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 indicates a decrease in the average high-temperature, moving from a cool 50.9°F (10.5°C) in November to a wintry 40.8°F (4.9°C). Throughout December, Ross witnesses a nighttime temperature average of 29.5°F (-1.4°C).Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 81%.Rainfall
In Ross, in December, it is raining for 10.5 days, with typically 1.93" (49mm) of accumulated precipitation. In Ross, during the entire year, the rain falls for 147.8 days and collects up to 24.33" (618mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Ross, during December, snow falls for 4.9 days and regularly aggregates up to 1.22" (31mm) of snow. Throughout the year, there are 25 snowfall days, and 6.57" (167mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:39 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:58 am and sunset at 5:25 pm EST.
Sunshine
In December, the average sunshine is 4.2h.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 minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 1 during December translates into these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What are the most humid months?
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 are sunrise and sunset in December?
How many hours of sunshine does Ross have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Ross, OH
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Ross, 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
Ross, OH
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Ross, OH
- Average humidity in December: 81%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Ross, OH
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Ross, OH
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Ross, OH
- Average snowfall in December: 1.22"
The months with the highest snowfall are February and March (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Ross, OH
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Ross, OH
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Ross, OH
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Ross, OH
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Ross, OH
- 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 27).
Average visibility in December
Ross, OH
- 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).
Ross, Ohio, USA
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