Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The onset of May marks an increase in the average high-temperature, moving from a fresh 10.8°C (51.4°F) in April to a refreshing 18.6°C (65.5°F). Port Rowan throughout May, records an average low-temperature of 8.8°C (47.8°F).Humidity
April and May, with an average relative humidity of 75%, are the least humid months in Port Rowan, Canada.Rainfall
In May, the rain falls for 16.6 days. Throughout May, 61mm (2.4") of precipitation is accumulated. Throughout the year, in Port Rowan, there are 163.9 rainfall days, and 672mm (26.46") of precipitation is accumulated.Snowfall
Months with snowfall in Port Rowan are January through May, October through December. May is the last month it regularly snows in Port Rowan. During 0.3 snowfall days, in May, Port Rowan aggregates 2mm (0.08") of snow. Throughout the year, there are 65.3 snowfall days, and 495mm (19.49") of snow is accumulated.Daylight
In Port Rowan, the average length of the day in May is 14h and 38min.On the first day of May in Port Rowan, sunrise is at 6:15 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:52 pm EDT.
Sunshine
In Port Rowan, the average sunshine in May is 9h.UV index
In Port Rowan, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In May, the UV index of 5 transforms into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Port Rowan in May?
What is the least humid month in Port Rowan?
What is the average humidity in May in Port Rowan?
How much does it rain in Port Rowan in May?
What is the last month it snows in Port Rowan?
What is the average length of the day in May in Port Rowan?
When is the sunrise / sunset in May in Port Rowan?
How many hours of sunshine does Port Rowan have in May?
How high is the UV index in May in Port Rowan?
Average temperature in May
Port Rowan, Canada
- Average high temperature in May: 18.6°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 (-2.7°C).
- Average low temperature in May: 8.8°C
The month with the highest average low temperature is July (15.9°C).
The coldest month (with the lowest average low temperature) is January (-8.1°C).
Average pressure in May
Port Rowan, Canada
- Average pressure in May: 1015.4mbar
The month with the highest atmospheric pressure is March (1018.6mbar).
The month with the lowest atmospheric pressure is June (1013.4mbar).
Average wind speed in May
Port Rowan, Canada
- Average wind speed in May: 13.4km/h
The windiest month (with the highest average wind speed) is January (18km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in May
Port Rowan, Canada
- Average humidity in May: 75%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in May
Port Rowan, Canada
- Average rainfall in May: 61mm
The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is September (39mm).
Average rainfall days in May
Port Rowan, Canada
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in May
Port Rowan, Canada
- Average snowfall in May: 2mm
The month with the highest snowfall is February (155mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Port Rowan, Canada
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Port Rowan, Canada
- Average daylight in May: 14h and 4min
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 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Port Rowan, Canada
- Average sunshine days in May: 11.1 days
The month with the most sunshine days is September (13.6 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
Port Rowan, Canada
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
Port Rowan, Canada
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Port Rowan, Canada
- Average visibility in May: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February and December (8km).
Port Rowan, Canada
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