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
Olympia's progression into December includes a drop in the average high-temperature, from a cool 52.7°F (11.5°C) in November to a chilly 43.7°F (6.5°C). In December, Olympia's temperature tends to fall to an average low of 32.2°F (0.1°C) during the night.Humidity
In December, the average relative humidity is 80%.Rainfall
In Olympia, in December, during 13 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Olympia, during the entire year, the rain falls for 176 days and collects up to 33.66" (855mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Olympia, in December, snow falls for 8.2 days, with typically accumulated 2.17" (55mm) of snow. In Olympia, Kentucky, during the entire year, snow falls for 37.3 days and aggregates up to 11.57" (294mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:32 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:25 pm EST.
Sunshine
The average sunshine in December in Olympia is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Olympia. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Olympia?
What is the average humidity in December in Olympia?
How much does it rain in Olympia in December?
How many days does it snow in December in Olympia?
What is the month with the shortest days in Olympia?
How many hours of daylight does Olympia have in December?
What time are sunrise and sunset in December in Olympia?
How long on average sun shines in December in Olympia?
When is the lowest UV index in Olympia?
What is the UV index reading in December in Olympia?
Average temperature in December
Olympia, KY
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Olympia, KY
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Olympia, KY
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Olympia, KY
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Olympia, KY
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is May (3.58").
The driest months (with the least rainfall) are September and October (2.05").
Average rainfall days in December
Olympia, KY
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in December
Olympia, KY
- Average snowfall in December: 2.17"
The month with the highest snowfall is January (2.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Olympia, KY
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Olympia, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Olympia, KY
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in December
Olympia, KY
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Olympia, KY
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Olympia, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).
Olympia, Kentucky, USA
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