December weather forecastOlar, SC
December
Weather in December
December, the first month of the winter in Olar, is also a moderate month, with an average temperature ranging between max 57.4°F (14.1°C) and min 43.5°F (6.4°C).Temperature
The transition to December results in a modest reduction in average high-temperature, moving from an enjoyable 63.5°F (17.5°C) in November to a still refreshing 57.4°F (14.1°C). During December, Olar's temperature falls to a steady low-temperature average of 43.5°F (6.4°C).Humidity
December is the most humid month, with an average relative humidity of 76%.Rainfall
In Olar, during December, the rain falls for 9.1 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 135.5 rainfall days, and 15.67" (398mm) of precipitation is accumulated.Snowfall
In Olar, South Carolina, snow does not fall in January, March through December.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 5:17 pm. On the last day of December, sunrise is at 7:27 am and sunset at 5:28 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.5h of sunshine.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 3 during December translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Olar, SC
- Average high temperature in December: 57.4°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in December: 43.5°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in December
Olar, SC
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Olar, SC
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Olar, SC
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is January (70%).
Average rainfall in December
Olar, SC
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is August (2.17").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in December
Olar, SC
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is November (6.3 days).
Average snowfall in December
Olar, SC
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Olar, SC
- Average snowfall days in December: 0.2 days
The months with the highest number of snowfall days are January, February and December (0.2 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
Olar, 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 30min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Olar, SC
- Average sunshine days in December: 20.2 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is August (9.7 days).
Average UV index in December
Olar, SC
- 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, February and December (UV index 3).
Average cloud cover in December
Olar, SC
- Average cloud cover in December: 41
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in December
Olar, 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).
