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 beginning of December brings a minor change in the average high-temperature, shifting from a frosty 8.4°C (47.1°F) in November to an icy 4.7°C (40.5°F). Throughout December, Jalhay reports a steady low-temperature average of 0.7°C (33.3°F), slightly lower than its daytime counterpart.Humidity
The months with the highest humidity in Jalhay are January and December, with an average relative humidity of 90%.Rainfall
The month with the most rainfall in Jalhay is December, when the rain falls for 14.9 days and typically aggregates up to 64mm (2.52") of precipitation.Snowfall
Months with snowfall in Jalhay are January through May, October through December. In Jalhay, in December, during 5.6 snowfall days, 52mm (2.05") of snow is typically accumulated. Throughout the year, there are 28 snowfall days, and 235mm (9.25") of snow is accumulated.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year in Jalhay.On the first day of December, sunrise is at 08:15 and sunset at 16:34. On the last day of the month, sunrise is at 08:37 and sunset at 16:41 CET.
Sunshine
December has the least sunshine of the year, with an average of 3.4h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Jalhay?
What is the most humid month in Jalhay?
What is the average humidity in December in Jalhay?
What is the wettest month in Jalhay?
How much does it rain in Jalhay in December?
How many days does it snow in December in Jalhay?
What is the month with the shortest days in Jalhay?
What is the average length of the day in December in Jalhay?
When are sunrise and sunset in December in Jalhay?
What is the month with the least sunshine in Jalhay?
How many hours of sunshine does Jalhay have in December?
When is the lowest UV index in Jalhay?
What is the UV index intensity in December in Jalhay?
Average temperature in December
Jalhay, Belgium
- Average high temperature in December: 4.7°C
The warmest months (with the highest average high temperature) are July and August (21.6°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in December: 0.7°C
The month with the highest average low temperature is August (12.1°C).
The coldest months (with the lowest average low temperature) are January and February (-0.8°C).
Average pressure in December
Jalhay, Belgium
- Average pressure in December: 1017mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.2mbar).
Average wind speed in December
Jalhay, Belgium
- Average wind speed in December: 17km/h
The windiest month (with the highest average wind speed) is December (17km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).
Average humidity in December
Jalhay, Belgium
- Average humidity in December: 90%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April and August (79%).
Average rainfall in December
Jalhay, Belgium
- Average rainfall in December: 64mm
The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in December
Jalhay, Belgium
- Average rainfall days in December: 14.9 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in December
Jalhay, Belgium
- Average snowfall in December: 52mm
The month with the highest snowfall is February (76mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Jalhay, Belgium
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jalhay, Belgium
- Average daylight in December: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in December
Jalhay, Belgium
- Average sunshine days in December: 9.7 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in December
Jalhay, Belgium
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Jalhay, Belgium
- Average cloud cover in December: 67
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in December
Jalhay, Belgium
- Average visibility in December: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).
