December weather forecastGroty, Poland

December

Weather in December

The first month of the winter, December, is still a cold month in Groty, Poland, with an average temperature ranging between max 2.3°C (36.1°F) and min -1.3°C (29.7°F).

Temperature

The onset of December is marked by a minor decrease in temperature, transitioning from a chilly 7.2°C (45°F) in November to an icy 2.3°C (36.1°F). A modest nighttime temperature average of -1.3°C (29.7°F) characterizes December.

Humidity

In Groty, the average relative humidity in December is 87%.

Rainfall

In Groty, during December, the rain falls for 11.3 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, in Groty, there are 141.3 rainfall days, and 353mm (13.9") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Groty, Poland. In Groty, during December, snow falls for 9.9 days and regularly aggregates up to 63mm (2.48") of snow. In Groty, during the entire year, snow falls for 48.2 days and aggregates up to 369mm (14.53") of snow.

Daylight

With an average of 7h and 48min of daylight, December has the shortest days of the year in Groty.
On the first day of December in Groty, sunrise is at 07:23 and sunset at 15:27. On the last day of the month, sunrise is at 07:45 and sunset at 15:33 CET.

Sunshine

The average sunshine in December in Groty is 3.3h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 1 during December leads to these instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

Groty in December has an average high-temperature of 2.3°C (36.1°F) and an average low-temperature of -1.3°C (29.7°F).

The average relative humidity in December in Groty, Poland, is 87%.

In Groty, Poland, in December, during 11.3 rainfall days, 32mm (1.26") of precipitation is typically accumulated.

In December, it is snowing for 9.9 days. Throughout December, 63mm (2.48") of snow is accumulated.

The month with the shortest days is December, with an average of 7h and 48min of daylight.

In December, the average day length in Groty, Poland, is 7h and 48min.

In December, on the first day of the month, sunrise is at 07:23 and sunset at 15:27. On the last day of the month, in Groty, sunrise is at 07:45 and sunset at 15:33 CET.

In Groty, Poland, the average sunshine duration in December is 3.3h.

The months with the lowest UV index in Groty, Poland, are January and December, with an average maximum UV index of 1.

In Groty, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Groty, Poland

  • Average high temperature in December: 2.3°C

The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (-0.4°C).

  • Average low temperature in December: -1.3°C

The month with the highest average low temperature is August (15.2°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average pressure in December
Groty, Poland

  • Average pressure in December: 1016.1mbar

The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).

Average wind speed in December
Groty, 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 (10.3km/h).

Average humidity in December
Groty, Poland

  • Average humidity in December: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).

Average rainfall in December
Groty, Poland

  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is May (52mm).
The driest months (with the least rainfall) are April and November (21mm).

Average rainfall days in December
Groty, Poland

  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Groty, Poland

  • Average snowfall in December: 63mm

The month with the highest snowfall is January (133mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Groty, Poland

  • Average snowfall days in December: 9.9 days

The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Groty, 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: 3h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in December
Groty, Poland

  • Average sunshine days in December: 10.6 days

The month with the most sunshine days is August (18.6 days).
The month with the least sunshine days is February (9.3 days).

Average UV index in December
Groty, 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
Groty, Poland

  • Average cloud cover in December: 68

The months with the most cloud cover are January and February (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Groty, Poland

  • Average visibility in December: 8km

The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (7km).