August weather forecast
Chalk River, Canada

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Weather in August

August, the last month of the summer in Chalk River, is also a moderately hot month, with an average temperature varying between 12.5°C (54.5°F) and 24.2°C (75.6°F).

Temperature

With the advent of August, Chalk River experiences an average high-temperature of a still warm 24.2°C (75.6°F), mirroring a close resemblance to the previous month. Chalk River, in August, witnesses an average low-temperature of 12.5°C (54.5°F).

Humidity

In Chalk River, the average relative humidity in August is 77%.

Rainfall

In Chalk River, during August, the rain falls for 14.8 days and regularly aggregates up to 56mm (2.2") of precipitation. In Chalk River, during the entire year, the rain falls for 126 days and collects up to 575mm (22.64") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August is 14h and 5min.
On the first day of August, sunrise is at 5:53 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:49 pm EDT.

Sunshine

In August, the average sunshine is 9.5h.

UV index

June through August, with an average maximum UV index of 5, are months with the highest UV index in Chalk River. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 5 in August suggests the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. When the Sun is at its strongest around midday, find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What is the temperature in August in Chalk River?

The average high-temperature, in August, in Chalk River, is 24.2°C (75.6°F), while the average low-temperature is 12.5°C (54.5°F).

What is the average humidity in August in Chalk River?

In August, the average relative humidity in Chalk River is 77%.

How many days does it rain in August in Chalk River?

In Chalk River, during August, the rain falls for 14.8 days and regularly aggregates up to 56mm (2.2") of precipitation.

When it does not snow in Chalk River?

June through September are months without snowfall in Chalk River, Canada.

What is the average length of the day in August in Chalk River?

In August, the average day length is 14h and 5min.

When are sunrise and sunset in August in Chalk River?

On the first day of August, sunrise is at 5:53 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:49 pm EDT.

How many hours of sunshine does Chalk River have in August?

The average sunshine duration in August in Chalk River, Canada, is 9.5h.

What are the months with the highest UV index in Chalk River?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

How high is the UV index in August in Chalk River?

In Chalk River, Canada, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Chalk River, Canada

Average temperature in August - Chalk River, Canada
  • Average high temperature in August: 24.2°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 August: 12.5°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).

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Average pressure in August
Chalk River, Canada

Average pressure in August - Chalk River, Canada
  • Average pressure in August: 1013.9mbar

The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).

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Average wind speed in August
Chalk River, Canada

Average wind speed in August - Chalk River, Canada
  • Average wind speed in August: 9.1km/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).

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Average humidity in August
Chalk River, Canada

Average humidity in August - Chalk River, Canada
  • Average humidity in August: 77%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (69%).

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Average rainfall in August
Chalk River, Canada

Average rainfall in August - Chalk River, Canada
  • Average rainfall in August: 56mm

The wettest month (with the highest rainfall) is April (68mm).
The driest month (with the least rainfall) is November (37mm).

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Average rainfall days in August
Chalk River, Canada

Average rainfall days in August - Chalk River, Canada
  • Average rainfall days in August: 14.8 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).

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Average snowfall in August
Chalk River, Canada

Average snowfall in August - Chalk River, Canada
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (239mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in August
Chalk River, Canada

Average snowfall days in August - Chalk River, Canada
  • Average snowfall days in August: 0 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).

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Average daylight in August /
Average sunshine in August
Chalk River, Canada

Average daylight in August / Average sunshine in August - Chalk River, Canada
  • Average daylight in August: 14h and 1min

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 August: 9h 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).

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Average sunshine days in August
Chalk River, Canada

Average sunshine days in August - Chalk River, Canada
  • Average sunshine days in August: 13.9 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).

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Average UV index in August
Chalk River, Canada

Average UV index in August - Chalk River, Canada
  • Average UV index in August: 5

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).

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Average cloud cover in August
Chalk River, Canada

Average cloud cover in August - Chalk River, Canada
  • Average cloud cover in August: 39

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).

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Average visibility in August
Chalk River, Canada

Average visibility in August - Chalk River, Canada
  • Average visibility in August: 8km

The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (6km).

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Chalk River, Canada

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