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 onset of December, Jona's average high-temperature slightly adjusts, moderately receding from November's chilly 7.5°C (45.5°F) to a wintry 3.2°C (37.8°F). Jona's nighttime temperature in December drops to an average of -2.7°C (27.1°F).Humidity
In December, the average relative humidity in Jona is 87%.Rainfall
In Jona, in December, it is raining for 9.8 days, with typically 56mm (2.2") of accumulated precipitation. Throughout the year, in Jona, Switzerland, there are 151 rainfall days, and 623mm (24.53") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Jona, in December, snow falls for 10.2 days, with typically accumulated 160mm (6.3") of snow. In Jona, during the entire year, snow falls for 50.4 days and aggregates up to 753mm (29.65") of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Jona, Switzerland.On the first day of the month, sunrise is at 07:51 and sunset at 16:36. On the last day of December, in Jona, sunrise is at 08:11 and sunset at 16:44 CET.
Sunshine
In Jona, the average sunshine in December is 4.7h.UV index
The months with the lowest UV index in Jona are November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Jona in December?
What is the average humidity in December in Jona?
How many days does it rain in December in Jona?
How many days does it snow in December in Jona?
What is the month with the shortest days in Jona?
How many hours of daylight does Jona have in December?
When is the sunrise / sunset in December in Jona?
How long on average sun shines in December in Jona?
When is the lowest UV index in Jona?
What is the UV index reading in December in Jona?
Average temperature in December
Jona, Switzerland
- Average high temperature in December: 3.2°C
The warmest months (with the highest average high temperature) are July and August (22.5°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in December: -2.7°C
The month with the highest average low temperature is August (11.1°C).
The coldest months (with the lowest average low temperature) are January and February (-4.3°C).
Average pressure in December
Jona, Switzerland
- Average pressure in December: 1020.8mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Jona, Switzerland
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in December
Jona, Switzerland
- Average humidity in December: 87%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is July (78%).
Average rainfall in December
Jona, Switzerland
- Average rainfall in December: 56mm
The wettest month (with the highest rainfall) is May (82mm).
The driest month (with the least rainfall) is November (31mm).
Average rainfall days in December
Jona, Switzerland
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in December
Jona, Switzerland
- Average snowfall in December: 160mm
The month with the highest snowfall is January (202mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Jona, Switzerland
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jona, Switzerland
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Jona, Switzerland
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Jona, Switzerland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Jona, Switzerland
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Jona, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January and February (7km).
