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
A shift in Calais's weather is observed as November turns into December, with the average high temperature reducing from a chilly 49.5°F (9.7°C) to a cold 39.7°F (4.3°C). An average low-temperature of 28.6°F (-1.9°C) marks the month of December in Calais.Humidity
In Calais, the average relative humidity in December is 83%.Rainfall
In Calais, during December, the rain falls for 8.6 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 121 rainfall days, and 10.24" (260mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Calais, in December, snow falls for 6.9 days, with typically accumulated 0.75" (19mm) of snow. In Calais, during the entire year, snow falls for 34.6 days and aggregates up to 4.72" (120mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 5:00 pm. On the last day of December, in Calais, sunrise is at 7:46 am and sunset at 5:10 pm EST.
Sunshine
In Calais, the average sunshine in December is 3.5h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Calais have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Calais, OH
- Average high temperature in December: 39.7°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Calais, OH
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Calais, OH
- Average wind speed in December: 7.1mph
The windiest months (with the highest average wind speed) are January and February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Calais, OH
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Calais, OH
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
Calais, OH
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in December
Calais, OH
- Average snowfall in December: 0.75"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Calais, OH
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Calais, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Calais, OH
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in December
Calais, OH
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Calais, OH
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Calais, OH
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Calais, Ohio, USA
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