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
Weather in December
Temperature
December reveals a small adjustment in temperature, transitioning from an average high of a chilly 6.5°C (43.7°F) in November to a wintry 1.6°C (34.9°F). A modest decline from daytime high temperatures in Gromadzyn, Poland, is noticed in December, marking the average low at a subzero cold -1.6°C (29.1°F).Humidity
In December, the average relative humidity in Gromadzyn is 89%.Rainfall
In Gromadzyn, Poland, during December, the rain falls for 9.4 days and regularly aggregates up to 24mm (0.94") of precipitation. In Gromadzyn, during the entire year, the rain falls for 135.2 days and collects up to 349mm (13.74") of precipitation.Snowfall
January through May, October through December are months with snowfall in Gromadzyn. In Gromadzyn, during December, snow falls for 8.7 days and regularly aggregates up to 51mm (2.01") of snow. In Gromadzyn, during the entire year, snow falls for 43.2 days and aggregates up to 291mm (11.46") of snow.Daylight
The month with the shortest days is December, with an average of 7h and 42min of daylight.On the first day of the month, sunrise is at 07:27 and sunset at 15:27. On the last day of December, in Gromadzyn, Poland, sunrise is at 07:49 and sunset at 15:32 CET.
Sunshine
In Gromadzyn, the average sunshine in December is 3h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Gromadzyn. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 1 in December translates into these instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Gromadzyn?
What is the average humidity in December in Gromadzyn?
How much does it rain in Gromadzyn in December?
How much does it snow in Gromadzyn in December?
What is the month with the shortest days in Gromadzyn?
What is the average length of the day in December in Gromadzyn?
When is the sunrise / sunset in December in Gromadzyn?
How long on average sun shines in December in Gromadzyn?
When is the lowest UV index in Gromadzyn?
How high is the UV index in December in Gromadzyn?
Average temperature in December
Gromadzyn, Poland
- Average high temperature in December: 1.6°C
The warmest months (with the highest average high temperature) are July and August (24.2°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in December: -1.6°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 (-4.1°C).
Average pressure in December
Gromadzyn, Poland
- Average pressure in December: 1015.4mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).
Average wind speed in December
Gromadzyn, Poland
- Average wind speed in December: 13.4km/h
The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in December
Gromadzyn, 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
Gromadzyn, Poland
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is May (46mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in December
Gromadzyn, Poland
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Gromadzyn, Poland
- Average snowfall in December: 51mm
The month with the highest snowfall is January (108mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Gromadzyn, Poland
- Average snowfall days in December: 8.7 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gromadzyn, Poland
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Gromadzyn, Poland
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in December
Gromadzyn, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Gromadzyn, Poland
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Gromadzyn, 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 (6km).
Gromadzyn, Poland
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