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 corresponds with a minor reduction in the average high-temperature, down from November's comfortable 65.3°F (18.5°C) to a moderate 59.5°F (15.3°C). An average minimum temperature of 44.6°F (7°C) marks the month of December.Humidity
With an average relative humidity of 77%, December is the most humid month in Shirley.Rainfall
In December, in Shirley, South Carolina, the rain falls for 10.6 days. Throughout December, 3.23" (82mm) of precipitation is accumulated. In Shirley, South Carolina, during the entire year, the rain falls for 158.7 days and collects up to 30.28" (769mm) of precipitation.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 0.6 snowfall days, and 0.24" (6mm) of snow is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December in Shirley, sunrise is at 7:09 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:29 pm EST.
Sunshine
With an average of 5.5h 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 in Shirley. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 3 transforms into the following instructions:
Guard yourself - Avoiding sunburn is suggested. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Shirley in December?
What is the most humid month in Shirley?
What is the average humidity in December in Shirley?
How many days does it rain in December in Shirley?
When does it start to snow in Shirley?
What is the month with the shortest days in Shirley?
What is the average length of the day in December in Shirley?
What time are sunrise and sunset in December in Shirley?
What is the month with the least sunshine in Shirley?
How many hours of sunshine does Shirley have in December?
What are the months with the lowest UV index in Shirley?
What is the UV index reading in December in Shirley?
Average temperature in December
Shirley, SC
- Average high temperature in December: 59.5°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in December: 44.6°F
The months with the highest average low temperature are July and August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in December
Shirley, SC
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Shirley, SC
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Shirley, SC
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is January (71%).
Average rainfall in December
Shirley, SC
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is November (1.38").
Average rainfall days in December
Shirley, SC
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Shirley, SC
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Shirley, SC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Shirley, SC
- Average daylight in December: 10h and 0min
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 0min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Shirley, SC
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is August (7.8 days).
Average UV index in December
Shirley, SC
- 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
Shirley, SC
- Average cloud cover in December: 41
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are July and October (Cloud cover 29).
Average visibility in December
Shirley, SC
- 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).
Shirley, South Carolina, USA
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