May weather forecastRosemère, Canada
May
Weather in May
The last month of the spring, May, is an enjoyable month in Rosemère, Canada, with an average temperature fluctuating between 18.1°C (64.6°F) and 8.4°C (47.1°F).Temperature
May brings with it a considerable temperature increase, with average high-temperatures rising from April's chilly 9.5°C (49.1°F) to a refreshing 18.1°C (64.6°F). During the month of May, Rosemère anticipates a mean low-temperature of 8.4°C (47.1°F).Humidity
May is the least humid month in Rosemère, with an average relative humidity of 74%.Rainfall
In Rosemère, Canada, in May, it is raining for 16.4 days, with typically 77mm (3.03") of accumulated precipitation. In Rosemère, during the entire year, the rain falls for 146.6 days and collects up to 778mm (30.63") of precipitation.Snowfall
May through September are months without snowfall in Rosemère.Daylight
In Rosemère, the average length of the day in May is 14h and 56min.On the first day of the month, sunrise is at 5:41 am and sunset at 8:02 pm. On the last day of May, in Rosemère, sunrise is at 5:09 am and sunset at 8:36 pm EDT.
Sunshine
In Rosemère, the average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index in Rosemère is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 in May translates into these instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rosemère, Canada
- Average high temperature in May: 18.1°C
The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-6.1°C).
- Average low temperature in May: 8.4°C
The month with the highest average low temperature is July (15.8°C).
The coldest month (with the lowest average low temperature) is January (-13.3°C).
Average pressure in May
Rosemère, Canada
- Average pressure in May: 1014.8mbar
The month with the highest atmospheric pressure is November (1017.8mbar).
The month with the lowest atmospheric pressure is June (1012.4mbar).
Average wind speed in May
Rosemère, Canada
- Average wind speed in May: 12.7km/h
The windiest month (with the highest average wind speed) is April (14.3km/h).
The calmest months (with the lowest average wind speed) are July and August (10.8km/h).
Average humidity in May
Rosemère, Canada
- Average humidity in May: 74%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (74%).
Average rainfall in May
Rosemère, Canada
- Average rainfall in May: 77mm
The wettest month (with the highest rainfall) is October (78mm).
The driest month (with the least rainfall) is September (49mm).
Average rainfall days in May
Rosemère, Canada
- Average rainfall days in May: 16.4 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in May
Rosemère, Canada
- Average snowfall in May: 0mm
The month with the highest snowfall is February (263mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in May
Rosemère, Canada
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rosemère, Canada
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 8h and 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in May
Rosemère, Canada
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in May
Rosemère, Canada
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Rosemère, Canada
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Rosemère, Canada
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March and December (8km).





