December weather forecastUstaszewo, Poland
December
Weather in December
December, the first month of the winter in Ustaszewo, is also an icy month, with an average temperature varying between -1°C (30.2°F) and 2.7°C (36.9°F).Temperature
The transition into December involves a small decrease in the average high-temperature, dipping slightly from a chilly 7.5°C (45.5°F) in November to an icy 2.7°C (36.9°F). Ustaszewo's average low temperature, barely cooler than the daytime high, steadies at a freezing cold -1°C (30.2°F) during December.Humidity
In December, the average relative humidity is 88%.Rainfall
In Ustaszewo, during December, the rain falls for 11.5 days and regularly aggregates up to 31mm (1.22") of precipitation. In Ustaszewo, during the entire year, the rain falls for 130.5 days and collects up to 345mm (13.58") of precipitation.Snowfall
January through May, October through December are months with snowfall in Ustaszewo. In Ustaszewo, in December, snow falls for 8.8 days, with typically accumulated 53mm (2.09") of snow. Throughout the year, in Ustaszewo, Poland, there are 44.2 snowfall days, and 269mm (10.59") of snow is accumulated.Daylight
With an average of 7h and 42min of daylight, December has the shortest days of the year in Ustaszewo.On the first day of December, sunrise is at 07:39 and sunset at 15:37. On the last day of the month, sunrise is at 08:01 and sunset at 15:43 CET.
Sunshine
In December, the average sunshine is 3h.UV index
The months with the lowest UV index in Ustaszewo are November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ustaszewo, Poland
- Average high temperature in December: 2.7°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 (0.5°C).
- Average low temperature in December: -1°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).
Average pressure in December
Ustaszewo, Poland
- Average pressure in December: 1015.6mbar
The month with the highest atmospheric pressure is October (1017.6mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in December
Ustaszewo, Poland
- Average wind speed in December: 16.6km/h
The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is August (12km/h).
Average humidity in December
Ustaszewo, 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 (66%).
Average rainfall in December
Ustaszewo, Poland
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is May (45mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in December
Ustaszewo, Poland
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is September (7.2 days).
Average snowfall in December
Ustaszewo, Poland
- Average snowfall in December: 53mm
The month with the highest snowfall is January (99mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Ustaszewo, Poland
- Average snowfall days in December: 8.8 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ustaszewo, Poland
- Average daylight in December: 7h and 42min
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 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Ustaszewo, Poland
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is September (21.7 days).
The month with the least sunshine days is January (9.8 days).
Average UV index in December
Ustaszewo, Poland
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Ustaszewo, Poland
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Ustaszewo, Poland
- Average visibility in December: 8km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).
