May weather forecastChâteauguay, Canada
May
Weather in May
May, the last month of the spring in Châteauguay, is a comfortable month, with temperature in the range of an average high of 18.2°C (64.8°F) and an average low of 8.5°C (47.3°F).Temperature
May's arrival sees a clear escalation in the average high-temperature, rising from April's frosty 9.9°C (49.8°F) to an enjoyable 18.2°C (64.8°F). Throughout May, the nighttime temperature in Châteauguay averages to a chilly 8.5°C (47.3°F).Humidity
The months with the lowest humidity in Châteauguay are April and May, with an average relative humidity of 75%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.1 days and typically aggregates up to 77mm (3.03") of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Châteauguay aggregates 1mm (0.04") of snow. In Châteauguay, during the entire year, snow falls for 65.7 days and aggregates up to 843mm (33.19") of snow.Daylight
In May, the average length of the day is 14h and 55min.On the first day of May, sunrise is at 5:42 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 8:35 pm EDT.
Sunshine
In Châteauguay, the average sunshine in May is 8.4h.UV index
The average daily maximum UV index in May in Châteauguay is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Châteauguay, Canada
- Average high temperature in May: 18.2°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 (-5.6°C).
- Average low temperature in May: 8.5°C
The month with the highest average low temperature is July (15.9°C).
The coldest month (with the lowest average low temperature) is January (-12.7°C).
Average pressure in May
Châteauguay, Canada
- Average pressure in May: 1014.8mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in May
Châteauguay, Canada
- Average wind speed in May: 12.7km/h
The windiest months (with the highest average wind speed) are February and April (14.5km/h).
The calmest month (with the lowest average wind speed) is July (10.8km/h).
Average humidity in May
Châteauguay, Canada
- Average humidity in May: 75%
The months with the highest relative humidity are January and February (90%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in May
Châteauguay, Canada
- Average rainfall in May: 77mm
The wettest month (with the highest rainfall) is May (77mm).
The driest months (with the least rainfall) are February and September (51mm).
Average rainfall days in May
Châteauguay, Canada
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in May
Châteauguay, Canada
- Average snowfall in May: 1mm
The month with the highest snowfall is February (219mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Châteauguay, Canada
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Châteauguay, 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 month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in May
Châteauguay, Canada
- Average sunshine days in May: 13 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in May
Châteauguay, 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, November and December (UV index 1).
Average cloud cover in May
Châteauguay, Canada
- Average cloud cover in May: 44
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Châteauguay, Canada
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is January (7km).
