May weather forecastMarkham, Canada
May
Weather in May
May in Markham brings further warmth, longer days and spring in full bloom. Daylight hours continue to increase making the days much longer than the winter months. It's a pleasant time of the year and is characterized by moderate temperatures. The rainfall increases to 65mm (2.56") as relative humidity settles at 76%. Packed with unavoidable freshness, May weather supports a plethora of outdoor activities.Temperature
Markham's transition into May brings a rise in the average high-temperature, moving from a chilly 9.3°C (48.7°F) in April to an enjoyable 16.4°C (61.5°F). During May, the nighttime temperature averages to a frosty 8°C (46.4°F).Humidity
In May, the average relative humidity in Markham is 76%.Rainfall
In Markham, in May, during 16.5 rainfall days, 65mm (2.56") of precipitation is typically accumulated. In Markham, during the entire year, the rain falls for 157.1 days and collects up to 653mm (25.71") of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Markham. During 0.3 snowfall days, in May, Markham aggregates 1mm (0.04") of snow. In Markham, during the entire year, snow falls for 51.3 days and aggregates up to 415mm (16.34") of snow.Daylight
In May, the average length of the day in Markham is 14h and 46min.On the first day of the month, sunrise is at 6:07 am and sunset at 8:20 pm. On the last day of May, in Markham, Canada, sunrise is at 5:38 am and sunset at 8:52 pm EDT.
Sunshine
The average sunshine in May is 8.9h.UV index
In Markham, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 4 suggests this advice:
Exercise prevention - Warding off sunburn is urged. It's recommended to limit sun exposure when its radiation is at its peak during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. 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
Markham, Canada
- Average high temperature in May: 16.4°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-3.2°C).
- Average low temperature in May: 8°C
The months with the highest average low temperature are July and August (16.6°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).
Average pressure in May
Markham, Canada
- Average pressure in May: 1015.3mbar
The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013mbar).
Average wind speed in May
Markham, Canada
- Average wind speed in May: 12.6km/h
The windiest month (with the highest average wind speed) is January (17.5km/h).
The calmest month (with the lowest average wind speed) is July (10.8km/h).
Average humidity in May
Markham, Canada
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Markham, Canada
- Average rainfall in May: 65mm
The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is February (30mm).
Average rainfall days in May
Markham, Canada
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in May
Markham, Canada
- Average snowfall in May: 1mm
The month with the highest snowfall is January (118mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Markham, Canada
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Markham, Canada
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Markham, Canada
- Average sunshine days in May: 12.9 days
The month with the most sunshine days is March (14.9 days).
The month with the least sunshine days is August (9 days).
Average UV index in May
Markham, 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
Markham, Canada
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in May
Markham, Canada
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
