May weather forecastWhitby, Canada
May
Weather in May
The last month of the spring, May, is a refreshing month in Whitby, Canada, with an average temperature fluctuating between 15.7°C (60.3°F) and 8°C (46.4°F).Temperature
Noticing a change, the average high-temperature during May moves from April's chilly 8.8°C (47.8°F) to a mild 15.7°C (60.3°F). During the nights in May, Whitby experiences a consistent average temperature of 8°C (46.4°F).Humidity
The average relative humidity in May is 77%.Rainfall
In Whitby, in May, during 16.4 rainfall days, 70mm (2.76") of precipitation is typically accumulated. In Whitby, during the entire year, the rain falls for 158.8 days and collects up to 693mm (27.28") of precipitation.Snowfall
In Whitby, snow does not fall in May through October.Daylight
The average length of the day in May in Whitby is 14h and 46min.On the first day of May, sunrise is at 6:06 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:50 pm EDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
In Whitby, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 4 in May translates into this advice:
Exercise prevention - Warding off sunburn is urged. Around midday, solar radiation is most harmful; hence, exposure should be limited. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Whitby, Canada
- Average high temperature in May: 15.7°C
The warmest month (with the highest average high temperature) is July (24.4°C).
The month with the lowest average high temperature is January (-2.9°C).
- Average low temperature in May: 8°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in May
Whitby, Canada
- Average pressure in May: 1015.2mbar
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
Whitby, Canada
- Average wind speed in May: 13.2km/h
The windiest month (with the highest average wind speed) is January (18.7km/h).
The calmest month (with the lowest average wind speed) is July (11.4km/h).
Average humidity in May
Whitby, Canada
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Whitby, Canada
- Average rainfall in May: 70mm
The wettest month (with the highest rainfall) is August (73mm).
The driest months (with the least rainfall) are February and November (43mm).
Average rainfall days in May
Whitby, 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 (7.3 days).
Average snowfall in May
Whitby, Canada
- Average snowfall in May: 0mm
The month with the highest snowfall is February (110mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Whitby, Canada
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Whitby, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Whitby, Canada
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in May
Whitby, 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
Whitby, Canada
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Whitby, Canada
- Average visibility in May: 9km
The months with the highest visibility are August and September (10km).
The month with the lowest visibility is January (8km).





