December weather forecastGrudno, Poland
December
Weather in December
The first month of the winter, December, is also an icy month in Grudno, Poland, with an average temperature varying between -1.6°C (29.1°F) and 2°C (35.6°F).Temperature
The onset of December coincides with a reduction in the average high-temperature, falling from a frosty 7°C (44.6°F) in November to a wintry 2°C (35.6°F). A consistent nighttime average temperature of -1.6°C (29.1°F) is maintained during December.Humidity
In Grudno, the average relative humidity in December is 87%.Rainfall
In December, in Grudno, the rain falls for 10.6 days. Throughout December, 45mm (1.77") of precipitation is accumulated. In Grudno, during the entire year, the rain falls for 162.4 days and collects up to 574mm (22.6") of precipitation.Snowfall
January through May, October through December are months with snowfall in Grudno. In Grudno, during December, snow falls for 11.5 days and regularly aggregates up to 147mm (5.79") of snow. Throughout the year, there are 55.5 snowfall days, and 742mm (29.21") of snow is accumulated.Daylight
With an average of 8h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:37 and sunset at 15:52. On the last day of December, sunrise is at 07:58 and sunset at 15:59 CET.
Sunshine
In December, the average sunshine is 3.9h.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 1 during December translates into these guidelines:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grudno, Poland
- Average high temperature in December: 2°C
The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is January (0.1°C).
- Average low temperature in December: -1.6°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (-4.1°C).
Average pressure in December
Grudno, Poland
- Average pressure in December: 1017.5mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1014.7mbar).
Average wind speed in December
Grudno, Poland
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is December (13.5km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in December
Grudno, Poland
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in December
Grudno, Poland
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is June (73mm).
The driest months (with the least rainfall) are April and November (28mm).
Average rainfall days in December
Grudno, Poland
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Grudno, Poland
- Average snowfall in December: 147mm
The month with the highest snowfall is January (210mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grudno, Poland
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grudno, Poland
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Grudno, Poland
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is October (17.3 days).
The months with the least sunshine days are May and June (9.3 days).
Average UV index in December
Grudno, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Grudno, Poland
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Grudno, Poland
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
