Climate and monthly weather forecast
Downingtown, PA

Weather in January

January, like December, in Downingtown, Pennsylvania, is another cold winter month, with an average temperature varying between 23.7°F (-4.6°C) and 35.4°F (1.9°C). With an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 23.7°F (-4.6°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Downingtown, is another cold month, with an average temperature varying between 39.7°F (4.3°C) and 25.5°F (-3.6°C). In February, the average high-temperature is essentially the same as in January - a still cold 39.7°F (4.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Downingtown, Pennsylvania, with an average temperature varying between 32.5°F (0.3°C) and 48.2°F (9°C). In March, the average high-temperature slightly increases from a cold 39.7°F (4.3°C) in February to a chilly 48.2°F (9°C). Weather in March »

Weather in April

April in Downingtown, Pennsylvania, is a mild spring month, with an average temperature fluctuating between 60.3°F (15.7°C) and 42.4°F (5.8°C). In Downingtown, the average high-temperature in April increases from a chilly 48.2°F (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 Downingtown, is a pleasant month, with an average temperature varying between 70.9°F (21.6°C) and 52.3°F (11.3°C). In May, the average high-temperature rises from a mild 60.3°F (15.7°C) in April to an agreeable 70.9°F (21.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Downingtown, Pennsylvania, with an average temperature varying between 78.4°F (25.8°C) and 60.4°F (15.8°C). In Downingtown, Pennsylvania, the average high-temperature in June slightly increases from an agreeable 70.9°F (21.6°C) in May to a moderately hot 78.4°F (25.8°C). Weather in June »

Weather in July

July, like June, in Downingtown, Pennsylvania, is another warm summer month, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 66.2°F (19°C). With an average high-temperature of 84°F (28.9°C) and an average low-temperature of 66.2°F (19°C), July is the warmest month. In July, the average heat index is computed to be a hot 92.8°F (33.8°C). Weather in July »

Weather in August

August, the last month of the summer in Downingtown, is also a moderately hot month, with an average temperature ranging between max 81.1°F (27.3°C) and min 64.4°F (18°C). In August, the average high-temperature is almost 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 Downingtown, is also a moderately hot month, with an average temperature varying between 57.7°F (14.3°C) and 75°F (23.9°C). In September, the average high-temperature slightly decreases from a moderately hot 81.1°F (27.3°C) in August to a still warm 75°F (23.9°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Downingtown, Pennsylvania, with an average temperature varying between 63.3°F (17.4°C) and 47.7°F (8.7°C). In October, the average high-temperature decreases from a warm 75°F (23.9°C) in September to a comfortable 63.3°F (17.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Downingtown, Pennsylvania, with temperature in the range of an average high of 50.9°F (10.5°C) and an average low of 37°F (2.8°C). In November, the average high-temperature decreases from an enjoyable 63.3°F (17.4°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 Downingtown, Pennsylvania, with an average temperature fluctuating between 41.9°F (5.5°C) and 30.6°F (-0.8°C). In December, the average high-temperature drops from a cool 50.9°F (10.5°C) in November to a cold 41.9°F (5.5°C). Weather in December »
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FAQ

What is the coldest month in Downingtown?

The coldest month in Downingtown is January, with an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 23.7°F (-4.6°C).

How many days does it rain in Downingtown?

In Downingtown, Pennsylvania, during the entire year, the rain falls for 145.6 days and collects up to 26.81" (681mm) of precipitation.

When does it snow in Downingtown?

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

How many days does it snow in Downingtown?

Throughout the year, in Downingtown, Pennsylvania, there are 17.2 snowfall days, and 10.47" (266mm) of snow is accumulated.

When is the lowest UV index in Downingtown?

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

What are the most humid months in Downingtown?

The months with the highest humidity in Downingtown are February, May and October, with an average relative humidity of 80%.

What is the driest month in Downingtown?

The month with the least rainfall is February, when the rain falls for 7.5 days and typically collects 1.61" (41mm) of precipitation.

What is the month with the least sunshine in Downingtown?

The month with the least sunshine is February, with an average of 4.6h of sunshine.

What is the snowiest month in Downingtown?

March is the month with the most snowfall in Downingtown. Snow falls for 4.4 days and accumulates 3.46" (88mm) of snow.

When is Daylight Saving Time (DST) in Downingtown?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, 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 Downingtown?

April is the least humid month, with an average relative humidity of 75%.

What is the month with the highest UV index in Downingtown?

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

When it does not snow in Downingtown?

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

When are the longest days in Downingtown?

With an average of 14h and 58min of daylight, June has the longest days of the year.

What is the warmest month in Downingtown?

The warmest month is July, with an average high-temperature of 84°F (28.9°C) and an average low-temperature of 66.2°F (19°C).

What month has the most sunshine in Downingtown?

July has the most sunshine of the year in Downingtown, with an average of 10.6h of sunshine.

What is the rainiest month in Downingtown?

The month with the most rainfall in Downingtown, Pennsylvania, is August, when the rain falls for 15.4 days and typically aggregates up to 3.31" (84mm) of precipitation.

What is the month with the shortest days in Downingtown?

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

Average temperature
Downingtown, PA

Average temperature - Downingtown, PA

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

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Average pressure
Downingtown, PA

Average pressure - Downingtown, 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
Downingtown, PA

Average wind speed - Downingtown, PA

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity
Downingtown, PA

Average humidity - Downingtown, PA

The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall
Downingtown, PA

Average rainfall - Downingtown, PA

The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.61").

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Average rainfall days
Downingtown, PA

Average rainfall days - Downingtown, PA

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall
Downingtown, PA

Average snowfall - Downingtown, PA

The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Downingtown, PA

Average snowfall days - Downingtown, PA

The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Downingtown, PA

Average daylight / Average sunshine - Downingtown, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Downingtown, PA

Average sunshine days - Downingtown, PA

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (12.3 days).

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Average UV index
Downingtown, PA

Average UV index - Downingtown, 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
Downingtown, PA

Average visibility - Downingtown, 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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