December weather forecastPostronna, Poland
December
Weather in December
December, the first month of the winter in Postronna, is still a cold month, with an average temperature ranging between min -1.2°C (29.8°F) and max 2.3°C (36.1°F).Temperature
December brings a minor decrease, with the average high-temperature reducing from a chilly 8°C (46.4°F) in November to an icy 2.3°C (36.1°F). In December, Postronna's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of -1.2°C (29.8°F).Humidity
In Postronna, the average relative humidity in December is 86%.Rainfall
In Postronna, in December, during 10.1 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Postronna, during the entire year, the rain falls for 143.2 days and collects up to 427mm (16.81") of precipitation.Snowfall
Months with snowfall in Postronna are January through April, October through December. In Postronna, Poland, in December, during 10.4 snowfall days, 78mm (3.07") of snow is typically accumulated. In Postronna, Poland, during the entire year, snow falls for 46.1 days and aggregates up to 356mm (14.02") of snow.Daylight
December has the shortest days of the year in Postronna, with an average of 8h and 6min of daylight.On the first day of December, sunrise is at 07:13 and sunset at 15:32. On the last day of the month, sunrise is at 07:35 and sunset at 15:38 CET.
Sunshine
In December, the average sunshine is 3.5h.UV index
The months with the lowest UV index in Postronna, Poland, are November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Postronna, Poland
- Average high temperature in December: 2.3°C
The warmest month (with the highest average high temperature) is August (25.9°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in December: -1.2°C
The months with the highest average low temperature are July and August (14.9°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).
Average pressure in December
Postronna, Poland
- Average pressure in December: 1018mbar
The month with the highest atmospheric pressure is October (1019mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).
Average wind speed in December
Postronna, Poland
- Average wind speed in December: 12.2km/h
The windiest month (with the highest average wind speed) is December (12.2km/h).
The calmest month (with the lowest average wind speed) is August (9km/h).
Average humidity in December
Postronna, Poland
- Average humidity in December: 86%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Postronna, Poland
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is July (62mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in December
Postronna, Poland
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Postronna, Poland
- Average snowfall in December: 78mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Postronna, Poland
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is January (14.3 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
Postronna, Poland
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 3h and 30min
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 54min).
Average sunshine days in December
Postronna, Poland
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in December
Postronna, 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 November and December (UV index 1).
Average cloud cover in December
Postronna, Poland
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Postronna, Poland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
