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
Weather in December
Temperature
In the transition to December, Nummela observes a minor drop in the average high-temperature, shifting from a wintry 4.5°C (40.1°F) in November to a still icy 0.8°C (33.4°F). Nummela registers a gentle descent to an average nighttime low of -1.9°C (28.6°F) in December from its daytime highs.Humidity
In Nummela, the average relative humidity in December is 88%.Rainfall
In Nummela, in December, during 13 rainfall days, 50mm (1.97") of precipitation is typically accumulated. Throughout the year, in Nummela, there are 154.9 rainfall days, and 500mm (19.69") of precipitation is accumulated.Snowfall
Months with snowfall in Nummela are January through May, October through December. In December, it is snowing for 16 days. Throughout December, 133mm (5.24") of snow is accumulated. In Nummela, during the entire year, snow falls for 83.6 days and aggregates up to 675mm (26.57") of snow.Daylight
With an average of 5h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 09:01 and sunset at 15:22. On the last day of December, in Nummela, sunrise is at 09:28 and sunset at 15:23 EET.
Sunshine
December has the least sunshine of the year, with an average of 1.7h of sunshine.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 1 in December transforms into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold is it in Nummela in December?
What is the average humidity in December in Nummela?
How much does it rain in Nummela in December?
How many days does it snow in December in Nummela?
What is the month with the shortest days in Nummela?
What is the average length of the day in December in Nummela?
When are sunrise and sunset in December in Nummela?
What is the month with the least sunshine in Nummela?
How many hours of sunshine does Nummela have in December?
What are the months with the lowest UV index in Nummela?
What is the UV index reading in December in Nummela?
Average temperature in December
Nummela, Finland
- Average high temperature in December: 0.8°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-2.1°C).
- Average low temperature in December: -1.9°C
The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in December
Nummela, Finland
- Average pressure in December: 1008.5mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in December
Nummela, Finland
- Average wind speed in December: 20.1km/h
The windiest month (with the highest average wind speed) is December (20.1km/h).
The calmest month (with the lowest average wind speed) is May (13.2km/h).
Average humidity in December
Nummela, Finland
- Average humidity in December: 88%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Nummela, Finland
- Average rainfall in December: 50mm
The wettest months (with the highest rainfall) are July and October (52mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in December
Nummela, Finland
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Nummela, Finland
- Average snowfall in December: 133mm
The month with the highest snowfall is January (157mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Nummela, Finland
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Nummela, Finland
- Average daylight in December: 5h and 5min
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 4min
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 42min).
Average sunshine days in December
Nummela, Finland
- Average sunshine days in December: 5.6 days
The month with the most sunshine days is May (16.5 days).
The month with the least sunshine days is December (5.6 days).
Average UV index in December
Nummela, 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 and December (UV index 1).
Average cloud cover in December
Nummela, Finland
- Average cloud cover in December: 75
The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Nummela, Finland
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
Nummela, Finland
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