December weather forecastHemer, Germany
December
Weather in December
December, the first month of the winter in Hemer, is also a wintry month, with an average temperature fluctuating between 4.7°C (40.5°F) and 0.9°C (33.6°F).Temperature
December's arrival subtly correlates with a reduction in the average high-temperature, down from a chilly 8.5°C (47.3°F) in November to a wintry 4.7°C (40.5°F). Hemer, in December, registers a nighttime average temperature of 0.9°C (33.6°F).Humidity
January and December, with an average relative humidity of 89%, are the most humid months.Rainfall
The month with the most rainfall is December, when the rain falls for 17.7 days and typically aggregates up to 76mm (2.99") of precipitation.Snowfall
Months with snowfall in Hemer are January through May, October through December. In Hemer, Germany, during December, snow falls for 8.4 days and regularly aggregates up to 102mm (4.02") of snow. In Hemer, Germany, during the entire year, snow falls for 37.4 days and aggregates up to 381mm (15") of snow.Daylight
The month with the shortest days in Hemer is December, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 08:12 and sunset at 16:23. On the last day of December, sunrise is at 08:33 and sunset at 16:30 CET.
Sunshine
With an average of 3.5h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Hemer are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hemer, Germany
- Average high temperature in December: 4.7°C
The warmest months (with the highest average high temperature) are July and August (22.7°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in December: 0.9°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).
Average pressure in December
Hemer, Germany
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in December
Hemer, Germany
- Average wind speed in December: 14.7km/h
The windiest month (with the highest average wind speed) is December (14.7km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in December
Hemer, Germany
- Average humidity in December: 89%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Hemer, Germany
- Average rainfall in December: 76mm
The wettest month (with the highest rainfall) is December (76mm).
The driest months (with the least rainfall) are April and September (32mm).
Average rainfall days in December
Hemer, Germany
- Average rainfall days in December: 17.7 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is September (13.2 days).
Average snowfall in December
Hemer, Germany
- Average snowfall in December: 102mm
The month with the highest snowfall is January (116mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Hemer, Germany
- Average snowfall days in December: 8.4 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hemer, Germany
- Average daylight in December: 7h and 54min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in December
Hemer, Germany
- Average sunshine days in December: 6.6 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is December (6.6 days).
Average UV index in December
Hemer, Germany
- 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, November and December (UV index 2).
Average cloud cover in December
Hemer, Germany
- 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 38).
Average visibility in December
Hemer, Germany
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, February, March, September, October, November and December (8km).
