Climate and monthly weather forecast
Berwyn, PA

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Weather in January

January, like December, in Berwyn, Pennsylvania, is a wintry winter month, with an average temperature varying between 36.5°F (2.5°C) and 24.3°F (-4.3°C). January is the coldest month, exhibiting average temperatures of 36.5°F (2.5°C) at the peak and 24.3°F (-4.3°C) at the base. Weather in January »

Weather in February

February, the last month of the winter in Berwyn, is another cold month, with an average temperature ranging between max 39.9°F (4.4°C) and min 26.4°F (-3.1°C). Berwyn's shift from January to February is accompanied by an average high-temperature of a still icy 39.9°F (4.4°C), a slight deviation from 36.5°F (2.5°C). Weather in February »

Weather in March

March, the first month of the spring in Berwyn, is a frosty month, with an average temperature varying between 48.2°F (9°C) and 33.4°F (0.8°C). Berwyn's weather in March presents a minor rise in the average high-temperature, moving from a wintry 39.9°F (4.4°C) in February to a chilly 48.2°F (9°C). Weather in March »

Weather in April

April is a comfortable spring month in Berwyn, Pennsylvania, with an average temperature fluctuating between 43.7°F (6.5°C) and 61°F (16.1°C). As April arrives, a rise in the average high-temperature is observed, moving from a chilly 48.2°F (9°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 Berwyn, is a pleasant month, with an average temperature fluctuating between 53.8°F (12.1°C) and 71.2°F (21.8°C). As May arrives, a rise in the average high-temperature is observed, moving from a comfortable 61°F (16.1°C) in April to an agreeable 71.2°F (21.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Berwyn, Pennsylvania, with an average temperature varying between 79.3°F (26.3°C) and 61.7°F (16.5°C). The start of June brings a subtle rise in the average high-temperature, moving from a pleasant 71.2°F (21.8°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Berwyn, Pennsylvania, with an average temperature varying between 67.6°F (19.8°C) and 85.3°F (29.6°C). With average high temperatures of 85.3°F (29.6°C) and lows of 67.6°F (19.8°C), July is the warmest month. The heat index value during July is estimated at a sweltering 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Berwyn, is another warm month, with an average temperature ranging between min 66°F (18.9°C) and max 82.9°F (28.3°C). August observes an average high-temperature of a still moderately hot 82.9°F (28.3°C), marking an insignificant difference from July's 85.3°F (29.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Berwyn, Pennsylvania, with an average temperature varying between 59.5°F (15.3°C) and 75.9°F (24.4°C). With the onset of September, Berwyn experiences a modest temperature adjustment, with the average high-temperature gently receding from a moderately hot 82.9°F (28.3°C) in August to a still warm 75.9°F (24.4°C). Weather in September »

Weather in October

October, like September, in Berwyn, Pennsylvania, is another refreshing autumn month, with an average temperature varying between 63.5°F (17.5°C) and 48.9°F (9.4°C). The onset of October introduces a moderate change in Berwyn's weather, with average high-temperatures falling from September's warm 75.9°F (24.4°C) to an enjoyable 63.5°F (17.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Berwyn, Pennsylvania, with an average temperature ranging between max 51.8°F (11°C) and min 37.6°F (3.1°C). Berwyn's November weather comes with a decrease in average high-temperatures, moving from a comfortable 63.5°F (17.5°C) in October to a fresh 51.8°F (11°C). Weather in November »

Weather in December

December, the first month of the winter in Berwyn, is also an icy month, with an average temperature varying between 42.6°F (5.9°C) and 31.1°F (-0.5°C). December brings a drop in Berwyn's average high-temperature, falling from a fresh 51.8°F (11°C) in November to an icy 42.6°F (5.9°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Berwyn?

Berwyn's January weather, marked by an average high temperature of 36.5°F (2.5°C) and an average low temperature of 24.3°F (-4.3°C), is the coldest in the year.

What is the driest month in Berwyn?

January, February and November are months with the least rain when the rain falls for 6.3 days and typically aggregates up to 1.3" (33mm) of rain.

How many days does it rain in Berwyn?

In Berwyn, during the entire year, the rain falls for 138.1 days and collects up to 20.79" (528mm) of precipitation.

When does it snow in Berwyn?

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

How many days does it snow in Berwyn?

Throughout the year, there are 19.3 snowfall days, and 7.68" (195mm) of snow is accumulated.

When is the lowest UV index in Berwyn?

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

What are the most humid months in Berwyn?

February and October, with an average relative humidity of 79%, are most humid months.

What is the month with the least sunshine in Berwyn?

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

What is the snowiest month in Berwyn?

March is the month with the most snowfall in Berwyn. Snow falls for 4 days and accumulates 1.93" (49mm) of snow.

When is Daylight Saving Time (DST) in Berwyn?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Berwyn, 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 least humid month in Berwyn?

April, July and August, with an average relative humidity of 73%, are the least humid months.

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

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

When it does not snow in Berwyn?

June through September are months without snowfall in Berwyn, Pennsylvania.

When are the longest days in Berwyn?

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

What part of the year is the hottest in Berwyn?

The average temperatures reach their apex in July, averaging 85.3°F (29.6°C) at the high end and 67.6°F (19.8°C) at the low end.

What month has the most sunshine in Berwyn?

The month with the most sunshine is July, with an average of 10.5h of sunshine.

What is the rainiest month in Berwyn?

The month with the most rainfall in Berwyn, Pennsylvania, is August, when the rain falls for 15.4 days and typically aggregates up to 2.72" (69mm) of precipitation.

What is the month with the shortest days in Berwyn?

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

Average temperature
Berwyn, PA

Average temperature - Berwyn, PA

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.5°F).

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure
Berwyn, PA

Average pressure - Berwyn, PA

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Berwyn, PA

Average wind speed - Berwyn, PA

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity
Berwyn, PA

Average humidity - Berwyn, PA

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April, July and August (73%).

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Average rainfall
Berwyn, PA

Average rainfall - Berwyn, PA

The wettest month (with the highest rainfall) is August (2.72").
The driest months (with the least rainfall) are January, February and November (1.3").

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Average rainfall days
Berwyn, PA

Average rainfall days - Berwyn, PA

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall
Berwyn, PA

Average snowfall - Berwyn, PA

The month with the highest snowfall is March (1.93").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Berwyn, PA

Average snowfall days - Berwyn, PA

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Berwyn, PA

Average daylight / Average sunshine - Berwyn, 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 July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days
Berwyn, PA

Average sunshine days - Berwyn, PA

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (12.7 days).

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Average UV index
Berwyn, PA

Average UV index - Berwyn, 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
Berwyn, PA

Average visibility - Berwyn, 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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Berwyn, Pennsylvania, USA

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