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
Start of December brings a shift in the average high-temperature, falling from November's chilly 47.3°F (8.5°C) to an icy 37.6°F (3.1°C). An average temperature of 28.6°F (-1.9°C) is logged during the nights of December, a small step down from daytime highs.Humidity
The average relative humidity in December is 83%.Rainfall
In North Royalton, during December, the rain falls for 8.7 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 165 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In North Royalton, in December, snow falls for 11.9 days, with typically accumulated 3.94" (100mm) of snow. In North Royalton, during the entire year, snow falls for 57.1 days and aggregates up to 19.61" (498mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in North Royalton.On the first day of December in North Royalton, sunrise is at 7:33 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:07 pm EST.
Sunshine
The average sunshine in December is 3.3h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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 much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does North Royalton have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
North Royalton, OH
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
North Royalton, OH
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
North Royalton, OH
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in December
North Royalton, OH
- Average humidity in December: 83%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in December
North Royalton, OH
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in December
North Royalton, OH
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
North Royalton, OH
- Average snowfall in December: 3.94"
The month with the highest snowfall is January (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
North Royalton, OH
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
North Royalton, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
North Royalton, OH
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in December
North Royalton, OH
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
North Royalton, OH
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
North Royalton, OH
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
North Royalton, Ohio, USA
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