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
Chalk River's transition into May marks a considerable rise in the average high-temperature, moving up from a chilly 8.2°C (46.8°F) in April to a comfortable 18.2°C (64.8°F). During May, the nighttime temperature presents a clear descent from the daily peaks, falling to an average of 6.1°C (43°F).Humidity
With an average relative humidity of 69%, May is the least humid month.Rainfall
In Chalk River, in May, it is raining for 13.7 days, with typically 58mm (2.28") of accumulated precipitation. Throughout the year, in Chalk River, there are 126 rainfall days, and 575mm (22.64") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.8 snowfall days, in May, Chalk River aggregates 13mm (0.51") of snow. Throughout the year, there are 81.7 snowfall days, and 1025mm (40.35") of snow is accumulated.Daylight
The average length of the day in May is 14h and 59min.On the first day of May in Chalk River, Canada, sunrise is at 5:55 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:52 pm EDT.
Sunshine
In Chalk River, the average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 4 during May translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the average May temperature in Chalk River?
What is the least humid month in Chalk River?
What is the average humidity in May in Chalk River?
How many days does it rain in May in Chalk River?
What is the last month it snows in Chalk River?
What is the average length of the day in May in Chalk River?
What time are sunrise and sunset in May in Chalk River?
How long on average sun shines in May in Chalk River?
How high is the UV index in May in Chalk River?
Average temperature in May
Chalk River, Canada
- Average high temperature in May: 18.2°C
The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is January (-6.8°C).
- Average low temperature in May: 6.1°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-15.1°C).
Average pressure in May
Chalk River, Canada
- Average pressure in May: 1014.9mbar
The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in May
Chalk River, Canada
- Average wind speed in May: 10.4km/h
The windiest month (with the highest average wind speed) is April (12km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in May
Chalk River, Canada
- Average humidity in May: 69%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (69%).
Average rainfall in May
Chalk River, Canada
- Average rainfall in May: 58mm
The wettest month (with the highest rainfall) is April (68mm).
The driest month (with the least rainfall) is November (37mm).
Average rainfall days in May
Chalk River, Canada
- Average rainfall days in May: 13.7 days
The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in May
Chalk River, Canada
- Average snowfall in May: 13mm
The month with the highest snowfall is January (239mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Chalk River, Canada
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Chalk River, Canada
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 1h and 54min).
Average sunshine days in May
Chalk River, Canada
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in May
Chalk River, Canada
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in May
Chalk River, Canada
- Average cloud cover in May: 44
The months with the most cloud cover are January and February (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in May
Chalk River, Canada
- Average visibility in May: 9km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (6km).
Chalk River, Canada
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