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
December sees a slight reduction in average high-temperature, with a shift from an enjoyable 16.5°C (61.7°F) in November to a fresh 12.1°C (53.8°F). During December, Grassano consistently records a temperature low averaging a cold 5.5°C (41.9°F).Humidity
In December, the average relative humidity in Grassano, Italy, is 76%.Rainfall
In December, the rain falls for 10.5 days. Throughout December, 29mm (1.14") of precipitation is accumulated. In Grassano, during the entire year, the rain falls for 155.5 days and collects up to 529mm (20.83") of precipitation.Snowfall
January through April, November and December are months with snowfall in Grassano. In Grassano, Italy, in December, snow falls for 1.1 days, with typically accumulated 8mm (0.31") of snow. In Grassano, during the entire year, snow falls for 6.8 days and aggregates up to 79mm (3.11") of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December in Grassano, sunrise is at 06:59 and sunset at 16:28. On the last day of the month, sunrise is at 07:18 and sunset at 16:37 CET.
Sunshine
In Grassano, Italy, the average sunshine in December is 6.2h.UV index
December is the month with the lowest UV index in Grassano, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Grassano?
What is the average humidity in December in Grassano?
How much does it rain in Grassano in December?
How much does it snow in Grassano in December?
What is the month with the shortest days in Grassano?
What is the average length of the day in December in Grassano?
When is the sunrise / sunset in December in Grassano?
How long on average sun shines in December in Grassano?
When is the lowest UV index in Grassano?
What is the UV index reading in December in Grassano?
Average temperature in December
Grassano, Italy
- Average high temperature in December: 12.1°C
The warmest month (with the highest average high temperature) is August (31.7°C).
The month with the lowest average high temperature is January (10.7°C).
- Average low temperature in December: 5.5°C
The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is January (4°C).
Average pressure in December
Grassano, Italy
- Average pressure in December: 1017.8mbar
The month with the highest atmospheric pressure is December (1017.8mbar).
The month with the lowest atmospheric pressure is July (1012.9mbar).
Average wind speed in December
Grassano, Italy
- Average wind speed in December: 13km/h
The windiest month (with the highest average wind speed) is February (14.7km/h).
The calmest months (with the lowest average wind speed) are August and September (9.9km/h).
Average humidity in December
Grassano, Italy
- Average humidity in December: 76%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (49%).
Average rainfall in December
Grassano, Italy
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is April (63mm).
The driest month (with the least rainfall) is August (19mm).
Average rainfall days in December
Grassano, Italy
- Average rainfall days in December: 10.5 days
The months with the highest number of rainy days are April and May (17.3 days).
The month with the least rainy days is August (7.3 days).
Average snowfall in December
Grassano, Italy
- Average snowfall in December: 8mm
The month with the highest snowfall is February (30mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Grassano, Italy
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Grassano, Italy
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in December
Grassano, Italy
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Grassano, Italy
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Grassano, Italy
- Average cloud cover in December: 32
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Grassano, Italy
- Average visibility in December: 10km
The months with the highest visibility are May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, February, March, April and November (9km).
