December weather forecastHeiligenberg, Austria
December
Weather in December
December, the first month of the winter in Heiligenberg, is also an icy month, with an average temperature ranging between min -1.5°C (29.3°F) and max 3.4°C (38.1°F).Temperature
Heiligenberg observes a minor decrease in the average high-temperature with the arrival of December, falling from November's frosty 8.5°C (47.3°F) to a cold 3.4°C (38.1°F). Nights in December in Heiligenberg, Austria, showcase an average temperature of -1.5°C (29.3°F), slightly cooler than the daytime.Humidity
The average relative humidity in December is 85%.Rainfall
In December, in Heiligenberg, the rain falls for 13.3 days. Throughout December, 56mm (2.2") of precipitation is accumulated. Throughout the year, in Heiligenberg, there are 172.5 rainfall days, and 702mm (27.64") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Heiligenberg, during December, snow falls for 8.2 days and regularly aggregates up to 100mm (3.94") of snow. Throughout the year, in Heiligenberg, Austria, there are 39.8 snowfall days, and 519mm (20.43") of snow is accumulated.Daylight
The month with the shortest days in Heiligenberg, Austria, is December, with an average of 8h and 24min of daylight.On the first day of December in Heiligenberg, sunrise is at 07:35 and sunset at 16:12. On the last day of the month, sunrise is at 07:55 and sunset at 16:19 CET.
Sunshine
The average sunshine in December is 4.5h.UV index
In Heiligenberg, Austria, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Heiligenberg, Austria
- Average high temperature in December: 3.4°C
The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (1.8°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is August (12.4°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).
Average pressure in December
Heiligenberg, Austria
- Average pressure in December: 1020.3mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is May (1015.6mbar).
Average wind speed in December
Heiligenberg, Austria
- Average wind speed in December: 9.5km/h
The windiest month (with the highest average wind speed) is March (10.3km/h).
The calmest month (with the lowest average wind speed) is August (6.8km/h).
Average humidity in December
Heiligenberg, Austria
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Heiligenberg, Austria
- Average rainfall in December: 56mm
The wettest months (with the highest rainfall) are May, June and July (81mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Heiligenberg, Austria
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in December
Heiligenberg, Austria
- Average snowfall in December: 100mm
The month with the highest snowfall is January (177mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Heiligenberg, Austria
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heiligenberg, Austria
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Heiligenberg, Austria
- Average sunshine days in December: 12.6 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in December
Heiligenberg, Austria
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Heiligenberg, Austria
- Average cloud cover in December: 53
The months with the most cloud cover are January and February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Heiligenberg, Austria
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January and February (7km).
