Climate and monthly weather forecast
Canonsburg, PA

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Weather in January

January, the same as December, is another cold winter month in Canonsburg, Pennsylvania, with temperature in the range of an average low of 20.7°F (-6.3°C) and an average high of 33.4°F (0.8°C). Canonsburg's coldest temperatures are experienced in January, with average high temperatures of 33.4°F (0.8°C) and lows of 20.7°F (-6.3°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Canonsburg, Pennsylvania, with an average temperature ranging between max 38.1°F (3.4°C) and min 23.5°F (-4.7°C). February's advent denotes a minor fluctuation in the average high-temperature to a still wintry 38.1°F (3.4°C) from January's 33.4°F (0.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Canonsburg, Pennsylvania, with an average temperature fluctuating between 31.5°F (-0.3°C) and 47.8°F (8.8°C). The start of March brings a rise in the average high-temperature, moving from a cold 38.1°F (3.4°C) in February to a frosty 47.8°F (8.8°C). Weather in March »

Weather in April

April is a comfortable spring month in Canonsburg, Pennsylvania, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 61°F (16.1°C). Canonsburg's transition into April is marked by a temperature shift, moving from a chilly 47.8°F (8.8°C) in March to an enjoyable 61°F (16.1°C). Weather in April »

Weather in May

May, the last month of the spring in Canonsburg, is an agreeable month, with an average temperature fluctuating between 72.1°F (22.3°C) and 51.4°F (10.8°C). Entering May, Canonsburg sees a temperature rise, with the average high-temperature advancing from April's comfortable 61°F (16.1°C) to a pleasant 72.1°F (22.3°C). Weather in May »

Weather in June

June, the first month of the summer in Canonsburg, is a moderately hot month, with an average temperature fluctuating between 78.6°F (25.9°C) and 57.7°F (14.3°C). June witnesses a minor rise in the average high-temperature, transitioning from an agreeable 72.1°F (22.3°C) in May to a moderately hot 78.6°F (25.9°C). Weather in June »

Weather in July

July, like June, in Canonsburg, Pennsylvania, is another warm summer month, with temperature in the range of an average low of 62.1°F (16.7°C) and an average high of 83.3°F (28.5°C). With an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 62.1°F (16.7°C), July is the warmest month. In July, the heat index is evaluated at a hot 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Canonsburg, Pennsylvania, with an average temperature varying between 81.9°F (27.7°C) and 59.9°F (15.5°C). The advent of August reveals an average high-temperature of a still warm 81.9°F (27.7°C), showing minimal difference from the prior month. Weather in August »

Weather in September

September, the first month of the autumn in Canonsburg, is also a moderately hot month, with an average temperature fluctuating between 55.2°F (12.9°C) and 75.4°F (24.1°C). The arrival of September suggests a slight decrease in the average high-temperature, moving from 81.9°F (27.7°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »

Weather in October

October, like September, in Canonsburg, Pennsylvania, is another enjoyable autumn month, with an average temperature fluctuating between 45°F (7.2°C) and 62.1°F (16.7°C). October's arrival corresponds with a decrease in average high-temperatures, from September's moderately hot 75.4°F (24.1°C) to a refreshing 62.1°F (16.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Canonsburg, is another chilly month, with an average temperature fluctuating between 33.8°F (1°C) and 49.1°F (9.5°C). The start of November signals a decrease in the average high-temperature, transitioning from a refreshing 62.1°F (16.7°C) in October to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

December, the first month of the winter in Canonsburg, is also an icy month, with temperature in the range of an average low of 28.6°F (-1.9°C) and an average high of 40.1°F (4.5°C). Canonsburg's December weather shows a moderate shift in high-temperatures, falling from November's frosty 49.1°F (9.5°C) to a cold 40.1°F (4.5°C). Weather in December »
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

Canonsburg notes the coldest temperatures in January, with a average high of 33.4°F (0.8°C) and a low of 20.7°F (-6.3°C).

What are the most humid months?

January and February, with an average relative humidity of 84%, are most humid months.

How many days does it rain?

Throughout the year, in Canonsburg, there are 120.6 rainfall days, and 9.49" (241mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through May, November and December.

When does it snow the most?

The months with the most snowfall are January and February, with an average 0.79" (20mm) of accumulated snow.

How much does it snow?

Throughout the year, there are 28.5 snowfall days, and 2.95" (75mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 3h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

When it does not snow?

June through October are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What is the hottest time of year?

The warmest month is July, with an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 62.1°F (16.7°C).

What is the rainiest month?

July is the month with the most rainfall. Rain falls for 13.8 days and accumulates 1.06" (27mm) of precipitation.

What is the least humid month?

With an average relative humidity of 76%, August is the least humid month.

What month has the most sunshine?

August has the most sunshine of the year in Canonsburg, with an average of 10.2h of sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 9.4 days and typically collects 0.55" (14mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Canonsburg.

Average temperature
Canonsburg, PA

Average temperature - Canonsburg, PA

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure
Canonsburg, PA

Average pressure - Canonsburg, PA

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Canonsburg, PA

Average wind speed - Canonsburg, PA

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity
Canonsburg, PA

Average humidity - Canonsburg, PA

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).

Average rainfall
Canonsburg, PA

Average rainfall - Canonsburg, PA

The wettest month (with the highest rainfall) is July (1.06").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days
Canonsburg, PA

Average rainfall days - Canonsburg, PA

The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (6.3 days).

Average snowfall
Canonsburg, PA

Average snowfall - Canonsburg, PA

The months with the highest snowfall are January and February (0.79").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Canonsburg, PA

Average snowfall days - Canonsburg, PA

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Canonsburg, PA

Average daylight / Average sunshine - Canonsburg, PA

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days
Canonsburg, PA

Average sunshine days - Canonsburg, PA

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (13.5 days).

Average UV index
Canonsburg, PA

Average UV index - Canonsburg, PA

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average visibility
Canonsburg, PA

Average visibility - Canonsburg, PA

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Canonsburg, Pennsylvania, USA

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