Climate and monthly weather forecastBerwyn, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Berwyn, Pennsylvania, with an average temperature fluctuating between 24.3°F (-4.3°C) and 36.5°F (2.5°C). January brings the lowest temperatures, with an average high of 36.5°F (2.5°C) and an average low of 24.3°F (-4.3°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Berwyn, Pennsylvania, with an average temperature fluctuating between 39.9°F (4.4°C) and 26.4°F (-3.1°C). As Berwyn, Pennsylvania, transitions into February, the average high-temperature stands at a still cold 39.9°F (4.4°C), offering little variation from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Berwyn, is a chilly month, with an average temperature fluctuating between 48.2°F (9°C) and 33.4°F (0.8°C). The shift into March is accompanied by a modest temperature increase, with the average high-temperature edging up from a wintry 39.9°F (4.4°C) in February to a frosty 48.2°F (9°C). Weather in March »Weather in April
April is an enjoyable spring month in Berwyn, Pennsylvania, with an average temperature ranging between min 43.7°F (6.5°C) and max 61°F (16.1°C). The onset of April brings a rise in the average high-temperature, elevating from a frosty 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). Berwyn, Pennsylvania, in May sees a temperature change, with average high-temperatures 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
June, the first month of the summer in Berwyn, is a moderately hot month, with an average temperature ranging between min 61.7°F (16.5°C) and max 79.3°F (26.3°C). June marks a minor ascent in the average high-temperature, adjusting from May's agreeable 71.2°F (21.8°C) to a moderately hot 79.3°F (26.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Berwyn, Pennsylvania, with an average temperature varying between 85.3°F (29.6°C) and 67.6°F (19.8°C). July is the warmest month, with the temperature often reaching an average high of 85.3°F (29.6°C) and an average low of 67.6°F (19.8°C). The heat index for July is evaluated at a sweltering 95°F (35°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Berwyn, Pennsylvania, with an average temperature ranging between min 66°F (18.9°C) and max 82.9°F (28.3°C). August's weather displays an average high-temperature of a still warm 82.9°F (28.3°C), slightly varied from July's 85.3°F (29.6°C). Weather in August »Weather in September
September, the first month of the autumn in Berwyn, is still a warm month, with an average temperature varying between 59.5°F (15.3°C) and 75.9°F (24.4°C). Berwyn's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 82.9°F (28.3°C) to a still moderately hot 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 ranging between min 48.9°F (9.4°C) and max 63.5°F (17.5°C). Welcoming October, Berwyn observes a shift in the average high-temperature, falling from September's moderately hot 75.9°F (24.4°C) to a refreshing 63.5°F (17.5°C). Weather in October »Weather in November
November, the last month of the autumn in Berwyn, is also a fresh month, with an average temperature fluctuating between 51.8°F (11°C) and 37.6°F (3.1°C). As November begins, there is a decrease in the average high-temperature, falling from a comfortable 63.5°F (17.5°C) in October to a cool 51.8°F (11°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Berwyn, Pennsylvania, with temperature in the range of an average high of 42.6°F (5.9°C) and an average low of 31.1°F (-0.5°C). A subtle decrease in the average high-temperature marks December, falling from November's cool 51.8°F (11°C) to a cold 42.6°F (5.9°C). Weather in December »Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The lowest temperatures are recorded in January, with averages reaching a high of 36.5°F (2.5°C) and a low of 24.3°F (-4.3°C).
The months with the least rainfall are January, February and November Rain falls for 6.3 days and accumulates 1.3" (33mm) of rain.
In Berwyn, during the entire year, the rain falls for 138.1 days and collects up to 20.79" (528mm) of precipitation.
January through May, October through December are months with snowfall.
In Berwyn, Pennsylvania, during the entire year, snow falls for 19.3 days and aggregates up to 7.68" (195mm) of snow.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February and October, with an average relative humidity of 79%, are most humid months in Berwyn.
With an average of 4.5h of sunshine, February has the least sunshine of the year.
March is the month with the most snowfall. Snow falls for 4 days and accumulates 1.93" (49mm) of snow.
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.
April, July and August, with an average relative humidity of 73%, are the least humid months.
The months with the highest UV index are May through August, with an average maximum UV index of 6.
June through September are months without snowfall in Berwyn, Pennsylvania.
With an average of 15h and 0min of daylight, June has the longest days of the year.
In Berwyn, the average temperatures in July are the highest, with a peak at 85.3°F (29.6°C) and a low of 67.6°F (19.8°C).
July has the most sunshine of the year, with an average of 10.5h of sunshine.
August is the month with the most rainfall. Rain falls for 15.4 days and accumulates 2.72" (69mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 24min of daylight.
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).
Average pressure
Berwyn, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Berwyn, PA
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.2mph - Average wind speed in March:
8.4mph - Average wind speed in April:
8.3mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.4mph - Average wind speed in December:
7.8mph
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).
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%).
Average rainfall
Berwyn, PA
- Average rainfall in January:
1.3" - Average rainfall in February:
1.3" - Average rainfall in March:
1.69" - Average rainfall in April:
1.69" - Average rainfall in May:
1.89" - Average rainfall in June:
1.97"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.72" - Average rainfall in September:
1.34" - Average rainfall in October:
1.46" - Average rainfall in November:
1.3" - Average rainfall in December:
1.81"
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").
Average rainfall days
Berwyn, PA
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
11 days - Average rainfall days in April:
12.2 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
15.4 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
9.1 days
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).
Average snowfall
Berwyn, PA
- Average snowfall in January:
1.69" - Average snowfall in February:
1.65" - Average snowfall in March:
1.93" - Average snowfall in April:
0.35" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Berwyn, PA
- Average snowfall days in January:
6.1 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
4 days - Average snowfall days in April:
0.4 days - Average snowfall days in May:
0.2 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:
0.1 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
2.5 days
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).
Average daylight / Average sunshine
Berwyn, PA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 12min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
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).
Average sunshine days
Berwyn, PA
- Average sunshine days in January:
19 days - Average sunshine days in February:
16.2 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
15.7 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
12.9 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
20.1 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (12.7 days).
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).
Average cloud cover
Berwyn, PA
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
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).
