December weather forecastGrobniki, Poland
December weather for Grobniki, Poland: In Grobniki, in December, snow falls for 8 days, with typically accumulated 59mm (2.32") of snow. In Grobniki, in December, during 8 snowfall days, 59mm (2.32") of snow is typically accumulated.
December
Weather in December
December, the first month of the winter in Grobniki, is still a cold month, with an average temperature fluctuating between -1°C (30.2°F) and 2.8°C (37°F).Temperature
Observing a mild shift, the average high-temperature during December reduces from November's chilly 8.6°C (47.5°F) to an icy 2.8°C (37°F). During the December nights, Grobniki's temperature maintains an average close to the daytime highs, settling at a freezing cold -1°C (30.2°F).Humidity
In Grobniki, the average relative humidity in December is 83%.Rainfall
In December, in Grobniki, the rain falls for 10 days. Throughout December, 29mm (1.14") of precipitation is accumulated. In Grobniki, during the entire year, the rain falls for 151.3 days and collects up to 430mm (16.93") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Grobniki, in December, during 8 snowfall days, 59mm (2.32") of snow is typically accumulated. Throughout the year, there are 38.3 snowfall days, and 271mm (10.67") of snow is accumulated.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of December in Grobniki, Poland, sunrise is at 07:26 and sunset at 15:48. On the last day of the month, sunrise is at 07:47 and sunset at 15:55 CET.
Sunshine
In Grobniki, the average sunshine in December is 4.3h.UV index
December is the month with the lowest UV index in Grobniki, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 1 during December translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grobniki, Poland
- Average high temperature in December: 2.8°C
The warmest month (with the highest average high temperature) is August (25.6°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in December: -1°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-3.2°C).
Average pressure in December
Grobniki, Poland
- Average pressure in December: 1018.2mbar
The month with the highest atmospheric pressure is October (1018.6mbar).
The month with the lowest atmospheric pressure is July (1014.6mbar).
Average wind speed in December
Grobniki, Poland
- Average wind speed in December: 14.2km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in December
Grobniki, Poland
- Average humidity in December: 83%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Grobniki, Poland
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is July (60mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in December
Grobniki, Poland
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is June (18.1 days).
The months with the least rainy days are January and February (8.7 days).
Average snowfall in December
Grobniki, Poland
- Average snowfall in December: 59mm
The month with the highest snowfall is January (91mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grobniki, Poland
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grobniki, Poland
- Average daylight in December: 8h and 6min
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 6min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Grobniki, Poland
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Grobniki, Poland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Grobniki, Poland
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Grobniki, Poland
- Average visibility in December: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January and February (8km).
