Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April signals a minor shift in the average high-temperature, moving from March's freezing cold -1.2°C (29.8°F) to a wintry 2.4°C (36.3°F). Arolla, in April, experiences an average temperature of -5.2°C (22.6°F) at night.Humidity
April is the most humid month in Arolla, with an average relative humidity of 91%.Rainfall
In Arolla, in April, it is raining for 6.8 days, with typically 109mm (4.29") of accumulated precipitation. 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, Switzerland. In April, in Arolla, Switzerland, it is snowing for 23.8 days. Throughout April, 863mm (33.98") of snow is accumulated. Throughout the year, there are 168.8 snowfall days, and 6180mm (243.31") of snow is accumulated.Daylight
The average length of the day in April is 13h and 34min.On the first day of the month, sunrise is at 07:08 and sunset at 19:58. On the last day of April, in Arolla, Switzerland, sunrise is at 06:17 and sunset at 20:37 CEST.
Sunshine
The average sunshine in April is 6.2h.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 hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 1 in April translates into these instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
How cold is it in Arolla in April?
What is the most humid month in Arolla?
What is the average humidity in April in Arolla?
How many days does it rain in April in Arolla?
How many days does it snow in April in Arolla?
How many hours of daylight does Arolla have in April?
When are sunrise and sunset in April in Arolla?
How long on average sun shines in April in Arolla?
When is the lowest UV index in Arolla?
What is the UV index reading in April in Arolla?
Average temperature in April
Arolla, Switzerland
- Average high temperature in April: 2.4°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 April: -5.2°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 April
Arolla, Switzerland
- Average pressure in April: 1015mbar
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 April
Arolla, Switzerland
- Average wind speed in April: 7.8km/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 April
Arolla, Switzerland
- Average humidity in April: 91%
The month with the highest relative humidity is April (91%).
The month with the lowest relative humidity is July (80%).
Average rainfall in April
Arolla, Switzerland
- Average rainfall in April: 109mm
The wettest month (with the highest rainfall) is May (154mm).
The driest month (with the least rainfall) is February (58mm).
Average rainfall days in April
Arolla, Switzerland
- Average rainfall days in April: 6.8 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 April
Arolla, Switzerland
- Average snowfall in April: 863mm
The month with the highest snowfall is November (1031mm).
The month with the least snowfall is July (11mm).
Average snowfall days in April
Arolla, Switzerland
- Average snowfall days in April: 23.8 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 April /
Average sunshine in April
Arolla, Switzerland
- Average daylight in April: 13h 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 April: 6h and 1min
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 April
Arolla, Switzerland
- Average sunshine days in April: 4.8 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 April
Arolla, Switzerland
- Average UV index in April: 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 April
Arolla, Switzerland
- Average cloud cover in April: 61
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 April
Arolla, Switzerland
- Average visibility in April: 6km
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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