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
Gromadzin observes a small decrease in the average high-temperature with the arrival of December, falling from November's frosty 6.9°C (44.4°F) to a cold 2.5°C (36.5°F). December nights reflect a consistent temperature dip to a subzero cold -0.4°C (31.3°F), a slight descent from daytime peaks.Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 87%.Rainfall
In December, in Gromadzin, the rain falls for 13.6 days. Throughout December, 42mm (1.65") of precipitation is accumulated. In Gromadzin, during the entire year, the rain falls for 172.5 days and collects up to 497mm (19.57") of precipitation.Snowfall
January through May, October through December are months with snowfall in Gromadzin, Poland. In Gromadzin, in December, snow falls for 11 days, with typically accumulated 110mm (4.33") of snow. In Gromadzin, during the entire year, snow falls for 58 days and aggregates up to 437mm (17.2") of snow.Daylight
With an average of 7h and 24min of daylight, December has the shortest days of the year in Gromadzin, Poland.On the first day of the month, sunrise is at 07:43 and sunset at 15:27. On the last day of December, in Gromadzin, sunrise is at 08:06 and sunset at 15:33 CET.
Sunshine
In Gromadzin, the average sunshine in December is 3.1h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Gromadzin?
What is the most humid month in Gromadzin?
What is the average humidity in December in Gromadzin?
How much does it rain in Gromadzin in December?
How much does it snow in Gromadzin in December?
What is the month with the shortest days in Gromadzin?
How many hours of daylight does Gromadzin have in December?
When are sunrise and sunset in December in Gromadzin?
How many hours of sunshine does Gromadzin have in December?
When is the lowest UV index in Gromadzin?
What is the UV index reading in December in Gromadzin?
Average temperature in December
Gromadzin, Poland
- Average high temperature in December: 2.5°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in December: -0.4°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-2.4°C).
Average pressure in December
Gromadzin, Poland
- Average pressure in December: 1013.2mbar
The month with the highest atmospheric pressure is October (1016.6mbar).
The months with the lowest atmospheric pressure are July and December (1013.2mbar).
Average wind speed in December
Gromadzin, Poland
- Average wind speed in December: 16.8km/h
The windiest month (with the highest average wind speed) is December (16.8km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in December
Gromadzin, Poland
- Average humidity in December: 87%
The months with the highest relative humidity are January, February and December (87%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Gromadzin, Poland
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Gromadzin, Poland
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Gromadzin, Poland
- Average snowfall in December: 110mm
The month with the highest snowfall is January (128mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Gromadzin, Poland
- Average snowfall days in December: 11 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gromadzin, Poland
- Average daylight in December: 7h and 2min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Gromadzin, Poland
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is April (15 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in December
Gromadzin, Poland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Gromadzin, Poland
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Gromadzin, Poland
- Average visibility in December: 9km
The months with the highest visibility are June, August and September (10km).
The months with the lowest visibility are January and February (8km).
