December weather forecastGromiec, Poland
December
Weather in December
December, the first month of the winter in Gromiec, is still a cold month, with an average temperature varying between 2.7°C (36.9°F) and -1.7°C (28.9°F).Temperature
As December arrives, Gromiec's weather displays a decrease in high-temperatures, transitioning from November's frosty 8.5°C (47.3°F) to a cold 2.7°C (36.9°F). December records a small disparity from daytime temperatures, marking an average low-temperature of -1.7°C (28.9°F) in Gromiec.Humidity
In Gromiec, the average relative humidity in December is 84%.Rainfall
In Gromiec, Poland, in December, during 11.2 rainfall days, 38mm (1.5") of precipitation is typically accumulated. Throughout the year, there are 158.1 rainfall days, and 492mm (19.37") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Gromiec, during December, snow falls for 11.1 days and regularly aggregates up to 114mm (4.49") of snow. In Gromiec, during the entire year, snow falls for 55.2 days and aggregates up to 526mm (20.71") of snow.Daylight
December has the shortest days of the year in Gromiec, with an average of 8h and 12min of daylight.On the first day of the month, sunrise is at 07:20 and sunset at 15:43. On the last day of December, in Gromiec, sunrise is at 07:41 and sunset at 15:50 CET.
Sunshine
In Gromiec, the average sunshine in December is 4.2h.UV index
The month with the lowest UV index in Gromiec is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gromiec, Poland
- Average high temperature in December: 2.7°C
The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (0.5°C).
- Average low temperature in December: -1.7°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in December
Gromiec, Poland
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1014.5mbar).
Average wind speed in December
Gromiec, Poland
- Average wind speed in December: 12.8km/h
The windiest month (with the highest average wind speed) is December (12.8km/h).
The calmest month (with the lowest average wind speed) is August (9.2km/h).
Average humidity in December
Gromiec, Poland
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Gromiec, Poland
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is November (27mm).
Average rainfall days in December
Gromiec, Poland
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in December
Gromiec, Poland
- Average snowfall in December: 114mm
The month with the highest snowfall is January (160mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Gromiec, Poland
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gromiec, Poland
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in December
Gromiec, Poland
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is August (17.9 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Gromiec, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Gromiec, Poland
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Gromiec, Poland
- Average visibility in December: 8km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and December (8km).
