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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, is an icy winter month in Willow Grove, Pennsylvania, with an average temperature varying between 24.6°F (-4.1°C) and 36.7°F (2.6°C). January is the coldest month, with an average high-temperature of 36.7°F (2.6°C) and an average low-temperature of 24.6°F (-4.1°C). Weather in January »
Weather in February
February, the last month of the winter in Willow Grove, is also an icy month, with an average temperature fluctuating between 26.6°F (-3°C) and 40.5°F (4.7°C). The onset of February marks an average high-temperature of a still icy 40.5°F (4.7°C), hardly differing from January's 36.7°F (2.6°C). Weather in February »
Weather in March
March, the first month of the spring in Willow Grove, is a chilly month, with an average temperature fluctuating between 33.8°F (1°C) and 48.7°F (9.3°C). As Willow Grove, Pennsylvania, welcomes March, the average high-temperature sees a modest rise, transitioning from an icy 40.5°F (4.7°C) in February to a chilly 48.7°F (9.3°C). Weather in March »
Weather in April
April in Willow Grove, Pennsylvania, is an enjoyable spring month, with an average temperature varying between 44.1°F (6.7°C) and 61.2°F (16.2°C). As March gives way to April, the average high-temperature displays an increase, moving from a frosty 48.7°F (9.3°C) to a refreshing 61.2°F (16.2°C). Weather in April »
Weather in May
May, the last month of the spring in Willow Grove, is a pleasant month, with an average temperature ranging between min 54.1°F (12.3°C) and max 71.8°F (22.1°C). May sees a temperature increase, moving from a refreshing 61.2°F (16.2°C) in April to a pleasant 71.8°F (22.1°C). Weather in May »
Weather in June
June, the first month of the summer in Willow Grove, is a moderately hot month, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 62.1°F (16.7°C). The coming of June brings a minor shift in Willow Grove's weather, with average high-temperatures adjusting from May's agreeable 71.8°F (22.1°C) to a warm 79.9°F (26.6°C). Weather in June »
Weather in July
July in Willow Grove, Pennsylvania, is a tropical summer month, with an average temperature varying between 86.2°F (30.1°C) and 68.2°F (20.1°C). Temperature readings reach their annual highs in July, averaging 86.2°F (30.1°C) and a minimum average of 68.2°F (20.1°C). The heat index for July is appraised at a very hot 96.8°F (36°C). Weather in July »
Weather in August
August, the last month of the summer in Willow Grove, is another warm month, with an average temperature varying between 66.7°F (19.3°C) and 83.3°F (28.5°C). Willow Grove, Pennsylvania, records an average high-temperature of a warm 83.3°F (28.5°C) as August arrives, nearly mirroring the previous month's climate. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Willow Grove, Pennsylvania, with an average temperature varying between 59.9°F (15.5°C) and 76.1°F (24.5°C). With the arrival of September, Willow Grove experiences a modest decline in average high-temperatures, transitioning from 83.3°F (28.5°C) in August to a still moderately hot 76.1°F (24.5°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Willow Grove, Pennsylvania, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 49.5°F (9.7°C). Willow Grove's October weather comes with a decrease in average high-temperatures, moving from a moderately hot 76.1°F (24.5°C) in September to a refreshing 64°F (17.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Willow Grove, is also a fresh month, with an average temperature varying between 37.9°F (3.3°C) and 52.2°F (11.2°C). In Willow Grove, entering November brings a temperature decrement, reducing from October's refreshing 64°F (17.8°C) to a cool 52.2°F (11.2°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Willow Grove, Pennsylvania, with an average temperature varying between 42.8°F (6°C) and 31.6°F (-0.2°C). The arrival of December corresponds with a shift in temperature, down from a cool 52.2°F (11.2°C) in November to a frosty 42.8°F (6°C). Weather in December »
Updated: Aug 26, 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 time of the year is the coldest?
With average temperatures fluctuating between a high of 36.7°F (2.6°C) and a low of 24.6°F (-4.1°C), January stands out as the coldest month.
How many days does it rain?
Throughout the year, there are 122.4 rainfall days, and 12.68" (322mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
How many days does it snow?
Throughout the year, there are 16.3 snowfall days, and 4.72" (120mm) of snow is accumulated.
When is the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What are the most humid months?
February, October and December, with an average relative humidity of 78%, are most humid months.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 4.8 days and typically aggregates up to 1.46" (37mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.8h of sunshine.
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 are the least humid months?
The months with the lowest humidity are April, July and August, with an average relative humidity of 72%.
When it does not snow?
In Willow Grove, snow does not fall in May through October.
What is the month with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What is the warmest month?
July, with its average high-temperature of 86.2°F (30.1°C) and an average low-temperature of 68.2°F (20.1°C), holds the record as the warmest month.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.7h of sunshine.
What is the wettest month in Willow Grove?
The month with the most rainfall is August, when the rain falls for 12.7 days and typically aggregates up to 1.54" (39mm) of precipitation.
What is the driest month in Willow Grove?
September is the month with the least rainfall in Willow Grove. Rain falls for 10.1 days and accumulates 0.75" (19mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Willow Grove, PA
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure
Willow Grove, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"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:
30.05"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
Willow Grove, PA
- Average wind speed in January:
8mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.4mph - Average wind speed in April:
8.3mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.2mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Willow Grove, PA
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall
Willow Grove, PA
- Average rainfall in January:
0.83" - Average rainfall in February:
0.83" - Average rainfall in March:
1.02" - Average rainfall in April:
0.98" - Average rainfall in May:
1.18" - Average rainfall in June:
1.22"
- Average rainfall in July:
1.42" - Average rainfall in August:
1.54" - Average rainfall in September:
0.75" - Average rainfall in October:
0.91" - Average rainfall in November:
0.87" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days
Willow Grove, PA
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
7 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
11.9 days - Average rainfall days in May:
14.1 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
13.9 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
6.4 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).
Average snowfall
Willow Grove, PA
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Willow Grove, PA
- Average snowfall days in January:
5.1 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 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 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Willow Grove, 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 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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:
5h and 0min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Willow Grove, PA
- Average sunshine days in January:
21.1 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
17.3 days - Average sunshine days in April:
15.4 days - Average sunshine days in May:
14.4 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
14.7 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
19.7 days - Average sunshine days in November:
21.3 days - Average sunshine days in December:
20.9 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).
Average UV index
Willow Grove, 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
Willow Grove, PA
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Willow Grove, 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).
Willow Grove, Pennsylvania, USA
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