Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
May is marked by a significant increase, with the average high-temperature advancing from a frosty 6.6°C (43.9°F) in April to a comfortable 16.6°C (61.9°F). In Copper Cliff, the May nights cool down to an average low of 5.1°C (41.2°F).Humidity
The least humid month is May, with an average relative humidity of 68%.Rainfall
In Copper Cliff, during May, the rain falls for 12 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, there are 108.1 rainfall days, and 474mm (18.66") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.2 snowfall days, in May, Copper Cliff aggregates 18mm (0.71") of snow. Throughout the year, in Copper Cliff, there are 86.7 snowfall days, and 865mm (34.06") of snow is accumulated.Daylight
In May, the average length of the day in Copper Cliff, Canada, is 15h and 2min.On the first day of May in Copper Cliff, sunrise is at 6:08 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 9:08 pm EDT.
Sunshine
The average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May in Copper Cliff is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Copper Cliff in May?
What is the least humid month in Copper Cliff?
What is the average humidity in May in Copper Cliff?
How many days does it rain in May in Copper Cliff?
What is the last month it snows in Copper Cliff?
How many hours of daylight does Copper Cliff have in May?
When is the sunrise / sunset in May in Copper Cliff?
How long on average sun shines in May in Copper Cliff?
How high is the UV index in May in Copper Cliff?
Average temperature in May
Copper Cliff, Canada
- Average high temperature in May: 16.6°C
The warmest month (with the highest average high temperature) is July (24.5°C).
The month with the lowest average high temperature is January (-8°C).
- Average low temperature in May: 5.1°C
The month with the highest average low temperature is July (12.7°C).
The coldest month (with the lowest average low temperature) is January (-15.9°C).
Average pressure in May
Copper Cliff, Canada
- Average pressure in May: 1015.2mbar
The month with the highest atmospheric pressure is March (1018.8mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).
Average wind speed in May
Copper Cliff, Canada
- Average wind speed in May: 11km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest months (with the lowest average wind speed) are June and August (10.1km/h).
Average humidity in May
Copper Cliff, Canada
- Average humidity in May: 68%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (68%).
Average rainfall in May
Copper Cliff, Canada
- Average rainfall in May: 39mm
The wettest month (with the highest rainfall) is October (65mm).
The driest months (with the least rainfall) are February and December (27mm).
Average rainfall days in May
Copper Cliff, Canada
- Average rainfall days in May: 12 days
The month with the highest number of rainy days is October (13.7 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in May
Copper Cliff, Canada
- Average snowfall in May: 18mm
The month with the highest snowfall is January (179mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Copper Cliff, Canada
- Average snowfall days in May: 1.2 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Copper Cliff, Canada
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 0min).
Average sunshine days in May
Copper Cliff, Canada
- Average sunshine days in May: 17.3 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in May
Copper Cliff, Canada
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in May
Copper Cliff, Canada
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in May
Copper Cliff, Canada
- Average visibility in May: 9km
The months with the highest visibility are May, June and July (9km).
The month with the lowest visibility is January (6km).
