May weather forecastNiagara Falls, Canada
May
Weather in May
The last month of the spring, May, is a comfortable month in Niagara Falls, Canada, with an average temperature ranging between max 17.3°C (63.1°F) and min 9.3°C (48.7°F).Temperature
The onset of May brings a rise in the average high-temperature, elevating from a fresh 10.2°C (50.4°F) in April to an enjoyable 17.3°C (63.1°F). In Niagara Falls, May's nights observe an average temperature dip to a chilly 9.3°C (48.7°F).Humidity
In Niagara Falls, the average relative humidity in May is 77%.Rainfall
In Niagara Falls, during May, the rain falls for 17.6 days and regularly aggregates up to 75mm (2.95") of precipitation. Throughout the year, in Niagara Falls, there are 169.3 rainfall days, and 770mm (30.31") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Niagara Falls aggregates 6mm (0.24") of snow. In Niagara Falls, during the entire year, snow falls for 65.6 days and aggregates up to 574mm (22.6") of snow.Sea temperature
In May, the average sea temperature is 6.9°C (44.4°F).Note: Diving into 6.9°C (44.4°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
The average length of the day in May is 14h and 41min.On the first day of May, sunrise is at 6:08 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:48 pm EDT.
Sunshine
In May, the average sunshine in Niagara Falls is 9.1h.UV index
The average daily maximum UV index in May in Niagara Falls is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Niagara Falls, Canada
- Average high temperature in May: 17.3°C
The warmest month (with the highest average high temperature) is July (25.6°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in May: 9.3°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is January (-6.4°C).
Average pressure in May
Niagara Falls, Canada
- Average pressure in May: 1015.4mbar
The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in May
Niagara Falls, Canada
- Average wind speed in May: 13.1km/h
The windiest month (with the highest average wind speed) is January (19.8km/h).
The calmest month (with the lowest average wind speed) is July (11.5km/h).
Average humidity in May
Niagara Falls, Canada
- Average humidity in May: 77%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in May
Niagara Falls, Canada
- Average rainfall in May: 75mm
The wettest month (with the highest rainfall) is July (79mm).
The driest month (with the least rainfall) is September (47mm).
Average rainfall days in May
Niagara Falls, Canada
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in May
Niagara Falls, Canada
- Average snowfall in May: 6mm
The month with the highest snowfall is February (181mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Niagara Falls, Canada
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Niagara Falls, Canada
- Average sea temperature in May: 6.9°C
The best month for swimming (with the highest average sea temperature) is August (23.2°C).
The coldest month (with the lowest average sea temperature) is February (1.7°C).
Average daylight in May /
Average sunshine in May
Niagara Falls, Canada
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 9h and 6min
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 42min).
Average sunshine days in May
Niagara Falls, Canada
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in May
Niagara Falls, Canada
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Niagara Falls, Canada
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Niagara Falls, 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 and February (8km).
