December weather forecastPromno, Poland
December
Weather in December
December, the first month of the winter in Promno, is also an icy month, with an average temperature fluctuating between -1°C (30.2°F) and 2.7°C (36.9°F).Temperature
The shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a chilly 7.5°C (45.5°F) to a wintry 2.7°C (36.9°F). The nights of December anticipate a slight dip from daytime high temperatures, settling to an average low-temperature of -1°C (30.2°F).Humidity
In December, the average relative humidity is 88%.Rainfall
In Promno, during December, the rain falls for 11.5 days and regularly aggregates up to 31mm (1.22") of precipitation. In Promno, during the entire year, the rain falls for 130.5 days and collects up to 345mm (13.58") of precipitation.Snowfall
January through May, October through December are months with snowfall in Promno, Poland. In Promno, in December, during 8.8 snowfall days, 53mm (2.09") of snow is typically accumulated. In Promno, Poland, during the entire year, snow falls for 44.2 days and aggregates up to 269mm (10.59") of snow.Daylight
December has the shortest days of the year in Promno, Poland, with an average of 7h and 48min of daylight.On the first day of the month, sunrise is at 07:39 and sunset at 15:41. On the last day of December, sunrise is at 08:01 and sunset at 15:47 CET.
Sunshine
The average sunshine in December in Promno is 3h.UV index
The months with the lowest UV index in Promno, Poland, are November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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
Average temperature in December
Promno, Poland
- Average high temperature in December: 2.7°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (0.5°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 (-3.1°C).
Average pressure in December
Promno, Poland
- Average pressure in December: 1015.6mbar
The month with the highest atmospheric pressure is October (1017.6mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in December
Promno, Poland
- Average wind speed in December: 16.6km/h
The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is August (12km/h).
Average humidity in December
Promno, Poland
- Average humidity in December: 88%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Promno, Poland
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is May (45mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in December
Promno, Poland
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is September (7.2 days).
Average snowfall in December
Promno, Poland
- Average snowfall in December: 53mm
The month with the highest snowfall is January (99mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Promno, Poland
- Average snowfall days in December: 8.8 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Promno, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Promno, Poland
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is September (21.7 days).
The month with the least sunshine days is January (9.8 days).
Average UV index in December
Promno, Poland
- Average UV index in December: 1
The months with the highest UV index are May, 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
Promno, Poland
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Promno, Poland
- Average visibility in December: 8km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).
