December weather forecastGlenroy, OH
December
Weather in December
December, the first month of the winter in Glenroy, is still a chilly month, with an average temperature ranging between min 32.5°F (0.3°C) and max 44.2°F (6.8°C).Temperature
As Glenroy enters December, the average high-temperature decreases from the a cool 53.2°F (11.8°C) of November to a chilly 44.2°F (6.8°C). Glenroy, during December, witnesses an average low-temperature of 32.5°F (0.3°C).Humidity
In Glenroy, the average relative humidity in December is 80%.Rainfall
In Glenroy, in December, during 12.9 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Glenroy, during the entire year, the rain falls for 164.7 days and collects up to 26.26" (667mm) of precipitation.Snowfall
Months with snowfall in Glenroy are January through April, October through December. In Glenroy, during December, snow falls for 8.2 days and regularly aggregates up to 2.28" (58mm) of snow. In Glenroy, during the entire year, snow falls for 37.9 days and aggregates up to 12.44" (316mm) of snow.Daylight
The month with the shortest days in Glenroy is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:47 am and sunset at 5:19 pm EST.
Sunshine
In December, the average sunshine in Glenroy is 4.1h.UV index
The months with the lowest UV index in Glenroy are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Glenroy, OH
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 32.5°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in December
Glenroy, OH
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Glenroy, OH
- Average wind speed in December: 6.3mph
The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Glenroy, OH
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Glenroy, OH
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Glenroy, OH
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Glenroy, OH
- Average snowfall in December: 2.28"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Glenroy, OH
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Glenroy, OH
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Glenroy, OH
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in December
Glenroy, 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 and December (UV index 2).
Average cloud cover in December
Glenroy, OH
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Glenroy, OH
- Average visibility in December: 5mi
The months with the highest visibility are April, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, September and December (5mi).
