December weather forecastGrale, Poland
December
Weather in December
December, the first month of the winter in Grale, is still a cold month, with an average temperature fluctuating between 1.5°C (34.7°F) and -1.8°C (28.8°F).Temperature
December sees a slight reduction in average high-temperature, with a shift from a frosty 6.3°C (43.3°F) in November to a wintry 1.5°C (34.7°F). The December average low temperature, marginally lower than the daytime high, records at a freezing cold -1.8°C (28.8°F).Humidity
In Grale, Poland, the average relative humidity in December is 89%.Rainfall
In December, in Grale, the rain falls for 10.5 days. Throughout December, 28mm (1.1") of precipitation is accumulated. In Grale, during the entire year, the rain falls for 148.8 days and collects up to 426mm (16.77") of precipitation.Snowfall
Months with snowfall in Grale are January through May, October through December. In Grale, in December, during 9.8 snowfall days, 64mm (2.52") of snow is typically accumulated. In Grale, during the entire year, snow falls for 40.6 days and aggregates up to 274mm (10.79") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 36min of daylight.On the first day of the month, sunrise is at 07:25 and sunset at 15:19. On the last day of December, sunrise is at 07:48 and sunset at 15:25 CET.
Sunshine
The average sunshine in December in Grale is 3h.UV index
January, November 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 minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Stay sun-safe with clothing that is both closely woven and worn loosely. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grale, Poland
- Average high temperature in December: 1.5°C
The warmest months (with the highest average high temperature) are July and August (24.3°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in December: -1.8°C
The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in December
Grale, Poland
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in December
Grale, Poland
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is December (13.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in December
Grale, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and August (69%).
Average rainfall in December
Grale, Poland
- Average rainfall in December: 28mm
The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in December
Grale, Poland
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Grale, Poland
- Average snowfall in December: 64mm
The month with the highest snowfall is January (79mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grale, Poland
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grale, Poland
- Average daylight in December: 7h and 36min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 30min).
Average sunshine days in December
Grale, Poland
- Average sunshine days in December: 12.5 days
The months with the most sunshine days are March and October (16.3 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in December
Grale, 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
Grale, Poland
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Grale, Poland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
