Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
With December's onset, the weather reveals a slight temperature decrease, transitioning from a wintry 4.3°C (39.7°F) in November to a still cold 0.8°C (33.4°F). December nights cool to an average low-temperature of -2.2°C (28°F), a marginal decrease from its daytime equivalent.Humidity
In Pernoo, the average relative humidity in December is 87%.Rainfall
In Pernoo, in December, it is raining for 10.4 days, with typically 55mm (2.17") of accumulated precipitation. Throughout the year, there are 158.3 rainfall days, and 571mm (22.48") of precipitation is accumulated.Snowfall
Months with snowfall in Pernoo are January through May, October through December. In Pernoo, in December, snow falls for 15.7 days, with typically accumulated 141mm (5.55") of snow. Throughout the year, in Pernoo, there are 85.1 snowfall days, and 670mm (26.38") of snow is accumulated.Daylight
The month with the shortest days in Pernoo is December, with an average of 5h and 54min of daylight.On the first day of December in Pernoo, Finland, sunrise is at 08:53 and sunset at 15:10. On the last day of the month, sunrise is at 09:20 and sunset at 15:11 EET.
Sunshine
December has the least sunshine of the year, with an average of 1.6h 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 low threat to health from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Pernoo?
What is the average humidity in December in Pernoo?
How many days does it rain in December in Pernoo?
How much does it snow in Pernoo in December?
What is the month with the shortest days in Pernoo?
How many hours of daylight does Pernoo have in December?
When is the sunrise / sunset in December in Pernoo?
What is the month with the least sunshine in Pernoo?
How many hours of sunshine does Pernoo have in December?
When is the lowest UV index in Pernoo?
What is the UV index reading in December in Pernoo?
Average temperature in December
Pernoo, Finland
- Average high temperature in December: 0.8°C
The warmest month (with the highest average high temperature) is July (19.7°C).
The month with the lowest average high temperature is February (-2.7°C).
- Average low temperature in December: -2.2°C
The month with the highest average low temperature is July (15.1°C).
The coldest month (with the lowest average low temperature) is February (-6.3°C).
Average pressure in December
Pernoo, Finland
- Average pressure in December: 1008.9mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).
Average wind speed in December
Pernoo, Finland
- Average wind speed in December: 23.7km/h
The windiest month (with the highest average wind speed) is December (23.7km/h).
The calmest month (with the lowest average wind speed) is July (15.5km/h).
Average humidity in December
Pernoo, Finland
- Average humidity in December: 87%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (73%).
Average rainfall in December
Pernoo, Finland
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is August (67mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in December
Pernoo, Finland
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is October (17.6 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in December
Pernoo, Finland
- Average snowfall in December: 141mm
The month with the highest snowfall is January (148mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Pernoo, Finland
- Average snowfall days in December: 15.7 days
The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Pernoo, Finland
- Average daylight in December: 5h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in December: 1h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).
Average sunshine days in December
Pernoo, Finland
- Average sunshine days in December: 6.4 days
The month with the most sunshine days is May (15.2 days).
The month with the least sunshine days is December (6.4 days).
Average UV index in December
Pernoo, 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
Pernoo, Finland
- Average cloud cover in December: 77
The months with the most cloud cover are January and December (Cloud cover 77).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Pernoo, Finland
- Average visibility in December: 8km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
