June weather forecastMarkham, Canada
June
Weather in June
June signifies the beginning of summer in Markham, a season noted for its warmth and extended daylight hours. When compared to May, both temperature and humidity ascend further, evolving June into an unmistakably sunny period. With an average maximum temperature of 21.1°C (70°F), June brings the warmest days so far. Sunshine hours surge to their peak, reaching 9.6 hours per day. Outdoor activities are popular in June with plenty of sun-basking opportunities and long daylight hours.Temperature
As Markham transitions into June, the average high-temperature is observed to slightly rise from an enjoyable 16.4°C (61.5°F) in May to a pleasant 21.1°C (70°F). During June, an average low-temperature of 12.7°C (54.9°F) is observed.Humidity
In June, the average relative humidity in Markham is 78%.Rainfall
In Markham, during June, the rain falls for 16.9 days and regularly aggregates up to 67mm (2.64") of precipitation. In Markham, during the entire year, the rain falls for 157.1 days and collects up to 653mm (25.71") of precipitation.Snowfall
June through September are months without snowfall.Daylight
June has the longest days of the year in Markham, Canada, with an average of 15h and 24min of daylight.On the first day of the month, sunrise is at 5:37 am and sunset at 8:53 pm. On the last day of June, sunrise is at 5:38 am and sunset at 9:03 pm EDT.
Sunshine
The average sunshine in June is 9.6h.UV index
The average daily maximum UV index in June is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In June, an average UV index of 5 transforms into the following instructions:
Undertake protective steps - Preventing sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Markham, Canada
- Average high temperature in June: 21.1°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 June: 12.7°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 June
Markham, Canada
- Average pressure in June: 1013mbar
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 June
Markham, Canada
- Average wind speed in June: 11.5km/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 June
Markham, Canada
- Average humidity in June: 78%
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 June
Markham, Canada
- Average rainfall in June: 67mm
The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is February (30mm).
Average rainfall days in June
Markham, Canada
- Average rainfall days in June: 16.9 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 June
Markham, Canada
- Average snowfall in June: 0mm
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 June
Markham, Canada
- Average snowfall days in June: 0 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 June /
Average sunshine in June
Markham, Canada
- Average daylight in June: 15h and 24min
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 June: 9h and 36min
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 June
Markham, Canada
- Average sunshine days in June: 11.4 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 June
Markham, Canada
- Average UV index in June: 5
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 June
Markham, Canada
- Average cloud cover in June: 35
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 June
Markham, Canada
- Average visibility in June: 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).








