December weather forecastNellim, Finland
December
Weather in December
December brings unambiguous winter weather to Nellim. Long nights dominate the season with extended periods of darkness and minimal daylight hours. The reduced daylight further lowers temperatures, making December amongst the coldest months of the year. Snowfall rates are high, adding to the already substantial accumulation from November. Consequently, December has the highest average snowfall of the year with 155mm (6.1"), creating a thick blanket of snow.Temperature
Entering December, the average high-temperature is recorded at a still freezing cold -5.3°C (22.5°F), exhibiting a minimal shift from November's -2.5°C (27.5°F). Nellim notes a consistent average low-temperature of -10.1°C (13.8°F) during December nights.Humidity
In Nellim, the average relative humidity in December is 92%.Rainfall
In Nellim, during December, the rain falls for 2.5 days and regularly aggregates up to 27mm (1.06") of precipitation. In Nellim, during the entire year, the rain falls for 115.3 days and collects up to 395mm (15.55") of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Nellim, during December, snow falls for 20.2 days and regularly aggregates up to 155mm (6.1") of snow. Throughout the year, there are 130.8 snowfall days, and 1094mm (43.07") of snow is accumulated.Daylight
The average length of the day in December is 0h and 3min.Sunshine
The month with the least sunshine is December, with an average of 0.3h of sunshine.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Nellim, Finland
- Average high temperature in December: -5.3°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (-8.5°C).
- Average low temperature in December: -10.1°C
The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is January (-14°C).
Average pressure in December
Nellim, Finland
- Average pressure in December: 1004.2mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1004.2mbar).
Average wind speed in December
Nellim, Finland
- Average wind speed in December: 15.7km/h
The windiest month (with the highest average wind speed) is March (16.2km/h).
The calmest month (with the lowest average wind speed) is August (12.6km/h).
Average humidity in December
Nellim, Finland
- Average humidity in December: 92%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is June (67%).
Average rainfall in December
Nellim, Finland
- Average rainfall in December: 27mm
The wettest months (with the highest rainfall) are June and July (48mm).
The driest month (with the least rainfall) is February (21mm).
Average rainfall days in December
Nellim, Finland
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in December
Nellim, Finland
- Average snowfall in December: 155mm
The month with the highest snowfall is January (166mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Nellim, Finland
- Average snowfall days in December: 20.2 days
The month with the highest number of snowfall days is December (20.2 days).
The month with the least snowfall days is July (0 days).
Average daylight in December /
Average sunshine in December
Nellim, Finland
- Average daylight in December: 0h and 0min
The month with the longest days is August (Average daylight: 17h and 42min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in December: 0h and 18min
The month with the most sunshine is August (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 0h and 18min).
Average sunshine days in December
Nellim, Finland
- Average sunshine days in December: 11 days
The month with the most sunshine days is January (13.8 days).
The month with the least sunshine days is April (8.1 days).
Average UV index in December
Nellim, Finland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in December
Nellim, Finland
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 56).
Average visibility in December
Nellim, Finland
- Average visibility in December: 7km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, April and December (7km).
