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
In Billi, the beginning of December is marked by a lowered average high-temperature, shifting from November's enjoyable 17.2°C (63°F) to a fresh 11.1°C (52°F). During the nights in December, the temperature in Billi, Syria, averages to an icy 4.8°C (40.6°F).Humidity
The average relative humidity in December is 67%.Rainfall
December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 65mm (2.56") of precipitation.Snowfall
Months with snowfall are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.7 snowfall days, it receives 13mm (0.51") of snow. In Billi, during the entire year, snow falls for 2.9 days and aggregates up to 56mm (2.2") of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:21 and sunset at 17:11. On the last day of December, sunrise is at 07:39 and sunset at 17:21 +03.
Sunshine
In Billi, the average sunshine in December is 5.4h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Billi have in December?
What time are sunrise and 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 reading in December?
Average temperature in December
Billi, Syria
- Average high temperature in December: 11.1°C
The warmest month (with the highest average high temperature) is July (38.1°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in December: 4.8°C
The month with the highest average low temperature is July (23.8°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).
Average pressure in December
Billi, Syria
- Average pressure in December: 1020.1mbar
The month with the highest atmospheric pressure is December (1020.1mbar).
The month with the lowest atmospheric pressure is July (1003.6mbar).
Average wind speed in December
Billi, Syria
- Average wind speed in December: 9.2km/h
The windiest month (with the highest average wind speed) is July (14.4km/h).
The calmest month (with the lowest average wind speed) is November (8km/h).
Average humidity in December
Billi, Syria
- Average humidity in December: 67%
The month with the highest relative humidity is January (71%).
The months with the lowest relative humidity are July and August (32%).
Average rainfall in December
Billi, Syria
- Average rainfall in December: 65mm
The wettest month (with the highest rainfall) is December (65mm).
The driest months (with the least rainfall) are July and August (0mm).
Average rainfall days in December
Billi, Syria
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is March (12.8 days).
The months with the least rainy days are July and August (0.3 days).
Average snowfall in December
Billi, Syria
- Average snowfall in December: 13mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Billi, Syria
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Billi, Syria
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Billi, Syria
- Average sunshine days in December: 18.3 days
The months with the most sunshine days are July and August (30.5 days).
The month with the least sunshine days is February (15.5 days).
Average UV index in December
Billi, Syria
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Billi, Syria
- Average cloud cover in December: 40
The month with the most cloud cover is January (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 2).
Average visibility in December
Billi, Syria
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March and December (9km).
