May weather forecast and climate
Belleville, Canada

May, the last month of the spring, in Belleville, is an enjoyable month, with temperature in the range of an average high of 17.1°C (62.8°F) and an average low of 8.2°C (46.8°F).

Temperature

In May, the average high-temperature rises, from a frosty 9.5°C (49.1°F) in April, to a comfortable 17.1°C (62.8°F). The average low-temperature, in May, is 8.2°C (46.8°F).

Humidity

Months with the lowest humidity in Belleville are April, May, July through September, with an average relative humidity of 75%.

Rainfall

In Belleville, during 13.3 rainfall days, 51mm (2.01") of precipitation is typically accumulated. Throughout the year, in Belleville, there are 145 rainfall days, and 595mm (23.43") of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Belleville.

Daylight

In May, the average length of the day in Belleville, Canada, is 14.8h.

Sunshine

In Belleville, the average sunshine in May is 9.2h.

UV index

The average daily maximum UV index in Belleville is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Belleville?

In Belleville, in May, the average high-temperature is 17.1°C (62.8°F), and the average low-temperature is 8.2°C (46.8°F).

What is the least humid month in Belleville?

Months with the lowest humidity are April, May, July through September, with an average relative humidity of 75%.

What is the average humidity in May in Belleville?

The average relative humidity in May in Belleville, Canada, is 75%.

How many days does it rain in May in Belleville?

In Belleville, Canada, in May, during 13.3 rainfall days, 51mm (2.01") of precipitation is typically accumulated.

Does it snow in Belleville in May?

In May, in Belleville, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Belleville?

In Belleville snow does not fall in May through September.

What is the average length of the day in May in Belleville?

In Belleville, Canada, the average length of the day in May is 14.8h.

How many hours of sunshine does Belleville have in May?

In Belleville, Canada, the average sunshine in May is 9.2h.

How high is the UV index in May in Belleville?

In Belleville, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.
Average temperature in May - Belleville, Canada
  • Average high temperature in May: 17.1°C

The warmest month (with the highest average high temperature) is July (25.5°C).
The month with the lowest average high temperature is January (-3°C).

  • Average low temperature in May: 8.2°C

The month with the highest average low temperature is July (16.8°C).
The coldest month (with the lowest average low temperature) is January (-9°C).

Average humidity in May - Belleville, Canada
  • Average humidity in May: 75%

Months with the highest relative humidity are January and February (85%).
Months with the lowest relative humidity are April, May, July, August and September (75%).

Average rainfall in May - Belleville, Canada
  • Average rainfall in May: 51mm

The wettest month (with the highest rainfall) is October (76mm).
The driest month (with the least rainfall) is February (36mm).

Average rainfall days in May - Belleville, Canada
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is August (16.2 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in May - Belleville, Canada
  • Average snowfall in May: 0mm

The month with the highest snowfall is December (105mm).
Months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in May - Belleville, Canada
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (12.5 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Belleville, Canada
  • Average daylight in May: 14.8h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in May: 9.2h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is January (Average sunshine: 3.1h).

Average UV index in May - Belleville, Canada
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January and December (UV index 1).