May weather forecastRiondel, Canada
May
Weather in May
May, the last month of the spring in Riondel, is a refreshing month, with an average temperature fluctuating between 0.7°C (33.3°F) and 13.5°C (56.3°F).Temperature
Riondel's transition into May is marked by a clear temperature shift, advancing from an icy 5.5°C (41.9°F) in April to a mild 13.5°C (56.3°F). Despite the hot May days, Riondel's nights see an average temperature plunge to a wintry 0.7°C (33.3°F).Humidity
In Riondel, the average relative humidity in May is 73%.Rainfall
In May, in Riondel, the rain falls for 16.9 days. Throughout May, 60mm (2.36") of precipitation is accumulated. Throughout the year, in Riondel, Canada, there are 149 rainfall days, and 536mm (21.1") of precipitation is accumulated.Snowfall
Months with snowfall in Riondel are January through May, September through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Riondel aggregates 1mm (0.04") of snow. Throughout the year, there are 61.3 snowfall days, and 781mm (30.75") of snow is accumulated.Daylight
In Riondel, the average length of the day in May is 15h and 25min.On the first day of the month, sunrise is at 6:22 am and sunset at 9:06 pm. On the last day of May, sunrise is at 5:44 am and sunset at 9:46 pm MDT.
Sunshine
The average sunshine in May is 10.4h.UV index
In May, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 during May translates into the following directions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Riondel, Canada
- Average high temperature in May: 13.5°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is December (-4.3°C).
- Average low temperature in May: 0.7°C
The month with the highest average low temperature is August (7.1°C).
The coldest month (with the lowest average low temperature) is December (-12.4°C).
Average pressure in May
Riondel, Canada
- Average pressure in May: 1014.2mbar
The month with the highest atmospheric pressure is January (1022.3mbar).
The month with the lowest atmospheric pressure is June (1013mbar).
Average wind speed in May
Riondel, Canada
- Average wind speed in May: 5.7km/h
The windiest month (with the highest average wind speed) is March (6.2km/h).
The calmest months (with the lowest average wind speed) are August and September (5.5km/h).
Average humidity in May
Riondel, Canada
- Average humidity in May: 73%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (57%).
Average rainfall in May
Riondel, Canada
- Average rainfall in May: 60mm
The wettest month (with the highest rainfall) is June (65mm).
The driest month (with the least rainfall) is August (18mm).
Average rainfall days in May
Riondel, Canada
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is April (19.8 days).
The month with the least rainy days is December (7 days).
Average snowfall in May
Riondel, Canada
- Average snowfall in May: 1mm
The month with the highest snowfall is December (194mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in May
Riondel, Canada
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Riondel, Canada
- Average daylight in May: 15h and 24min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in May: 10h and 24min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Riondel, Canada
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is August (20.7 days).
The month with the least sunshine days is April (7.8 days).
Average UV index in May
Riondel, Canada
- Average UV index in May: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in May
Riondel, Canada
- Average cloud cover in May: 36
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in May
Riondel, Canada
- Average visibility in May: 8km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (3km).





