December weather forecastPetas, Finland
December
Weather in December
December, the first month of the winter in Petas, is also an icy month, with an average temperature varying between 0.5°C (32.9°F) and -2.7°C (27.1°F).Temperature
The transition into December involves a small decrease in the average high-temperature, dipping slightly from a wintry 3.9°C (39°F) in November to a still cold 0.5°C (32.9°F). Petas's temperature during December nights registers a minor decrease to an average low of -2.7°C (27.1°F).Humidity
In Petas, Finland, the average relative humidity in December is 90%.Rainfall
In Petas, in December, during 7.8 rainfall days, 26mm (1.02") of precipitation is typically accumulated. In Petas, during the entire year, the rain falls for 120 days and collects up to 353mm (13.9") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, in Petas, it is snowing for 10.8 days. Throughout December, 66mm (2.6") of snow is accumulated. Throughout the year, in Petas, there are 53.9 snowfall days, and 433mm (17.05") of snow is accumulated.Daylight
With an average of 5h and 54min of daylight, December has the shortest days of the year in Petas.On the first day of December in Petas, sunrise is at 08:59 and sunset at 15:20. On the last day of the month, sunrise is at 09:26 and sunset at 15:21 EET.
Sunshine
The month with the least sunshine in Petas is December, with an average of 1.9h of sunshine.UV index
January through March, November 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 ordinary individuals.Note: The daily high UV index of 1 in December translates into this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. When the Sun is at its strongest around midday, find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Petas, Finland
- Average high temperature in December: 0.5°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in December: -2.7°C
The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is January (-6.5°C).
Average pressure in December
Petas, Finland
- Average pressure in December: 1008.6mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).
Average wind speed in December
Petas, Finland
- Average wind speed in December: 16.9km/h
The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest month (with the lowest average wind speed) is July (11.8km/h).
Average humidity in December
Petas, Finland
- Average humidity in December: 90%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (69%).
Average rainfall in December
Petas, Finland
- Average rainfall in December: 26mm
The wettest month (with the highest rainfall) is October (48mm).
The driest month (with the least rainfall) is May (15mm).
Average rainfall days in December
Petas, Finland
- Average rainfall days in December: 7.8 days
The months with the highest number of rainy days are July and August (15.5 days).
The month with the least rainy days is February (3 days).
Average snowfall in December
Petas, Finland
- Average snowfall in December: 66mm
The month with the highest snowfall is January (94mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Petas, Finland
- Average snowfall days in December: 10.8 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Petas, Finland
- Average daylight in December: 5h and 54min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in December: 1h and 54min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in December
Petas, Finland
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is May (21.9 days).
The month with the least sunshine days is November (11.1 days).
Average UV index in December
Petas, Finland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Petas, Finland
- Average cloud cover in December: 75
The months with the most cloud cover are February and December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Petas, Finland
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are February and March (7km).
