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 is characterized by a reduction in the average high-temperature, from a chilly 49.8°F (9.9°C) in November to a cold 40.1°F (4.5°C). During December, the average low-temperature in Washington Court House is a subzero cold 29.3°F (-1.5°C).Humidity
In Washington Court House, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 10.4 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. In Washington Court House, during the entire year, the rain falls for 139.4 days and collects up to 20.71" (526mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, in Washington Court House, it is snowing for 6.1 days. Throughout December, 1.54" (39mm) of snow is accumulated. In Washington Court House, during the entire year, snow falls for 28.8 days and aggregates up to 8.27" (210mm) of snow.Daylight
December has the shortest days of the year in Washington Court House, with an average of 9h and 24min of daylight.On the first day of December in Washington Court House, sunrise is at 7:35 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 5:20 pm EST.
Sunshine
In December, the average sunshine is 3.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Washington Court House?
What is the average humidity in December in Washington Court House?
How many days does it rain in December in Washington Court House?
How many days does it snow in December in Washington Court House?
What is the month with the shortest days in Washington Court House?
How many hours of daylight does Washington Court House have in December?
What time are sunrise and sunset in December in Washington Court House?
How many hours of sunshine does Washington Court House have in December?
What is the month with the lowest UV index in Washington Court House?
What is the UV index reading in December in Washington Court House?
Average temperature in December
Washington Court House, OH
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Washington Court House, OH
- 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 (29.94"Hg).
Average wind speed in December
Washington Court House, OH
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Washington Court House, OH
- Average humidity in December: 82%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Washington Court House, OH
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in December
Washington Court House, OH
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in December
Washington Court House, OH
- Average snowfall in December: 1.54"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Washington Court House, OH
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Washington Court House, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Washington Court House, OH
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in December
Washington Court House, OH
- Average UV index in December: 2
The months with the highest UV index are 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
Washington Court House, OH
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Washington Court House, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Washington Court House, Ohio, USA
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