Climate and monthly weather forecast
Coatesville, PA

Weather in January

January, like December, in Coatesville, Pennsylvania, is another cold winter month, with an average temperature fluctuating between 23.4°F (-4.8°C) and 35.6°F (2°C). January is the coldest month, with an average high-temperature of 35.6°F (2°C) and an average low-temperature of 23.4°F (-4.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Coatesville, Pennsylvania, with temperature in the range of an average low of 25.9°F (-3.4°C) and an average high of 39.6°F (4.2°C). In February, the average high-temperature is essentially the same as in January - a still cold 39.6°F (4.2°C). Weather in February »

Weather in March

March, the first month of the spring in Coatesville, is a frosty month, with temperature in the range of an average high of 48°F (8.9°C) and an average low of 33.1°F (0.6°C). In March, the average high-temperature marginally rises from a cold 39.6°F (4.2°C) in February to a frosty 48°F (8.9°C). Weather in March »

Weather in April

April in Coatesville, Pennsylvania, is a mild spring month, with an average temperature ranging between min 42.8°F (6°C) and max 60.3°F (15.7°C). In April, the average high-temperature increases from a frosty 48°F (8.9°C) in March to a mild 60.3°F (15.7°C). Weather in April »

Weather in May

May, the last month of the spring in Coatesville, is an agreeable month, with an average temperature fluctuating between 70.3°F (21.3°C) and 52.7°F (11.5°C). In May, the average high-temperature rises from a mild 60.3°F (15.7°C) in April to an agreeable 70.3°F (21.3°C). Weather in May »

Weather in June

June, the first month of the summer in Coatesville, is a warm month, with an average temperature varying between 60.4°F (15.8°C) and 78.1°F (25.6°C). In Coatesville, the average high-temperature in June slightly increases from an agreeable 70.3°F (21.3°C) in May to a moderately hot 78.1°F (25.6°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Coatesville, Pennsylvania, with an average temperature varying between 65.8°F (18.8°C) and 83.5°F (28.6°C). The warmest month is July, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 65.8°F (18.8°C). In July, the average heat index is calculated to be a hot 91.9°F (33.3°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Coatesville, Pennsylvania, with an average temperature fluctuating between 81.1°F (27.3°C) and 64.2°F (17.9°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 81.1°F (27.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Coatesville, is also a moderately hot month, with an average temperature varying between 57.4°F (14.1°C) and 74.8°F (23.8°C). In Coatesville, the average high-temperature in September slightly decreases from a moderately hot 81.1°F (27.3°C) in August to a still warm 74.8°F (23.8°C). Weather in September »

Weather in October

October, like September, in Coatesville, Pennsylvania, is another enjoyable autumn month, with an average temperature varying between 48°F (8.9°C) and 63°F (17.2°C). In Coatesville, the average high-temperature in October drops from a moderately hot 74.8°F (23.8°C) in September to a comfortable 63°F (17.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Coatesville, Pennsylvania, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 50.9°F (10.5°C). In November, the average high-temperature decreases from a comfortable 63°F (17.2°C) in October to a cool 50.9°F (10.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Coatesville, Pennsylvania, with an average temperature varying between 30.6°F (-0.8°C) and 41.9°F (5.5°C). In December, the average high-temperature drops from a fresh 50.9°F (10.5°C) in November to a wintry 41.9°F (5.5°C). Weather in December »
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FAQ

What is the coldest month in Coatesville?

January is the coldest month in Coatesville, Pennsylvania, with an average high-temperature of 35.6°F (2°C) and an average low-temperature of 23.4°F (-4.8°C).

How much does it rain in Coatesville?

In Coatesville, during the entire year, the rain falls for 138.3 days and collects up to 19.76" (502mm) of precipitation.

When does it snow in Coatesville?

Months with snowfall are January through May, October through December.

How much does it snow in Coatesville?

Throughout the year, there are 19.6 snowfall days, and 7.64" (194mm) of snow is accumulated.

What are the months with the lowest UV index in Coatesville?

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

What is the driest month in Coatesville?

The month with the least rainfall is February, when the rain falls for 6.9 days and typically collects 1.14" (29mm) of precipitation.

What is the month with the least sunshine in Coatesville?

With an average of 4.5h of sunshine, February has the least sunshine of the year.

What is the snowiest month in Coatesville?

March is the month with the most snowfall in Coatesville, Pennsylvania. Snow falls for 4.3 days and accumulates 2.32" (59mm) of snow.

When is Daylight Saving Time (DST) in Coatesville?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Coatesville, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Coatesville?

With an average relative humidity of 76%, April is the least humid month in Coatesville.

What is the most humid month in Coatesville?

May and October, with an average relative humidity of 81%, are most humid months.

When is the highest UV index in Coatesville?

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

When it does not snow in Coatesville?

In Coatesville, snow does not fall in June through September.

When are the longest days in Coatesville?

The month with the longest days is June, with an average of 14h and 58min of daylight.

What is the warmest month in Coatesville?

July is the warmest month in Coatesville, Pennsylvania, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 65.8°F (18.8°C).

What month has the most sunshine in Coatesville?

The month with the most sunshine in Coatesville, Pennsylvania, is July, with an average of 10.4h of sunshine.

What is the wettest month in Coatesville?

The month with the most rainfall in Coatesville, Pennsylvania, is August, when the rain falls for 14.8 days and typically aggregates up to 2.72" (69mm) of precipitation.

What is the month with the shortest days in Coatesville?

With an average of 9h and 23min of daylight, December has the shortest days of the year in Coatesville.

Average temperature
Coatesville, PA

Average temperature - Coatesville, PA

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.6°F).

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure
Coatesville, PA

Average pressure - Coatesville, PA

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Coatesville, PA

Average wind speed - Coatesville, PA

The windiest months (with the highest average wind speed) are January, February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity
Coatesville, PA

Average humidity - Coatesville, PA

The months with the highest relative humidity are May and October (81%).
The month with the lowest relative humidity is April (76%).

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Average rainfall
Coatesville, PA

Average rainfall - Coatesville, PA

The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is February (1.14").

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Average rainfall days
Coatesville, PA

Average rainfall days - Coatesville, PA

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.4 days).

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Average snowfall
Coatesville, PA

Average snowfall - Coatesville, PA

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Coatesville, PA

Average snowfall days - Coatesville, PA

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Coatesville, PA

Average daylight / Average sunshine - Coatesville, PA

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 23min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days
Coatesville, PA

Average sunshine days - Coatesville, PA

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (12.4 days).

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Average UV index
Coatesville, PA

Average UV index - Coatesville, 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).

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Average visibility
Coatesville, PA

Average visibility - Coatesville, PA

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

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