 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).
Blue Mountain, Mississippi, USA
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