December weather forecastSłomniki, Poland
December
Weather in December
December, the first month of the winter in Słomniki, is still a cold month, with an average temperature varying between 2.6°C (36.7°F) and -1.5°C (29.3°F).Temperature
As November transitions to December, the average high-temperature falls from a frosty 8.6°C (47.5°F) to a wintry 2.6°C (36.7°F). December nights document an average temperature reading of -1.5°C (29.3°F).Humidity
The average relative humidity in December is 83%.Rainfall
In December, the rain falls for 6 days. Throughout December, 16mm (0.63") of precipitation is accumulated. In Słomniki, during the entire year, the rain falls for 123.2 days and collects up to 368mm (14.49") of precipitation.Snowfall
Months with snowfall in Słomniki are January through May, October through December. In December, it is snowing for 5.5 days. Throughout December, 35mm (1.38") of snow is accumulated. In Słomniki, during the entire year, snow falls for 24.6 days and aggregates up to 153mm (6.02") of snow.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year in Słomniki.On the first day of the month, sunrise is at 07:17 and sunset at 15:39. On the last day of December, in Słomniki, sunrise is at 07:39 and sunset at 15:46 CET.
Sunshine
In December, the average sunshine in Słomniki is 4.3h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 in December translates into these instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Słomniki, Poland
- Average high temperature in December: 2.6°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (0.4°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in December
Słomniki, Poland
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The months with the lowest atmospheric pressure are June and July (1014.5mbar).
Average wind speed in December
Słomniki, Poland
- Average wind speed in December: 12.5km/h
The windiest month (with the highest average wind speed) is March (12.9km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in December
Słomniki, 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 (69%).
Average rainfall in December
Słomniki, Poland
- Average rainfall in December: 16mm
The wettest month (with the highest rainfall) is May (65mm).
The driest months (with the least rainfall) are January and March (14mm).
Average rainfall days in December
Słomniki, Poland
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in December
Słomniki, Poland
- Average snowfall in December: 35mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Słomniki, Poland
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Słomniki, 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 30min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in December
Słomniki, Poland
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in December
Słomniki, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Słomniki, Poland
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Słomniki, Poland
- Average visibility in December: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and February (8km).
