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
With the commencement of December, Guillaumes records a moderate temperature decline, with the average high easing from November's frosty 6.3°C (43.3°F) to a wintry 3.2°C (37.8°F). Guillaumes records a steady low-temperature average of -5.5°C (22.1°F) during December.Humidity
In Guillaumes, the average relative humidity in December is 78%.Rainfall
In December, the rain falls for 6.4 days. Throughout December, 67mm (2.64") of precipitation is accumulated. Throughout the year, there are 132.4 rainfall days, and 722mm (28.43") of precipitation is accumulated.Snowfall
January through June, October through December are months with snowfall. December is the month with the most snowfall in Guillaumes. Snow falls for 12.5 days and accumulates 542mm (21.34") of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Guillaumes.On the first day of December, sunrise is at 07:47 and sunset at 16:55. On the last day of the month, sunrise is at 08:07 and sunset at 17:04 CET.
Sunshine
The months with the least sunshine in Guillaumes are January and December, with an average of 6.3h of sunshine.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Guillaumes in December?
What is the average humidity in December in Guillaumes?
How much does it rain in Guillaumes in December?
When does it snow the most in Guillaumes?
How much does it snow in Guillaumes in December?
What is the month with the shortest days in Guillaumes?
What is the average length of the day in December in Guillaumes?
What time are sunrise and sunset in December in Guillaumes?
What are the months with the least sunshine in Guillaumes?
How long on average sun shines in December in Guillaumes?
What are the months with the lowest UV index in Guillaumes?
How high is the UV index in December in Guillaumes?
Average temperature in December
Guillaumes, France
- Average high temperature in December: 3.2°C
The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (1.7°C).
- Average low temperature in December: -5.5°C
The month with the highest average low temperature is August (9.5°C).
The coldest months (with the lowest average low temperature) are January and February (-7.1°C).
Average pressure in December
Guillaumes, France
- Average pressure in December: 1019.5mbar
The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is April (1014.4mbar).
Average wind speed in December
Guillaumes, France
- Average wind speed in December: 7.8km/h
The windiest month (with the highest average wind speed) is March (8.4km/h).
The calmest month (with the lowest average wind speed) is September (6.9km/h).
Average humidity in December
Guillaumes, France
- Average humidity in December: 78%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (62%).
Average rainfall in December
Guillaumes, France
- Average rainfall in December: 67mm
The wettest month (with the highest rainfall) is May (96mm).
The driest month (with the least rainfall) is September (32mm).
Average rainfall days in December
Guillaumes, France
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (6 days).
Average snowfall in December
Guillaumes, France
- Average snowfall in December: 542mm
The month with the highest snowfall is December (542mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in December
Guillaumes, France
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Guillaumes, France
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 18min).
Average sunshine days in December
Guillaumes, France
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is May (7.5 days).
Average UV index in December
Guillaumes, France
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Guillaumes, France
- Average cloud cover in December: 30
The month with the most cloud cover is April (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in December
Guillaumes, France
- Average visibility in December: 8km
The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January, February, November and December (8km).
