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
Glen Roy's progression into December includes a drop in the average high-temperature, from a fresh 51.6°F (10.9°C) in November to an icy 41.9°F (5.5°C). In Glen Roy, the average nighttime temperature during December is a subzero cold 30.9°F (-0.6°C).Humidity
January, February and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In Glen Roy, during December, the rain falls for 11.2 days and regularly aggregates up to 2.95" (75mm) of precipitation. Throughout the year, in Glen Roy, there are 161.8 rainfall days, and 30.83" (783mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Glen Roy, during December, snow falls for 7.8 days and regularly aggregates up to 2.01" (51mm) of snow. Throughout the year, there are 35.8 snowfall days, and 12.28" (312mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Glen Roy.On the first day of the month, sunrise is at 7:31 am and sunset at 5:08 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:17 pm EST.
Sunshine
The average sunshine in December in Glen Roy, Ohio, is 4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Glen Roy. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Stay sun-safe with clothing that is both closely woven and worn loosely. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold does it get in Glen Roy in December?
What is the most humid month in Glen Roy?
What is the average humidity in December in Glen Roy?
How much does it rain in Glen Roy in December?
How much does it snow in Glen Roy in December?
What is the month with the shortest days in Glen Roy?
What is the average length of the day in December in Glen Roy?
When is the sunrise / sunset in December in Glen Roy?
How many hours of sunshine does Glen Roy have in December?
When is the lowest UV index in Glen Roy?
How high is the UV index in December in Glen Roy?
Average temperature in December
Glen Roy, OH
- Average high temperature in December: 41.9°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 (36.3°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Glen Roy, OH
- 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
Glen Roy, OH
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Glen Roy, OH
- Average humidity in December: 82%
The months with the highest relative humidity are January, February and December (82%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Glen Roy, OH
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is October (1.97").
Average rainfall days in December
Glen Roy, OH
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Glen Roy, OH
- Average snowfall in December: 2.01"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Glen Roy, OH
- Average snowfall days in December: 7.8 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
Glen Roy, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Glen Roy, OH
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in December
Glen Roy, OH
- 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
Glen Roy, OH
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Glen Roy, OH
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
Glen Roy, Ohio, USA
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