December weather forecastGroty, Poland
December
Weather in December
The first month of the winter, December, is still a cold month in Groty, Poland, with an average temperature ranging between max 2.3°C (36.1°F) and min -1.3°C (29.7°F).Temperature
The onset of December is marked by a minor decrease in temperature, transitioning from a chilly 7.2°C (45°F) in November to an icy 2.3°C (36.1°F). A modest nighttime temperature average of -1.3°C (29.7°F) characterizes December.Humidity
In Groty, the average relative humidity in December is 87%.Rainfall
In Groty, during December, the rain falls for 11.3 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, in Groty, there are 141.3 rainfall days, and 353mm (13.9") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Groty, Poland. In Groty, during December, snow falls for 9.9 days and regularly aggregates up to 63mm (2.48") of snow. In Groty, during the entire year, snow falls for 48.2 days and aggregates up to 369mm (14.53") of snow.Daylight
With an average of 7h and 48min of daylight, December has the shortest days of the year in Groty.On the first day of December in Groty, sunrise is at 07:23 and sunset at 15:27. On the last day of the month, sunrise is at 07:45 and sunset at 15:33 CET.
Sunshine
The average sunshine in December in Groty is 3.3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 1 during December leads to these instructions:
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. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Groty, Poland
- Average high temperature in December: 2.3°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in December: -1.3°C
The month with the highest average low temperature is August (15.2°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in December
Groty, Poland
- Average pressure in December: 1016.1mbar
The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in December
Groty, Poland
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in December
Groty, Poland
- Average humidity in December: 87%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Groty, Poland
- Average rainfall in December: 32mm
The wettest month (with the highest rainfall) is May (52mm).
The driest months (with the least rainfall) are April and November (21mm).
Average rainfall days in December
Groty, Poland
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Groty, Poland
- Average snowfall in December: 63mm
The month with the highest snowfall is January (133mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Groty, Poland
- Average snowfall days in December: 9.9 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Groty, Poland
- Average daylight in December: 7h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in December: 3h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Groty, Poland
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is August (18.6 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Groty, 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 and December (UV index 1).
Average cloud cover in December
Groty, Poland
- Average cloud cover in December: 68
The months with the most cloud cover are January and February (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Groty, Poland
- Average visibility in December: 8km
The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (7km).





