December weather forecastThornville, OH
December
Weather in December
The first month of the winter, December, is still a cold month in Thornville, Ohio, with an average temperature ranging between max 39.4°F (4.1°C) and min 28.8°F (-1.8°C).Temperature
As Thornville enters December, the average high-temperature decreases from the a chilly 49.3°F (9.6°C) of November to a cold 39.4°F (4.1°C). An average nighttime temperature of 28.8°F (-1.8°C) is recorded in Thornville during December.Humidity
In Thornville, the average relative humidity in December is 82%.Rainfall
The month with the least rainfall in Thornville is December, when the rain falls for 7.3 days and typically collects 0.79" (20mm) of precipitation.Snowfall
Months with snowfall in Thornville are January through April, November and December. In December, in Thornville, Ohio, it is snowing for 5.9 days. Throughout December, 0.55" (14mm) of snow is accumulated. In Thornville, during the entire year, snow falls for 28.3 days and aggregates up to 2.52" (64mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:32 am and sunset at 5:05 pm. On the last day of December, sunrise is at 7:51 am and sunset at 5:14 pm EST.
Sunshine
In December, the average sunshine in Thornville, Ohio, is 3.7h.UV index
December is the month with the lowest UV index in Thornville, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thornville, OH
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Thornville, 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 (29.94"Hg).
Average wind speed in December
Thornville, OH
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in December
Thornville, OH
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Thornville, OH
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in December
Thornville, OH
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is May (16.6 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in December
Thornville, OH
- Average snowfall in December: 0.55"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Thornville, OH
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (8.8 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
Thornville, OH
- Average daylight in December: 9h and 24min
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 42min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Thornville, OH
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is November (20.8 days).
The months with the least sunshine days are May and July (11.3 days).
Average UV index in December
Thornville, OH
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Thornville, OH
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Thornville, OH
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
