Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, recording an average high temperature of -4.2°C (24.4°F) and a low temperature of -13.3°C (8.1°F), is Arolla's coldest month.Humidity
In January, the average relative humidity in Arolla is 88%.Rainfall
In Arolla, Switzerland, in January, during 4.7 rainfall days, 61mm (2.4") of precipitation is typically accumulated. Throughout the year, there are 138.3 rainfall days, and 1170mm (46.06") of precipitation is accumulated.Snowfall
January through December are months with snowfall. In Arolla, in January, during 19.1 snowfall days, 511mm (20.12") of snow is typically accumulated. In Arolla, Switzerland, during the entire year, snow falls for 168.8 days and aggregates up to 6180mm (243.31") of snow.Daylight
In January, the average length of the day is 9h and 7min.On the first day of the month, sunrise is at 08:11 and sunset at 16:54. On the last day of January, sunrise is at 07:54 and sunset at 17:32 CET.
Sunshine
In Arolla, the average sunshine in January is 4.8h.UV index
January through April and November, with an average maximum UV index of 1, are months with the lowest UV index in Arolla. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 1 in January suggests the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What part of the year is the coldest in Arolla?
How cold is it in Arolla in January?
What is the average humidity in January in Arolla?
How much does it rain in Arolla in January?
How many days does it snow in January in Arolla?
What is the average length of the day in January in Arolla?
What time are sunrise and sunset in January in Arolla?
How many hours of sunshine does Arolla have in January?
What is the month with the lowest UV index in Arolla?
What is the UV index reading in January in Arolla?
Average temperature in January
Arolla, Switzerland
- Average high temperature in January: -4.2°C
The warmest months (with the highest average high temperature) are July and August (14.4°C).
The month with the lowest average high temperature is January (-4.2°C).
- Average low temperature in January: -13.3°C
The month with the highest average low temperature is August (4.7°C).
The coldest month (with the lowest average low temperature) is January (-13.3°C).
Average pressure in January
Arolla, Switzerland
- Average pressure in January: 1019mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in January
Arolla, Switzerland
- Average wind speed in January: 9.6km/h
The windiest month (with the highest average wind speed) is December (10km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in January
Arolla, Switzerland
- Average humidity in January: 88%
The month with the highest relative humidity is April (91%).
The month with the lowest relative humidity is July (80%).
Average rainfall in January
Arolla, Switzerland
- Average rainfall in January: 61mm
The wettest month (with the highest rainfall) is May (154mm).
The driest month (with the least rainfall) is February (58mm).
Average rainfall days in January
Arolla, Switzerland
- Average rainfall days in January: 4.7 days
The month with the highest number of rainy days is July (23 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in January
Arolla, Switzerland
- Average snowfall in January: 511mm
The month with the highest snowfall is November (1031mm).
The month with the least snowfall is July (11mm).
Average snowfall days in January
Arolla, Switzerland
- Average snowfall days in January: 19.1 days
The month with the highest number of snowfall days is April (23.8 days).
The months with the least snowfall days are July and August (1.3 days).
Average daylight in January /
Average sunshine in January
Arolla, Switzerland
- Average daylight in January: 9h and 1min
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 January: 4h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 30min).
Average sunshine days in January
Arolla, Switzerland
- Average sunshine days in January: 11.7 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is June (4.1 days).
Average UV index in January
Arolla, Switzerland
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, April and November (UV index 1).
Average cloud cover in January
Arolla, Switzerland
- Average cloud cover in January: 51
The month with the most cloud cover is April (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in January
Arolla, Switzerland
- Average visibility in January: 7km
The months with the highest visibility are June, July and August (8km).
The months with the lowest visibility are February, March, April, May and November (6km).
Arolla, Switzerland
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