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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in East William Penn, Pennsylvania, is another subzero cold winter month, with an average temperature varying between 19.6°F (-6.9°C) and 31.8°F (-0.1°C). The coldest temperatures occur during January, when averages reach a peak of 31.8°F (-0.1°C) and a low of 19.6°F (-6.9°C). Weather in January »
Weather in February
February, the last month of the winter in East William Penn, is an icy month, with an average temperature fluctuating between 35.6°F (2°C) and 21.9°F (-5.6°C). The weather during February records an average high-temperature of a cold 35.6°F (2°C), closely mirroring the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in East William Penn, Pennsylvania, with temperature in the range of an average high of 44.6°F (7°C) and an average low of 29.1°F (-1.6°C). In East William Penn, the average high-temperature in March increases from an icy 35.6°F (2°C) in February to a frosty 44.6°F (7°C). Weather in March »
Weather in April
April in East William Penn, Pennsylvania, is a refreshing spring month, with an average temperature ranging between min 39°F (3.9°C) and max 57.2°F (14°C). April signals a shift in the average high-temperature, moving from March's chilly 44.6°F (7°C) to a mild 57.2°F (14°C). Weather in April »
Weather in May
May, the last month of the spring in East William Penn, is a pleasant month, with an average temperature fluctuating between 49.5°F (9.7°C) and 68°F (20°C). East William Penn's weather shows a temperature rise with the arrival of May, moving from a refreshing 57.2°F (14°C) in April to an agreeable 68°F (20°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in East William Penn, Pennsylvania, with an average temperature fluctuating between 56.8°F (13.8°C) and 75.4°F (24.1°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's pleasant 68°F (20°C) to a warm 75.4°F (24.1°C). Weather in June »
Weather in July
July, like June, in East William Penn, Pennsylvania, is another warm summer month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 61.2°F (16.2°C). July, marked by an average high-temperature of 81.1°F (27.3°C) and a low-temperature of 61.2°F (16.2°C), is the warmest month. In July, the heat index is evaluated at a tropical 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in East William Penn, Pennsylvania, with an average temperature ranging between min 59.5°F (15.3°C) and max 78.4°F (25.8°C). August's arrival brings an average high-temperature of a still moderately hot 78.4°F (25.8°C), demonstrating subtle variation from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in East William Penn, is also an agreeable month, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 53.8°F (12.1°C). With the arrival of September, East William Penn notices a mild change in the average high-temperature, sliding from August's moderately hot 78.4°F (25.8°C) to an agreeable 72.7°F (22.6°C). Weather in September »
Weather in October
October, the same as September, in East William Penn, Pennsylvania, is a moderate autumn month, with an average temperature ranging between max 59.9°F (15.5°C) and min 44.4°F (6.9°C). In East William Penn, the beginning of October is marked by a lowered average high-temperature, shifting from September's pleasant 72.7°F (22.6°C) to a mild 59.9°F (15.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in East William Penn, Pennsylvania, with temperature in the range of an average low of 33.6°F (0.9°C) and an average high of 47.3°F (8.5°C). November's arrival coincides with a drop in the average high-temperature, decreasing from October's mild 59.9°F (15.5°C) to a chilly 47.3°F (8.5°C). Weather in November »
Weather in December
December, the first month of the winter in East William Penn, is still a cold month, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 37.9°F (3.3°C). December's onset brings a slight change in high-temperatures, falling from a chilly 47.3°F (8.5°C) in November to a cold 37.9°F (3.3°C). Weather in December »
Updated: Aug 22, 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
What month is the coldest?
East William Penn's coldest month, January, registers temperatures that range from a high of 31.8°F (-0.1°C) to a low of 19.6°F (-6.9°C).
How many days does it rain?
In East William Penn, during the entire year, the rain falls for 171 days and collects up to 34.25" (870mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
When does it snow the most in East William Penn?
The month with the most snowfall is January, when snow falls for 12.7 days and typically aggregates up to 7.24" (184mm) of snow.
How many days does it snow?
In East William Penn, during the entire year, snow falls for 48.5 days and aggregates up to 27.72" (704mm) of snow.
What is the month with the least sunshine?
January and February, with an average of 4.3h of sunshine, are months with the least sunshine.
What are the months 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 in East William Penn.
What is the most humid month?
With an average relative humidity of 83%, February is the most humid month.
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 least humid month?
With an average relative humidity of 77%, April is the least humid month.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 19 days and typically aggregates up to 3.39" (86mm) of precipitation.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 5, are months with the highest UV index.
When it does not snow in East William Penn?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What is the warmest month?
July, recognised by an average high temperature of 81.1°F (27.3°C) and a low of 61.2°F (16.2°C), is East William Penn's warmest month.
What month has the most sunshine in East William Penn?
With an average of 10.4h of sunshine, July has the most sunshine of the year.
What is the driest month?
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.97" (50mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
East William Penn, PA
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure
East William Penn, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.07"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
East William Penn, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.2mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
East William Penn, PA
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall
East William Penn, PA
- Average rainfall in January:
2.68" - Average rainfall in February:
2.6" - Average rainfall in March:
2.76" - Average rainfall in April:
3.23" - Average rainfall in May:
3.39" - Average rainfall in June:
2.76"
- Average rainfall in July:
3.19" - Average rainfall in August:
3.15" - Average rainfall in September:
1.97" - Average rainfall in October:
2.95" - Average rainfall in November:
2.72" - Average rainfall in December:
2.87"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days
East William Penn, PA
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
10.7 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
17.4 days - Average rainfall days in May:
19 days - Average rainfall days in June:
16.5 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
14.2 days - Average rainfall days in November:
11.2 days - Average rainfall days in December:
12.6 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (9.7 days).
Average snowfall
East William Penn, PA
- Average snowfall in January:
7.24" - Average snowfall in February:
6.22" - Average snowfall in March:
5.83" - Average snowfall in April:
0.43" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is January (7.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
East William Penn, PA
- Average snowfall days in January:
12.7 days - Average snowfall days in February:
12.1 days - Average snowfall days in March:
8.8 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.3 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:
0.6 days - Average snowfall days in November:
3.6 days - Average snowfall days in December:
8.6 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
East William Penn, PA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 1min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days
East William Penn, PA
- Average sunshine days in January:
12.9 days - Average sunshine days in February:
9.9 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
10.5 days - Average sunshine days in May:
9.1 days - Average sunshine days in June:
10.5 days
- Average sunshine days in July:
10.4 days - Average sunshine days in August:
12 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
15.8 days - Average sunshine days in December:
13.6 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.1 days).
Average UV index
East William Penn, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
East William Penn, PA
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
East William Penn, PA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
East William Penn, Pennsylvania, USA
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