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
December witnesses a gentle descent in average high-temperature, descending from November's 65.3°F (18.5°C) to a still refreshing 57.9°F (14.4°C). An average low-temperature of 42.6°F (5.9°C) is anticipated throughout the nights in Roy during December.Humidity
The most humid month in Roy, Mississippi, is December, with an average relative humidity of 81%.Rainfall
The month with the most rainfall is December, when the rain falls for 13.1 days and typically aggregates up to 3.86" (98mm) of precipitation.Snowfall
Months with snowfall in Roy are January through March and December. December is the month with the most snowfall in Roy. Snow falls for 0.8 days and accumulates 0.43" (11mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 6:38 am and sunset at 4:49 pm. On the last day of December, sunrise is at 6:55 am and sunset at 5:00 pm CST.
Sunshine
With an average of 4.8h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index in Roy is December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What is the average December temperature in Roy?
What is the most humid month in Roy?
What is the average humidity in December in Roy?
What is the wettest month in Roy?
How many days does it rain in December in Roy?
What is the snowiest month in Roy?
When does it start to snow in Roy?
What is the month with the shortest days in Roy?
What is the average length of the day in December in Roy?
When is the sunrise / sunset in December in Roy?
What is the month with the least sunshine in Roy?
How many hours of sunshine does Roy have in December?
When is the lowest UV index in Roy?
What is the UV index reading in December in Roy?
Average temperature in December
Roy, MS
- Average high temperature in December: 57.9°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in December: 42.6°F
The months with the highest average low temperature are July and August (71.8°F).
The coldest month (with the lowest average low temperature) is January (38.3°F).
Average pressure in December
Roy, 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
Roy, MS
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in December
Roy, 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 (71%).
Average rainfall in December
Roy, MS
- Average rainfall in December: 3.86"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in December
Roy, MS
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (8 days).
Average snowfall in December
Roy, MS
- Average snowfall in December: 0.43"
The month with the highest snowfall is December (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Roy, MS
- Average snowfall days in December: 0.8 days
The months with the highest number of snowfall days are January and December (0.8 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
Roy, MS
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- 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 December (Average sunshine: 4h and 48min).
Average sunshine days in December
Roy, MS
- Average sunshine days in December: 16 days
The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in December
Roy, MS
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Roy, MS
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in December
Roy, MS
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, June, October and November (6mi).
The months with the lowest visibility are January, May, July, August, September and December (5mi).
Roy, Mississippi, USA
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