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 advent of December brings a subtle shift in temperature, with the average high moving from an enjoyable 66.7°F (19.3°C) in November to a mild 59.7°F (15.4°C). Runnelstown experiences an average low-temperature of 43.7°F (6.5°C) in month of December.Humidity
December is the most humid month, with an average relative humidity of 81%.Rainfall
In Runnelstown, in December, it is raining for 13.8 days, with typically 3.74" (95mm) of accumulated precipitation. In Runnelstown, during the entire year, the rain falls for 177.1 days and collects up to 36.42" (925mm) of precipitation.Snowfall
Months with snowfall are January through March and December. The month with the most snowfall in Runnelstown is December, when snow falls for 0.4 days and typically aggregates up to 0.39" (10mm) of snow.Daylight
December has the shortest days of the year, 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 4:53 pm. On the last day of December, sunrise is at 6:55 am and sunset at 5:04 pm CST.
Sunshine
With an average of 4.9h of sunshine, December has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 3 suggests these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Runnelstown have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Runnelstown have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Runnelstown, MS
- Average high temperature in December: 59.7°F
The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in December: 43.7°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in December
Runnelstown, MS
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Runnelstown, MS
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).
Average humidity in December
Runnelstown, 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
Runnelstown, MS
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is July (4.37").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in December
Runnelstown, MS
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
Runnelstown, MS
- Average snowfall in December: 0.39"
The month with the highest snowfall is December (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Runnelstown, MS
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Runnelstown, 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 36min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Runnelstown, MS
- Average sunshine days in December: 14.9 days
The months with the most sunshine days are October and November (19.8 days).
The month with the least sunshine days is August (6.4 days).
Average UV index in December
Runnelstown, MS
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Runnelstown, 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 29).
Average visibility in December
Runnelstown, MS
- Average visibility in December: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Runnelstown, Mississippi, USA
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