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
With the arrival of December, Järni notices a mild change in the average high-temperature, sliding from November's icy 3.2°C (37.8°F) to a subzero cold -0.5°C (31.1°F). Järni observes an average low-temperature of -3.7°C (25.3°F) during the slightly cooler nights of December.Humidity
In Järni, the average relative humidity in December is 92%.Rainfall
In Järni, during December, the rain falls for 7.9 days and regularly aggregates up to 36mm (1.42") of precipitation. Throughout the year, in Järni, there are 149.2 rainfall days, and 459mm (18.07") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Järni, in December, during 17.4 snowfall days, 172mm (6.77") of snow is typically accumulated. In Järni, during the entire year, snow falls for 92.1 days and aggregates up to 819mm (32.24") of snow.Daylight
The month with the shortest days in Järni is December, with an average of 6h and 18min of daylight.On the first day of the month, sunrise is at 08:44 and sunset at 15:23. On the last day of December, sunrise is at 09:10 and sunset at 15:25 EET.
Sunshine
With an average of 1.5h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is it in Järni in December?
What is the average humidity in December in Järni?
How much does it rain in Järni in December?
How much does it snow in Järni in December?
What is the month with the shortest days in Järni?
How many hours of daylight does Järni have in December?
What time are sunrise and sunset in December in Järni?
What is the month with the least sunshine in Järni?
How long on average sun shines in December in Järni?
What is the month with the lowest UV index in Järni?
What is the UV index reading in December in Järni?
Average temperature in December
Järni, Estonia
- Average high temperature in December: -0.5°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (-3.3°C).
- Average low temperature in December: -3.7°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).
Average pressure in December
Järni, Estonia
- Average pressure in December: 1009.8mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.8mbar).
Average wind speed in December
Järni, Estonia
- Average wind speed in December: 14.1km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is May (10.6km/h).
Average humidity in December
Järni, Estonia
- Average humidity in December: 92%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Järni, Estonia
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is July (55mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Järni, Estonia
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Järni, Estonia
- Average snowfall in December: 172mm
The month with the highest snowfall is February (179mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Järni, Estonia
- Average snowfall days in December: 17.4 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Järni, Estonia
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 1h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in December
Järni, Estonia
- Average sunshine days in December: 9 days
The month with the most sunshine days is May (15.4 days).
The month with the least sunshine days is December (9 days).
Average UV index in December
Järni, Estonia
- Average UV index in December: 1
The months with the highest UV index are June and 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
Järni, Estonia
- Average cloud cover in December: 82
The month with the most cloud cover is December (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Järni, Estonia
- Average visibility in December: 7km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (6km).
Järni, Estonia
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