December weather forecastPrismatic, MS
December
Weather in December
The first month of the winter, December, is still a mild month in Prismatic, Mississippi, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 56.7°F (13.7°C).Temperature
The arrival of December is marked by a minor reduction in average high-temperature, sliding from a refreshing 63.9°F (17.7°C) in November to a mild 56.7°F (13.7°C). In the month of December, the average temperature in Prismatic dips to a cold 41.5°F (5.3°C) during the night.Humidity
The most humid month is December, with an average relative humidity of 81%.Rainfall
December is the month with the most rainfall. Rain falls for 13.4 days and accumulates 3.98" (101mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows in Prismatic. Throughout December, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, there are 2.6 snowfall days, and 1.06" (27mm) of snow is accumulated.Daylight
December has the shortest days of the year in Prismatic, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 6:39 am and sunset at 4:49 pm. On the last day of December, sunrise is at 6:56 am and sunset at 4:59 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 4.7h of sunshine.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index in Prismatic. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 3 during December translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Prismatic, MS
- Average high temperature in December: 56.7°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (53.4°F).
- Average low temperature in December: 41.5°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).
Average pressure in December
Prismatic, 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
Prismatic, MS
- Average wind speed in December: 7.5mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Prismatic, MS
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Prismatic, MS
- Average rainfall in December: 3.98"
The wettest month (with the highest rainfall) is December (3.98").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in December
Prismatic, MS
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (9 days).
Average snowfall in December
Prismatic, MS
- Average snowfall in December: 0.35"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Prismatic, MS
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Prismatic, MS
- Average daylight in December: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Prismatic, MS
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in December
Prismatic, MS
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Prismatic, MS
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in December
Prismatic, MS
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
