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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Chalk River, Canada, is another subzero cold winter month, with an average temperature fluctuating between -15.1°C (4.8°F) and -6.8°C (19.8°F). Temperature readings reach their annual highs in January, averaging -6.8°C (19.8°F) and a minimum average of -15.1°C (4.8°F). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Chalk River, Canada, with temperature in the range of an average low of -14.5°C (5.9°F) and an average high of -5.3°C (22.5°F). The arrival of February coincides with an average high-temperature of a still subzero cold -5.3°C (22.5°F), indicating a minimal shift from January's -6.8°C (19.8°F). Weather in February »
Weather in March
March, the first month of the spring in Chalk River, is a cold month, with an average temperature ranging between max 0.2°C (32.4°F) and min -8.2°C (17.2°F). With the onset of March, Chalk River sees a temperature rise, with the average high-temperature moving from February's subzero cold -5.3°C (22.5°F) to a cold 0.2°C (32.4°F). Weather in March »
Weather in April
April in Chalk River, Canada, is a chilly spring month, with an average temperature ranging between max 8.2°C (46.8°F) and min -1.2°C (29.8°F). 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). Weather in April »
Weather in May
May, the last month of the spring in Chalk River, is a refreshing month, with an average temperature ranging between min 6.1°C (43°F) and max 18.2°C (64.8°F). 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). Weather in May »
Weather in June
June, the first month of the summer in Chalk River, is a pleasant month, with an average temperature varying between 10.1°C (50.2°F) and 22.5°C (72.5°F). A slight uplift in the average high-temperature marks June, adjusting from May's enjoyable 18.2°C (64.8°F) to an agreeable 22.5°C (72.5°F). Weather in June »
Weather in July
July is a warm summer month in Chalk River, Canada, with an average temperature fluctuating between 13.3°C (55.9°F) and 25.8°C (78.4°F). July is the warmest month, with an average high-temperature of 25.8°C (78.4°F) and an average low-temperature of 13.3°C (55.9°F). Weather in July »
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). 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. Weather in August »
Weather in September
September, the first month of the autumn in Chalk River, is still a comfortable month, with an average temperature fluctuating between 8.9°C (48°F) and 19.6°C (67.3°F). September signals a slight drop in average high-temperature, sliding from August's warm 24.2°C (75.6°F) to a refreshing 19.6°C (67.3°F). Weather in September »
Weather in October
October, like September, in Chalk River, Canada, is a cool autumn month, with an average temperature ranging between min 3.6°C (38.5°F) and max 11.4°C (52.5°F). The arrival of October signals a clear decrease in the average high-temperature, falling from a comfortable 19.6°C (67.3°F) in September to a fresh 11.4°C (52.5°F). Weather in October »
Weather in November
The last month of the autumn, November, is another cold month in Chalk River, Canada, with temperature in the range of an average low of -2.5°C (27.5°F) and an average high of 3.8°C (38.8°F). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from a cool 11.4°C (52.5°F) in October to a cold 3.8°C (38.8°F). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Chalk River, Canada, with an average temperature ranging between max -3.5°C (25.7°F) and min -9°C (15.8°F). As December arrives, Chalk River's weather displays a decrease in high-temperatures, transitioning from November's icy 3.8°C (38.8°F) to a subzero cold -3.5°C (25.7°F). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Chalk River?
Chalk River's January weather, marked by an average high temperature of -6.8°C (19.8°F) and an average low temperature of -15.1°C (4.8°F), is the coldest in the year.
What are the most humid months in Chalk River?
The months with the highest humidity in Chalk River, Canada, are January and February, with an average relative humidity of 92%.
How many days does it rain in Chalk River?
In Chalk River, during the entire year, the rain falls for 126 days and collects up to 575mm (22.64") of precipitation.
When does it snow in Chalk River?
Months with snowfall are January through May, October through December.
What is the snowiest month in Chalk River?
January is the month with the most snowfall in Chalk River. Snow falls for 17.8 days and accumulates 239mm (9.41") of snow.
How many days does it snow in Chalk River?
In Chalk River, Canada, during the entire year, snow falls for 81.7 days and aggregates up to 1025mm (40.35") of snow.
What are the months with the lowest UV index in Chalk River?
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Chalk River.
What is the month with the least sunshine in Chalk River?
With an average of 1.9h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Chalk River?
