December weather forecastGranne, Poland
December
Weather in December
December, the first month of the winter in Granne, is also a wintry month, with an average temperature fluctuating between -1.6°C (29.1°F) and 1.5°C (34.7°F).Temperature
The shift from November to December involves a decrease in the average high-temperature, dropping from a chilly 6.5°C (43.7°F) to a wintry 1.5°C (34.7°F). Throughout December, Granne reports a steady low-temperature average of -1.6°C (29.1°F), slightly lower than its daytime counterpart.Humidity
In December, the average relative humidity in Granne is 89%.Rainfall
In Granne, during December, the rain falls for 10.5 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 126.3 rainfall days, and 347mm (13.66") of precipitation is accumulated.Snowfall
Months with snowfall in Granne are January through April, October through December. In Granne, Poland, in December, during 12.6 snowfall days, 91mm (3.58") of snow is typically accumulated. In Granne, during the entire year, snow falls for 58 days and aggregates up to 448mm (17.64") of snow.Daylight
The month with the shortest days in Granne is December, with an average of 7h and 48min of daylight.On the first day of December in Granne, sunrise is at 07:18 and sunset at 15:19. On the last day of the month, sunrise is at 07:40 and sunset at 15:25 CET.
Sunshine
In December, the average sunshine in Granne is 2.9h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Granne. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, an average UV index of 1 transforms into the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Granne, Poland
- Average high temperature in December: 1.5°C
The warmest months (with the highest average high temperature) are July and August (24.5°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in December: -1.6°C
The months with the highest average low temperature are July and August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).
Average pressure in December
Granne, Poland
- Average pressure in December: 1016.3mbar
The month with the highest atmospheric pressure is October (1018.4mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in December
Granne, 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 (10km/h).
Average humidity in December
Granne, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Granne, Poland
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is May (55mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in December
Granne, Poland
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in December
Granne, Poland
- Average snowfall in December: 91mm
The month with the highest snowfall is January (154mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Granne, Poland
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Granne, Poland
- Average daylight in December: 7h and 48min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in December: 2h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in December
Granne, Poland
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is January (8.8 days).
Average UV index in December
Granne, Poland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Granne, Poland
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Granne, Poland
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).
