December weather forecastGrójczyk, Poland
December
Weather in December
The first month of the winter, December, is also an icy month in Grójczyk, Poland, with temperature in the range of an average low of -1°C (30.2°F) and an average high of 2.5°C (36.5°F).Temperature
With the commencement of December, Grójczyk records a moderate temperature decline, with the average high easing from November's chilly 7.2°C (45°F) to a wintry 2.5°C (36.5°F). An average nighttime temperature of -1°C (30.2°F) marks December.Humidity
The average relative humidity in December in Grójczyk, Poland, is 87%.Rainfall
In Grójczyk, in December, it is raining for 11.4 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, in Grójczyk, there are 142.7 rainfall days, and 343mm (13.5") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Grójczyk, Poland, in December, during 6.8 snowfall days, 30mm (1.18") of snow is typically accumulated. In Grójczyk, during the entire year, snow falls for 35.6 days and aggregates up to 217mm (8.54") of snow.Daylight
The month with the shortest days in Grójczyk is December, with an average of 7h and 48min of daylight.On the first day of December, sunrise is at 07:33 and sunset at 15:34. On the last day of the month, sunrise is at 07:55 and sunset at 15:40 CET.
Sunshine
In Grójczyk, the average sunshine in December is 3.2h.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 estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grójczyk, Poland
- Average high temperature in December: 2.5°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in December: -1°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).
Average pressure in December
Grójczyk, Poland
- Average pressure in December: 1015.5mbar
The month with the highest atmospheric pressure is October (1017.7mbar).
The month with the lowest atmospheric pressure is July (1013.6mbar).
Average wind speed in December
Grójczyk, Poland
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is December (15.4km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in December
Grójczyk, 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
Grójczyk, Poland
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is May (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Grójczyk, Poland
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Grójczyk, Poland
- Average snowfall in December: 30mm
The month with the highest snowfall is January (71mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grójczyk, Poland
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grójczyk, 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 12min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Grójczyk, Poland
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Grójczyk, 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 January, November and December (UV index 1).
Average cloud cover in December
Grójczyk, Poland
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Grójczyk, 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).





