May weather forecastAjax, Canada
May
Weather in May
The last month of the spring, May, is a refreshing month in Ajax, Canada, with an average temperature ranging between min 8°C (46.4°F) and max 15.8°C (60.4°F).Temperature
With the onset of May, the average high-temperature slightly shifts from April's frosty 8.8°C (47.8°F) to a moderate 15.8°C (60.4°F). Throughout May, the nighttime temperature in Ajax averages to a chilly 8°C (46.4°F).Humidity
In Ajax, Canada, the average relative humidity in May is 77%.Rainfall
In Ajax, in May, during 16.1 rainfall days, 70mm (2.76") of precipitation is typically accumulated. In Ajax, during the entire year, the rain falls for 151.8 days and collects up to 663mm (26.1") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day in Ajax is 14h and 46min.On the first day of the month, sunrise is at 6:06 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:36 am and sunset at 8:51 pm EDT.
Sunshine
The average sunshine in May in Ajax is 8.8h.UV index
In Ajax, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 4 in May leads to these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ajax, Canada
- Average high temperature in May: 15.8°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in May: 8°C
The months with the highest average low temperature are July and August (16.8°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in May
Ajax, 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
Ajax, 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
Ajax, 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
Ajax, Canada
- Average rainfall in May: 70mm
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is November (38mm).
Average rainfall days in May
Ajax, Canada
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in May
Ajax, Canada
- Average snowfall in May: 0mm
The month with the highest snowfall is February (106mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Ajax, Canada
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Ajax, 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: 2h and 54min).
Average sunshine days in May
Ajax, Canada
- Average sunshine days in May: 13.1 days
The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in May
Ajax, 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
Ajax, Canada
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Ajax, Canada
- Average visibility in May: 9km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, October, November and December (9km).
