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
Iru experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a cold 4.5°C (40.1°F) in November to a still wintry 1°C (33.8°F). In December, Iru's nights cool slightly to a consistent average temperature of -2.3°C (27.9°F).Humidity
In December, the average relative humidity in Iru is 89%.Rainfall
In December, in Iru, the rain falls for 14.1 days. Throughout December, 50mm (1.97") of precipitation is accumulated. In Iru, during the entire year, the rain falls for 176.6 days and collects up to 578mm (22.76") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, in Iru, it is snowing for 17.8 days. Throughout December, 149mm (5.87") of snow is accumulated. Throughout the year, in Iru, there are 90.7 snowfall days, and 792mm (31.18") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 6h and 12min of daylight.On the first day of December, sunrise is at 08:51 and sunset at 15:27. On the last day of the month, sunrise is at 09:17 and sunset at 15:29 EET.
Sunshine
The month with the least sunshine is December, with an average of 1.7h of sunshine.UV index
The months with the lowest UV index in Iru are January through March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Iru in December?
What is the average humidity in December in Iru?
How much does it rain in Iru in December?
How many days does it snow in December in Iru?
What is the month with the shortest days in Iru?
What is the average length of the day in December in Iru?
What time are sunrise and sunset in December in Iru?
What is the month with the least sunshine in Iru?
How many hours of sunshine does Iru have in December?
When is the lowest UV index in Iru?
What is the UV index reading in December in Iru?
Average temperature in December
Iru, Estonia
- Average high temperature in December: 1°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in December: -2.3°C
The month with the highest average low temperature is July (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-5.3°C).
Average pressure in December
Iru, Estonia
- Average pressure in December: 1009.1mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in December
Iru, Estonia
- Average wind speed in December: 19.6km/h
The windiest month (with the highest average wind speed) is December (19.6km/h).
The calmest month (with the lowest average wind speed) is May (13.2km/h).
Average humidity in December
Iru, Estonia
- Average humidity in December: 89%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Iru, Estonia
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is July (69mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in December
Iru, Estonia
- Average rainfall days in December: 14.1 days
The months with the highest number of rainy days are July and August (19.6 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Iru, Estonia
- Average snowfall in December: 149mm
The month with the highest snowfall is February (178mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Iru, Estonia
- Average snowfall days in December: 17.8 days
The month with the highest number of snowfall days is January (20.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Iru, Estonia
- Average daylight in December: 6h and 1min
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 12min).
- Average sunshine in December: 1h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in December
Iru, Estonia
- Average sunshine days in December: 3.9 days
The month with the most sunshine days is May (13.6 days).
The month with the least sunshine days is December (3.9 days).
Average UV index in December
Iru, Estonia
- 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
Iru, Estonia
- Average cloud cover in December: 78
The month with the most cloud cover is December (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Iru, Estonia
- 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).
