December weather forecastJaslo, Poland

December

Weather in December

December, the first month of the winter in Jaslo, is also an icy month, with an average temperature varying between -2.6°C (27.3°F) and 1.3°C (34.3°F).

Temperature

December brings a drop in Jaslo's average high-temperature, falling from a chilly 7.3°C (45.1°F) in November to an icy 1.3°C (34.3°F). Jaslo experiences a minimal drop from daytime high temperatures, recording an average low-temperature of -2.6°C (27.3°F) throughout December.

Humidity

The average relative humidity in December in Jaslo is 88%.

Rainfall

In Jaslo, Poland, in December, it is raining for 11.2 days, with typically 46mm (1.81") of accumulated precipitation. In Jaslo, during the entire year, the rain falls for 155.5 days and collects up to 507mm (19.96") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Jaslo, Poland. In Jaslo, during December, snow falls for 12.2 days and regularly aggregates up to 155mm (6.1") of snow. In Jaslo, Poland, during the entire year, snow falls for 58.2 days and aggregates up to 572mm (22.52") of snow.

Daylight

The month with the shortest days in Jaslo is December, with an average of 8h and 12min of daylight.
On the first day of December, sunrise is at 07:10 and sunset at 15:36. On the last day of the month, sunrise is at 07:31 and sunset at 15:43 CET.

Sunshine

In December, the average sunshine is 3.8h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum high UV index of 1 in December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. 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. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

The average high-temperature, in December, in Jaslo, is 1.3°C (34.3°F), while the average low-temperature is -2.6°C (27.3°F).

In Jaslo, Poland, the average relative humidity in December is 88%.

In December, in Jaslo, the rain falls for 11.2 days. Throughout December, 46mm (1.81") of precipitation is accumulated.

In December, in Jaslo, it is snowing for 12.2 days. Throughout December, 155mm (6.1") of snow is accumulated.

With an average of 8h and 12min of daylight, December has the shortest days of the year.

In December, the average day length in Jaslo is 8h and 13min.

In December, on the first day of the month, sunrise is at 07:10 and sunset at 15:36. On the last day of the month, in Jaslo, sunrise is at 07:31 and sunset at 15:43 CET.

In Jaslo, Poland, the average sunshine duration in December is 3.8h.

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

In December, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
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
Jaslo, Poland

  • Average high temperature in December: 1.3°C

The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (-0.8°C).

  • Average low temperature in December: -2.6°C

The months with the highest average low temperature are July and August (13.1°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).

Average pressure in December
Jaslo, Poland

  • Average pressure in December: 1018.9mbar

The month with the highest atmospheric pressure is October (1019.1mbar).
The months with the lowest atmospheric pressure are June and July (1014.4mbar).

Average wind speed in December
Jaslo, Poland

  • Average wind speed in December: 13.1km/h

The windiest month (with the highest average wind speed) is December (13.1km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).

Average humidity in December
Jaslo, Poland

  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (72%).

Average rainfall in December
Jaslo, Poland

  • Average rainfall in December: 46mm

The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is March (26mm).

Average rainfall days in December
Jaslo, Poland

  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (9 days).

Average snowfall in December
Jaslo, Poland

  • Average snowfall in December: 155mm

The month with the highest snowfall is January (159mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Jaslo, Poland

  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Jaslo, Poland

  • Average daylight in December: 8h and 12min

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 12min).

  • Average sunshine in December: 3h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).

Average sunshine days in December
Jaslo, Poland

  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is August (18.4 days).
The month with the least sunshine days is January (8.1 days).

Average UV index in December
Jaslo, 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 and December (UV index 1).

Average cloud cover in December
Jaslo, Poland

  • Average cloud cover in December: 64

The months with the most cloud cover are January and February (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Jaslo, Poland

  • Average visibility in December: 8km

The months with the highest visibility are March, April, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).