Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April sees a rise in the average high-temperature, climbing from an icy 0.2°C (32.4°F) in March to a chilly 8.2°C (46.8°F). Chalk River's nighttime temperature in April drops to an average of -1.2°C (29.8°F).Humidity
The average relative humidity in April in Chalk River is 79%.Rainfall
April is the month with the most rainfall. Rain falls for 13.5 days and accumulates 68mm (2.68") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Chalk River, in April, during 6.8 snowfall days, 128mm (5.04") of snow is typically accumulated. Throughout the year, there are 81.7 snowfall days, and 1025mm (40.35") of snow is accumulated.Daylight
In Chalk River, the average length of the day in April is 13h and 35min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:38 pm. On the last day of April, in Chalk River, sunrise is at 5:56 am and sunset at 8:17 pm EDT.
Sunshine
In Chalk River, Canada, the average sunshine in April is 6.2h.UV index
In Chalk River, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 3 during April morphs into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Chalk River in April?
What is the average humidity in April in Chalk River?
What is the rainiest month in Chalk River?
How many days does it rain in April in Chalk River?
How much does it snow in Chalk River in April?
How many hours of daylight does Chalk River have in April?
When is the sunrise / sunset in April in Chalk River?
How long on average sun shines in April in Chalk River?
What is the UV index reading in April in Chalk River?
Average temperature in April
Chalk River, Canada
- Average high temperature in April: 8.2°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 April: -1.2°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 April
Chalk River, Canada
- Average pressure in April: 1014.5mbar
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 April
Chalk River, Canada
- Average wind speed in April: 12km/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 April
Chalk River, Canada
- Average humidity in April: 79%
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 April
Chalk River, Canada
- Average rainfall in April: 68mm
The wettest month (with the highest rainfall) is April (68mm).
The driest month (with the least rainfall) is November (37mm).
Average rainfall days in April
Chalk River, Canada
- Average rainfall days in April: 13.5 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 April
Chalk River, Canada
- Average snowfall in April: 128mm
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 April
Chalk River, Canada
- Average snowfall days in April: 6.8 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 April /
Average sunshine in April
Chalk River, Canada
- Average daylight in April: 13h and 4min
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 April: 6h and 1min
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 April
Chalk River, Canada
- Average sunshine days in April: 12.5 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 April
Chalk River, Canada
- Average UV index in April: 3
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 April
Chalk River, Canada
- Average cloud cover in April: 59
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 April
Chalk River, Canada
- Average visibility in April: 8km
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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