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 is marked by a minor reduction in average high-temperature, sliding from a fresh 10.3°C (50.5°F) in November to a frosty 6.6°C (43.9°F). Throughout the month of December, Heyrieux witnesses an average low-temperature of 1.4°C (34.5°F).Humidity
With an average relative humidity of 85%, December is the most humid month in Heyrieux.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 48mm (1.89") of precipitation is accumulated. Throughout the year, there are 164.3 rainfall days, and 575mm (22.64") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, October through December. In Heyrieux, during December, snow falls for 3.7 days and regularly aggregates up to 34mm (1.34") of snow. Throughout the year, there are 17.1 snowfall days, and 147mm (5.79") of snow is accumulated.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 08:00 and sunset at 16:57. On the last day of the month, sunrise is at 08:20 and sunset at 17:05 CET.
Sunshine
In December, the average sunshine in Heyrieux is 4.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests 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. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
How cold does it get in Heyrieux in December?
What is the most humid month in Heyrieux?
What is the average humidity in December in Heyrieux?
How much does it rain in Heyrieux in December?
How many days does it snow in December in Heyrieux?
What is the month with the shortest days in Heyrieux?
What is the average length of the day in December in Heyrieux?
When are sunrise and sunset in December in Heyrieux?
How long on average sun shines in December in Heyrieux?
What is the month with the lowest UV index in Heyrieux?
How high is the UV index in December in Heyrieux?
Average temperature in December
Heyrieux, France
- Average high temperature in December: 6.6°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in December: 1.4°C
The months with the highest average low temperature are July and August (14.6°C).
The coldest month (with the lowest average low temperature) is January (0.1°C).
Average pressure in December
Heyrieux, France
- Average pressure in December: 1021.2mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in December
Heyrieux, France
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is February (11.7km/h).
The calmest months (with the lowest average wind speed) are August and September (8.4km/h).
Average humidity in December
Heyrieux, France
- Average humidity in December: 85%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Heyrieux, France
- Average rainfall in December: 48mm
The wettest month (with the highest rainfall) is November (65mm).
The driest month (with the least rainfall) is February (32mm).
Average rainfall days in December
Heyrieux, France
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in December
Heyrieux, France
- Average snowfall in December: 34mm
The month with the highest snowfall is February (41mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Heyrieux, France
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are April, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heyrieux, France
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Heyrieux, France
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in December
Heyrieux, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Heyrieux, France
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Heyrieux, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September and November (9km).
The months with the lowest visibility are January, October and December (8km).
Heyrieux, France
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