December weather forecastBierniki, Poland
December
Weather in December
December, the first month of the winter in Bierniki, is also an icy month, with temperature in the range of an average low of -2.6°C (27.3°F) and an average high of 0.5°C (32.9°F).Temperature
The commencement of December involves a temperature shift, with the average high-temperature dropping from a cold 5.5°C (41.9°F) in November to a still icy 0.5°C (32.9°F). Throughout December, Bierniki records a steady low-temperature average of -2.6°C (27.3°F), a minor decrease from its daytime counterpart.Humidity
In Bierniki, the average relative humidity in December is 91%.Rainfall
In December, the rain falls for 10.5 days. Throughout December, 36mm (1.42") of precipitation is accumulated. Throughout the year, there are 156.6 rainfall days, and 459mm (18.07") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Bierniki, Poland. In Bierniki, Poland, during December, snow falls for 13.4 days and regularly aggregates up to 110mm (4.33") of snow. In Bierniki, during the entire year, snow falls for 65.1 days and aggregates up to 519mm (20.43") of snow.Daylight
With an average of 7h and 36min of daylight, December has the shortest days of the year in Bierniki.On the first day of December, sunrise is at 07:19 and sunset at 15:10. On the last day of the month, sunrise is at 07:42 and sunset at 15:15 CET.
Sunshine
In December, the average sunshine in Bierniki is 1.7h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 1 transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bierniki, Poland
- Average high temperature in December: 0.5°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-1.8°C).
- Average low temperature in December: -2.6°C
The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).
Average pressure in December
Bierniki, Poland
- Average pressure in December: 1015.1mbar
The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013mbar).
Average wind speed in December
Bierniki, Poland
- Average wind speed in December: 13.4km/h
The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in December
Bierniki, Poland
- Average humidity in December: 91%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are April and August (71%).
Average rainfall in December
Bierniki, Poland
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is June (59mm).
The driest months (with the least rainfall) are February and April (25mm).
Average rainfall days in December
Bierniki, Poland
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (19.9 days).
The months with the least rainy days are January and February (7.5 days).
Average snowfall in December
Bierniki, Poland
- Average snowfall in December: 110mm
The month with the highest snowfall is January (155mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Bierniki, Poland
- Average snowfall days in December: 13.4 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bierniki, Poland
- Average daylight in December: 7h and 36min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 1h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in December
Bierniki, Poland
- Average sunshine days in December: 9.8 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in December
Bierniki, Poland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Bierniki, Poland
- Average cloud cover in December: 77
The month with the most cloud cover is February (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Bierniki, Poland
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July, August and September (9km).
The month with the lowest visibility is January (6km).
