December weather forecastJanów Podlaski, Poland
December
Weather in December
December, the first month of the winter in Janów Podlaski, is also a wintry month, with an average temperature fluctuating between -1.7°C (28.9°F) and 1.2°C (34.2°F).Temperature
December brings a decrease in the average high-temperature, shifting from a frosty 6.5°C (43.7°F) in November to an icy 1.2°C (34.2°F). Janów Podlaski experiences a subtle drop in temperature during the December nights, recording an average of -1.7°C (28.9°F).Humidity
In Janów Podlaski, the average relative humidity in December is 89%.Rainfall
In December, in Janów Podlaski, the rain falls for 10.2 days. Throughout December, 34mm (1.34") of precipitation is accumulated. In Janów Podlaski, during the entire year, the rain falls for 144.9 days and collects up to 439mm (17.28") of precipitation.Snowfall
January through April, October through December are months with snowfall in Janów Podlaski. In Janów Podlaski, during December, snow falls for 13 days and regularly aggregates up to 89mm (3.5") of snow. Throughout the year, there are 61.8 snowfall days, and 481mm (18.94") of snow is accumulated.Daylight
December has the shortest days of the year in Janów Podlaski, Poland, with an average of 7h and 48min of daylight.On the first day of the month, sunrise is at 07:14 and sunset at 15:18. On the last day of December, in Janów Podlaski, sunrise is at 07:36 and sunset at 15:24 CET.
Sunshine
In Janów Podlaski, the average sunshine in December is 2.8h.UV index
The months with the lowest UV index in Janów Podlaski are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, a regular UV index of 1 translates into these guidelines:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. 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. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Janów Podlaski, Poland
- Average high temperature in December: 1.2°C
The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in December: -1.7°C
The months with the highest average low temperature are July and August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in December
Janów Podlaski, Poland
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is October (1018.6mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in December
Janów Podlaski, Poland
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in December
Janów Podlaski, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Janów Podlaski, Poland
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in December
Janów Podlaski, Poland
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Janów Podlaski, Poland
- Average snowfall in December: 89mm
The month with the highest snowfall is January (164mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Janów Podlaski, Poland
- Average snowfall days in December: 13 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Janów Podlaski, 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: 2h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).
Average sunshine days in December
Janów Podlaski, Poland
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is January (7.2 days).
Average UV index in December
Janów Podlaski, 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
Janów Podlaski, Poland
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Janów Podlaski, Poland
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
