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
December
Weather in December
Temperature
The onset of December entails a temperature shift, as the average high-temperature decreases from a cool 11.3°C (52.3°F) in November to a wintry 4.7°C (40.5°F). In December, Roman's temperature tends to fall to an average low of -1.5°C (29.3°F) during the night.Humidity
In December, the average relative humidity is 79%.Rainfall
In December, the rain falls for 9.8 days. Throughout December, 34mm (1.34") of precipitation is accumulated. In Roman, during the entire year, the rain falls for 152.9 days and collects up to 591mm (23.27") of precipitation.Snowfall
January through April, October through December are months with snowfall. In Roman, in December, snow falls for 7.3 days, with typically accumulated 102mm (4.02") of snow. In Roman, during the entire year, snow falls for 33.9 days and aggregates up to 746mm (29.37") of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 07:36 and sunset at 16:50. On the last day of the month, sunrise is at 07:55 and sunset at 16:59 EET.
Sunshine
In Roman, the average sunshine in December is 5.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in Roman in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Roman have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Roman have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Roman, Bulgaria
- Average high temperature in December: 4.7°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (2.5°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in December
Roman, Bulgaria
- Average pressure in December: 1020.9mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The months with the lowest atmospheric pressure are May, June and July (1013.8mbar).
Average wind speed in December
Roman, Bulgaria
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is March (9.5km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).
Average humidity in December
Roman, Bulgaria
- Average humidity in December: 79%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Roman, Bulgaria
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is June (90mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in December
Roman, Bulgaria
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Roman, Bulgaria
- Average snowfall in December: 102mm
The month with the highest snowfall is January (196mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Roman, Bulgaria
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roman, Bulgaria
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Roman, Bulgaria
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in December
Roman, Bulgaria
- Average UV index in December: 2
The months with the highest UV index are 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
Roman, Bulgaria
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Roman, Bulgaria
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).
