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
The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderate 15.7°C (60.3°F) in November to a fresh 11.5°C (52.7°F). In December, the nighttime temperature lowers to an average of 3.9°C (39°F).Humidity
The average relative humidity in December in Riano, Italy, is 76%.Rainfall
In Riano, during December, the rain falls for 10.6 days and regularly aggregates up to 53mm (2.09") of precipitation. In Riano, during the entire year, the rain falls for 147.7 days and collects up to 566mm (22.28") of precipitation.Snowfall
In Riano, Italy, snow does not fall in January, March through December.Daylight
The month with the shortest days in Riano is December, with an average of 9h and 12min of daylight.On the first day of December in Riano, sunrise is at 07:19 and sunset at 16:39. On the last day of the month, sunrise is at 07:38 and sunset at 16:48 CET.
Sunshine
The average sunshine in December in Riano, Italy, is 6.2h.UV index
The average daily maximum UV index in December in Riano is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Riano?
What is the average humidity in December in Riano?
How many days does it rain in December in Riano?
When it does not snow in Riano?
What is the month with the shortest days in Riano?
How many hours of daylight does Riano have in December?
When are sunrise and sunset in December in Riano?
How long on average sun shines in December in Riano?
How high is the UV index in December in Riano?
Average temperature in December
Riano, Italy
- Average high temperature in December: 11.5°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (10.3°C).
- Average low temperature in December: 3.9°C
The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure in December
Riano, Italy
- Average pressure in December: 1018.5mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is April (1014mbar).
Average wind speed in December
Riano, Italy
- Average wind speed in December: 9.3km/h
The windiest month (with the highest average wind speed) is February (10.6km/h).
The calmest months (with the lowest average wind speed) are July and August (7.7km/h).
Average humidity in December
Riano, Italy
- Average humidity in December: 76%
The months with the highest relative humidity are January and November (78%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Riano, Italy
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is November (90mm).
The driest month (with the least rainfall) is August (24mm).
Average rainfall days in December
Riano, Italy
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is April (15.2 days).
The month with the least rainy days is August (8 days).
Average snowfall in December
Riano, Italy
- Average snowfall in December: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Riano, Italy
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Riano, Italy
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in December
Riano, Italy
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is August (21.4 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in December
Riano, Italy
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Riano, Italy
- Average cloud cover in December: 31
The months with the most cloud cover are January and February (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in December
Riano, Italy
- Average visibility in December: 10km
The months with the highest visibility are June, July, August, September, October and December (10km).
The months with the lowest visibility are January, February, March, April, May and November (9km).
