December weather forecastIserlohn, Germany
December
Weather in December
The first month of the winter, December, is also a wintry month in Iserlohn, Germany, with temperature in the range of an average low of 0.9°C (33.6°F) and an average high of 4.7°C (40.5°F).Temperature
In Iserlohn, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's chilly 8.5°C (47.3°F) to a cold 4.7°C (40.5°F). A modest decline from daytime high temperatures is noticed in December, marking the average low at a still icy 0.9°C (33.6°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 89%.Rainfall
December is the month with the most rainfall in Iserlohn, Germany. Rain falls for 17.7 days and accumulates 76mm (2.99") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Iserlohn, in December, snow falls for 8.4 days, with typically accumulated 102mm (4.02") of snow. In Iserlohn, 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 Iserlohn is December, with an average of 7h and 54min of daylight.On the first day of December in Iserlohn, Germany, sunrise is at 08:12 and sunset at 16:24. On the last day of the month, sunrise is at 08:34 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
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Iserlohn. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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
Iserlohn, 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).
