May weather forecastTrenton, Canada

May

Weather in May

The last month of the spring, May, is a refreshing month in Trenton, Canada, with temperature in the range of an average low of 8.2°C (46.8°F) and an average high of 16.8°C (62.2°F).

Temperature

With the beginning of May, Trenton's average high-temperature sees an increase, transitioning from a frosty 9.3°C (48.7°F) in April to a refreshing 16.8°C (62.2°F). Throughout May, Trenton encounters an average temperature drop to a chilly 8.2°C (46.8°F).

Humidity

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

Rainfall

In May, the rain falls for 15.7 days. Throughout May, 64mm (2.52") of precipitation is accumulated. In Trenton, during the entire year, the rain falls for 160.4 days and collects up to 718mm (28.27") of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day in Trenton is 14h and 47min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:14 pm. On the last day of May, in Trenton, Canada, sunrise is at 5:30 am and sunset at 8:46 pm EDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In May, an average UV index of 4 transforms into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Trenton, in May, the average high-temperature is 16.8°C (62.2°F), and the average low-temperature is 8.2°C (46.8°F).

April, May, July through September, with an average relative humidity of 75%, are the least humid months in Trenton.

In May, the average relative humidity in Trenton is 75%.

In Trenton, in May, during 15.7 rainfall days, 64mm (2.52") of precipitation is typically accumulated.

In Trenton, Canada, snow does not fall in May through October.

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

In May, the average day length in Trenton, Canada, is 14h and 47min.

On the first day of May in Trenton, Canada, sunrise is at 6:00 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:46 pm EDT.

In Trenton, the average sunshine duration in May is 9.1h.

In Trenton, Canada, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

9.3°C

16.8°C

21.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

17.3km/h

13.9km/h

12.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.2

12.2

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Trenton, Canada

Average high temperature in May: 16.8°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 (-2.8°C).

Average low temperature in May: 8.2°C

The month with the highest average low temperature is July (17°C).
The coldest month (with the lowest average low temperature) is January (-8.7°C).

Average pressure in May
Trenton, Canada

Average pressure in May: 1015.1mbar

The months with the highest atmospheric pressure are March and November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).

Average wind speed in May
Trenton, Canada

Average wind speed in May: 12.8km/h

The windiest month (with the highest average wind speed) is January (17.2km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).

Average humidity in May
Trenton, Canada

Average humidity in May: 75%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, May, July, August and September (75%).

Average rainfall in May
Trenton, Canada

Average rainfall in May: 64mm

The wettest month (with the highest rainfall) is April (80mm).
The driest month (with the least rainfall) is September (42mm).

Average rainfall days in May
Trenton, Canada

Average rainfall days in May: 15.7 days

The month with the highest number of rainy days is August (16.5 days).
The month with the least rainy days is February (7.7 days).

Average snowfall in May
Trenton, Canada

Average snowfall in May: 0mm

The month with the highest snowfall is February (138mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in May
Trenton, Canada

Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Trenton, 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: 8h and 54min).

Average sunshine in May: 9h and 6min

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).