May weather forecastGrasmo, Norway
May
Weather in May
May, the last month of the spring in Grasmo, is a mild month, with an average temperature ranging between max 14.9°C (58.8°F) and min 5.1°C (41.2°F).Temperature
Observing a rise in May, the average high-temperature goes from April's chilly 9.6°C (49.3°F) to a moderate 14.9°C (58.8°F). Grasmo experiences an average temperature drop to an icy 5.1°C (41.2°F) during May nights.Humidity
The months with the lowest humidity in Grasmo, Norway, are May and June, with an average relative humidity of 71%.Rainfall
In Grasmo, in May, it is raining for 16.7 days, with typically 47mm (1.85") of accumulated precipitation. In Grasmo, Norway, during the entire year, the rain falls for 154 days and collects up to 552mm (21.73") of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Grasmo. During 1.4 snowfall days, in May, Grasmo aggregates 11mm (0.43") of snow. Throughout the year, there are 66.1 snowfall days, and 882mm (34.72") of snow is accumulated.Daylight
In May, the average length of the day in Grasmo is 17h and 13min.On the first day of the month, sunrise is at 05:07 and sunset at 21:09. On the last day of May, sunrise is at 04:00 and sunset at 22:18 CEST.
Sunshine
In Grasmo, the average sunshine in May is 8.6h.UV index
In Grasmo, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 in May translates into these instructions:
Adopt protective measures - It is advised to guard against sun damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grasmo, Norway
- Average high temperature in May: 14.9°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (-2°C).
- Average low temperature in May: 5.1°C
The month with the highest average low temperature is July (11.1°C).
The coldest month (with the lowest average low temperature) is February (-6.4°C).
Average pressure in May
Grasmo, Norway
- Average pressure in May: 1014.1mbar
The month with the highest atmospheric pressure is April (1014.2mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in May
Grasmo, Norway
- Average wind speed in May: 10.3km/h
The windiest month (with the highest average wind speed) is January (11.2km/h).
The calmest months (with the lowest average wind speed) are July and August (9.5km/h).
Average humidity in May
Grasmo, Norway
- Average humidity in May: 71%
The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (71%).
Average rainfall in May
Grasmo, Norway
- Average rainfall in May: 47mm
The wettest month (with the highest rainfall) is August (63mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in May
Grasmo, Norway
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in May
Grasmo, Norway
- Average snowfall in May: 11mm
The month with the highest snowfall is March (193mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Grasmo, Norway
- Average snowfall days in May: 1.4 days
The month with the highest number of snowfall days is February (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grasmo, Norway
- Average daylight in May: 17h and 12min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in May
Grasmo, Norway
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is April (14.4 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in May
Grasmo, Norway
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, March, November and December (UV index 1).
Average cloud cover in May
Grasmo, Norway
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in May
Grasmo, Norway
- Average visibility in May: 9km
The months with the highest visibility are April, May and June (9km).
The months with the lowest visibility are January and February (6km).





