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
December's onset brings a negligible change in high-temperatures, falling from a chilly 8.9°C (48°F) in November to a wintry 5.2°C (41.4°F). Night temperatures in December exhibit a subtle decrease, settling at an average of 1.4°C (34.5°F).Humidity
With an average relative humidity of 89%, December is the most humid month.Rainfall
December is the month with the most rainfall. Rain falls for 10.6 days and accumulates 17mm (0.67") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Hamm, in December, snow falls for 4.5 days, with typically accumulated 14mm (0.55") of snow. Throughout the year, there are 17.5 snowfall days, and 51mm (2.01") of snow is accumulated.Daylight
With an average of 7h and 54min of daylight, December has the shortest days of the year in Hamm.On the first day of the month, sunrise is at 08:13 and sunset at 16:22. On the last day of December, sunrise is at 08:35 and sunset at 16:28 CET.
Sunshine
The month with the least sunshine is December, with an average of 3.6h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Opt for tightly woven and loose clothing to enhance protection from the Sun. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Hamm during December?
What is the most humid month in Hamm?
What is the average humidity in December in Hamm?
What is the rainiest month in Hamm?
How much does it rain in Hamm in December?
How much does it snow in Hamm in December?
What is the month with the shortest days in Hamm?
What is the average length of the day in December in Hamm?
What time are sunrise and sunset in December in Hamm?
What is the month with the least sunshine in Hamm?
How long on average sun shines in December in Hamm?
What are the months with the lowest UV index in Hamm?
What is the UV index intensity in December in Hamm?
Average temperature in December
Hamm, Germany
- Average high temperature in December: 5.2°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in December: 1.4°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in December
Hamm, Germany
- Average pressure in December: 1015.9mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1013mbar).
Average wind speed in December
Hamm, Germany
- Average wind speed in December: 15.7km/h
The windiest month (with the highest average wind speed) is December (15.7km/h).
The calmest months (with the lowest average wind speed) are July and August (10.3km/h).
Average humidity in December
Hamm, Germany
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (73%).
Average rainfall in December
Hamm, Germany
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is December (17mm).
The driest month (with the least rainfall) is September (9mm).
Average rainfall days in December
Hamm, Germany
- Average rainfall days in December: 10.6 days
The months with the highest number of rainy days are May and July (13.3 days).
The month with the least rainy days is September (8.3 days).
Average snowfall in December
Hamm, Germany
- Average snowfall in December: 14mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Hamm, Germany
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Hamm, Germany
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 4min
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 36min).
Average sunshine days in December
Hamm, Germany
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is October (18.7 days).
The months with the least sunshine days are May and June (13.8 days).
Average UV index in December
Hamm, Germany
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Hamm, Germany
- Average cloud cover in December: 65
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Hamm, Germany
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, October, November and December (8km).
