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 introduces a moderate change in Gradsko's weather, with average high-temperatures falling from November's cool 12.5°C (54.5°F) to a chilly 6.4°C (43.5°F). During the month of December, an average temperature of 0.4°C (32.7°F) is noted during the nights.Humidity
In Gradsko, the average relative humidity in December is 79%.Rainfall
In December, the rain falls for 10.5 days. Throughout December, 31mm (1.22") of precipitation is accumulated. In Gradsko, during the entire year, the rain falls for 140.5 days and collects up to 455mm (17.91") of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 5.1 days. Throughout December, 77mm (3.03") of snow is accumulated. In Gradsko, during the entire year, snow falls for 22.9 days and aggregates up to 303mm (11.93") of snow.Daylight
The month with the shortest days in Gradsko is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 07:26 and sunset at 16:42. On the last day of December, sunrise is at 07:45 and sunset at 16:51 EET.
Sunshine
In December, the average sunshine is 5.6h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in 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 Gradsko have in December?
When is the sunrise / 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 intensity in December?
Average temperature in December
Gradsko, Bulgaria
- Average high temperature in December: 6.4°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in December: 0.4°C
The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).
Average pressure in December
Gradsko, Bulgaria
- Average pressure in December: 1020.2mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is July (1012.7mbar).
Average wind speed in December
Gradsko, Bulgaria
- Average wind speed in December: 9.8km/h
The windiest months (with the highest average wind speed) are February and March (10.6km/h).
The calmest month (with the lowest average wind speed) is October (8.7km/h).
Average humidity in December
Gradsko, Bulgaria
- Average humidity in December: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (54%).
Average rainfall in December
Gradsko, Bulgaria
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is June (73mm).
The driest month (with the least rainfall) is August (21mm).
Average rainfall days in December
Gradsko, Bulgaria
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is August (8 days).
Average snowfall in December
Gradsko, Bulgaria
- Average snowfall in December: 77mm
The month with the highest snowfall is January (95mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Gradsko, Bulgaria
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is January (6.8 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
Gradsko, 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 42min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Gradsko, Bulgaria
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is August (21.1 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in December
Gradsko, Bulgaria
- Average UV index in December: 2
The months with the highest UV index are 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
Gradsko, Bulgaria
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in December
Gradsko, Bulgaria
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