On Sunday, 10. March 2024, at 2:00 am, Daylight Saving Time starts in Chalk River, Canada, and the time zone changes from EST to EDT. Daylight Saving Time ends on Sunday, 03. November 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the rainiest month in Chalk River?
April is the month with the most rainfall in Chalk River, Canada. Rain falls for 13.5 days and accumulates 68mm (2.68") of precipitation.
What is the least humid month in Chalk River?
The least humid month in Chalk River, Canada, is May, with an average relative humidity of 69%.
When it does not snow in Chalk River?
June through September are months without snowfall.
When are the longest days in Chalk River?
The month with the longest days in Chalk River is June, with an average of 15h and 42min of daylight.
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.
What is the warmest month in Chalk River?
Chalk River's temperature records reveal July as the warmest month, marked by average highs of 25.8°C (78.4°F) and lows of 13.3°C (55.9°F).
What month has the most sunshine in Chalk River?
With an average of 10.2h of sunshine, July has the most sunshine of the year in Chalk River, Canada.
What is the driest month in Chalk River?
The month with the least rainfall is November, when the rain falls for 8.5 days and typically collects 37mm (1.46") of precipitation.
What is the month with the shortest days in Chalk River?
With an average of 8h and 42min of daylight, December has the shortest days of the year in Chalk River, Canada.
Average temperature
Chalk River, Canada
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 January:
-15.1°C - Average low temperature in February:
-14.5°C - Average low temperature in March:
-8.2°C - Average low temperature in April:
-1.2°C - Average low temperature in May:
6.1°C - Average low temperature in June:
10.1°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
Chalk River, Canada
- Average pressure in January:
1016.5mbar - Average pressure in February:
1016.5mbar - Average pressure in March:
1018.3mbar - Average pressure in April:
1014.5mbar - Average pressure in May:
1014.9mbar - Average pressure in June:
1012.5mbar
- Average pressure in July:
1013mbar - Average pressure in August:
1013.9mbar - Average pressure in September:
1016.9mbar - Average pressure in October:
1015.2mbar - Average pressure in November:
1017.5mbar - Average pressure in December:
1017.2mbar
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
Chalk River, Canada
- Average wind speed in January:
10.8km/h - Average wind speed in February:
11.1km/h - Average wind speed in March:
11.1km/h - Average wind speed in April:
12km/h - Average wind speed in May:
10.4km/h - Average wind speed in June:
9.5km/h
- Average wind speed in July:
9.4km/h - Average wind speed in August:
9.1km/h - Average wind speed in September:
9.3km/h - Average wind speed in October:
10.7km/h - Average wind speed in November:
11km/h - Average wind speed in December:
10.6km/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
Chalk River, Canada
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (69%).
Average rainfall
Chalk River, Canada
The wettest month (with the highest rainfall) is April (68mm).
The driest month (with the least rainfall) is November (37mm).
Average rainfall days
Chalk River, Canada
- Average rainfall days in January:
4.2 days - Average rainfall days in February:
3.9 days - Average rainfall days in March:
8.5 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
13.7 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
6.3 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
Chalk River, Canada
- Average snowfall in January:
239mm - Average snowfall in February:
233mm - Average snowfall in March:
146mm - Average snowfall in April:
128mm - Average snowfall in May:
13mm - Average snowfall in June:
0mm
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
Chalk River, Canada
- Average snowfall days in January:
17.8 days - Average snowfall days in February:
17.4 days - Average snowfall days in March:
12.8 days - Average snowfall days in April:
6.8 days - Average snowfall days in May:
0.8 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1.3 days - Average snowfall days in November:
8.5 days - Average snowfall days in December:
16.3 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 / Average sunshine
Chalk River, Canada
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h 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 January:
2h and 1min - Average sunshine in February:
1h and 5min - Average sunshine in March:
3h and 5min - Average sunshine in April:
6h and 1min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 3min - Average sunshine in September:
8h and 2min - Average sunshine in October:
4h and 3min - Average sunshine in November:
3h and 5min - Average sunshine in December:
2h and 4min
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
Chalk River, Canada
- Average sunshine days in January:
13.2 days - Average sunshine days in February:
11.3 days - Average sunshine days in March:
13.7 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
14.5 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
14.7 days - Average sunshine days in November:
15.6 days - Average sunshine days in December:
12.4 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
Chalk River, Canada
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
Chalk River, Canada
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
Chalk River, Canada
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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