Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December brings a minor shift in the average high-temperature, adjusting from a chilly 7°C (44.6°F) in November to a cold 2.3°C (36.1°F). Ilawa's average low temperature, barely cooler than the daytime high, steadies at a subzero cold -1.1°C (30°F) during December.Humidity
In December, the average relative humidity in Ilawa is 88%.Rainfall
In Ilawa, in December, it is raining for 10.5 days, with typically 25mm (0.98") of accumulated precipitation. In Ilawa, during the entire year, the rain falls for 124.3 days and collects up to 298mm (11.73") of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Ilawa, in December, snow falls for 6.7 days, with typically accumulated 37mm (1.46") of snow. Throughout the year, there are 35.9 snowfall days, and 206mm (8.11") of snow is accumulated.Daylight
With an average of 7h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:35 and sunset at 15:26. On the last day of December, in Ilawa, Poland, sunrise is at 07:58 and sunset at 15:31 CET.
Sunshine
The average sunshine in December in Ilawa is 3.3h.UV index
The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the UV index of 2 transforms into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Ilawa?
What is the average humidity in December in Ilawa?
How much does it rain in Ilawa in December?
How much does it snow in Ilawa in December?
What is the month with the shortest days in Ilawa?
What is the average length of the day in December in Ilawa?
When is the sunrise / sunset in December in Ilawa?
How long on average sun shines in December in Ilawa?
What is the UV index intensity in December in Ilawa?
Average temperature in December
Ilawa, Poland
- Average high temperature in December: 2.3°C
The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (-0.2°C).
- Average low temperature in December: -1.1°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).
Average pressure in December
Ilawa, Poland
- Average pressure in December: 1014.2mbar
The month with the highest atmospheric pressure is October (1017.1mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).
Average wind speed in December
Ilawa, Poland
- Average wind speed in December: 14.2km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in December
Ilawa, 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 (68%).
Average rainfall in December
Ilawa, Poland
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is July (40mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in December
Ilawa, Poland
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Ilawa, Poland
- Average snowfall in December: 37mm
The month with the highest snowfall is January (74mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Ilawa, Poland
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ilawa, Poland
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Ilawa, Poland
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is February (13 days).
Average UV index in December
Ilawa, Poland
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in December
Ilawa, Poland
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Ilawa, Poland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).
