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
The arrival of December corresponds with a light shift in temperature, down from a chilly 8.9°C (48°F) in November to an icy 4.9°C (40.8°F). Erba records a mean low-temperature of -1.5°C (29.3°F) in December.Humidity
In Erba, the average relative humidity in December is 74%.Rainfall
In Erba, during December, the rain falls for 9.9 days and regularly aggregates up to 56mm (2.2") of precipitation. In Erba, during the entire year, the rain falls for 192.7 days and collects up to 1242mm (48.9") of precipitation.Snowfall
Months with snowfall are January through March, September, November and December. December is the month with the most snowfall. Snow falls for 2.5 days and accumulates 36mm (1.42") of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:44 and sunset at 16:40. On the last day of December, sunrise is at 08:04 and sunset at 16:48 CET.
Sunshine
In Erba, Italy, the average sunshine in December is 6.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
Is it cold in Erba during December?
What is the average humidity in December in Erba?
How much does it rain in Erba in December?
What is the snowiest month in Erba?
How many days does it snow in December in Erba?
What is the month with the shortest days in Erba?
What is the average length of the day in December in Erba?
What time are sunrise and sunset in December in Erba?
How long on average sun shines in December in Erba?
What are the months with the lowest UV index in Erba?
What is the UV index intensity in December in Erba?
Average temperature in December
Erba, Italy
- Average high temperature in December: 4.9°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in December: -1.5°C
The months with the highest average low temperature are July and August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in December
Erba, Italy
- Average pressure in December: 1020.2mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The months with the lowest atmospheric pressure are April and May (1014.9mbar).
Average wind speed in December
Erba, Italy
- Average wind speed in December: 6.1km/h
The windiest months (with the highest average wind speed) are March and May (6.6km/h).
The calmest month (with the lowest average wind speed) is November (5.4km/h).
Average humidity in December
Erba, Italy
- Average humidity in December: 74%
The month with the highest relative humidity is November (81%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Erba, Italy
- Average rainfall in December: 56mm
The wettest month (with the highest rainfall) is November (162mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in December
Erba, Italy
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is May (23.2 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in December
Erba, Italy
- Average snowfall in December: 36mm
The month with the highest snowfall is December (36mm).
The months with the least snowfall are April, May, June, July, August and October (0mm).
Average snowfall days in December
Erba, Italy
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Erba, Italy
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in December
Erba, Italy
- Average sunshine days in December: 18.3 days
The months with the most sunshine days are January and December (18.3 days).
The month with the least sunshine days is May (5.1 days).
Average UV index in December
Erba, Italy
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Erba, Italy
- Average cloud cover in December: 30
The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in December
Erba, Italy
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Erba, Italy
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