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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 a wintry winter month in Valley Forge, Pennsylvania, with an average temperature fluctuating between 36°F (2.2°C) and 23.9°F (-4.5°C). Valley Forge's January weather, with an average high temperature of 36°F (2.2°C) and an average low temperature of 23.9°F (-4.5°C), tends to be the coldest of the year. Weather in January »
Weather in February
February, the last month of the winter in Valley Forge, is also an icy month, with an average temperature ranging between max 39.6°F (4.2°C) and min 26.1°F (-3.3°C). The advent of February reveals an average high-temperature of a still cold 39.6°F (4.2°C), showing minimal difference from the prior month. Weather in February »
Weather in March
March, the first month of the spring in Valley Forge, is a chilly month, with an average temperature ranging between min 32.9°F (0.5°C) and max 48.4°F (9.1°C). March witnesses a subtle temperature ascent, adjusting from a cold 39.6°F (4.2°C) in February to a chilly 48.4°F (9.1°C). Weather in March »
Weather in April
April in Valley Forge, Pennsylvania, is a moderate spring month, with an average temperature varying between 60.6°F (15.9°C) and 43.2°F (6.2°C). April's arrival is marked by an increase in the average high-temperature, moving from a chilly 48.4°F (9.1°C) in March to a mild 60.6°F (15.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Valley Forge, Pennsylvania, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 53.1°F (11.7°C). In Valley Forge, stepping into May brings a temperature increase, moving up from April's moderate 60.6°F (15.9°C) 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 Valley Forge, Pennsylvania, with temperature in the range of an average low of 61°F (16.1°C) and an average high of 79.2°F (26.2°C). With the transition into June, Valley Forge experiences a subtle uplift in average high-temperatures, adjusting from an agreeable 71.2°F (21.8°C) in May to a moderately hot 79.2°F (26.2°C). Weather in June »
Weather in July
July, like June, in Valley Forge, Pennsylvania, is a moderately hot summer month, with an average temperature ranging between min 66.7°F (19.3°C) and max 85.1°F (29.5°C). July is the warmest month, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 66.7°F (19.3°C). The heat index in July is computed to be a sweltering 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Valley Forge, Pennsylvania, with an average temperature fluctuating between 65.5°F (18.6°C) and 82.8°F (28.2°C). The shift to August signals an average high-temperature of a still moderately hot 82.8°F (28.2°C), subtly varied from July's 85.1°F (29.5°C). Weather in August »
Weather in September
September, the first month of the autumn in Valley Forge, is still a warm month, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 75.7°F (24.3°C). September's onset brings a negligible change in high-temperatures, falling from 82.8°F (28.2°C) in August to a still warm 75.7°F (24.3°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Valley Forge, Pennsylvania, with an average temperature varying between 48.4°F (9.1°C) and 63.5°F (17.5°C). In Valley Forge, the average high-temperature in October drops from a warm 75.7°F (24.3°C) in September 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 Valley Forge, Pennsylvania, with an average temperature ranging between max 51.1°F (10.6°C) and min 37.6°F (3.1°C). As November commences, the average high-temperature shows a reduction, transitioning from an enjoyable 63.5°F (17.5°C) in October to a cool 51.1°F (10.6°C). Weather in November »
Weather in December
December, the first month of the winter in Valley Forge, is also a wintry month, with an average temperature fluctuating between 30.9°F (-0.6°C) and 42.3°F (5.7°C). The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a cool 51.1°F (10.6°C) in November to an icy 42.3°F (5.7°C). Weather in December »
Updated: Jun 4, 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 is the coldest month?
Valley Forge experiences its average lowest temperatures in January, reaching a peak of 36°F (2.2°C) and a minimum of 23.9°F (-4.5°C).
How many days does it rain?
In Valley Forge, during the entire year, the rain falls for 132.3 days and collects up to 13.98" (355mm) of precipitation.
When does it snow in Valley Forge?
Months with snowfall are January through March, November and December.
What is the snowiest month?
The months with the most snowfall are January and February, with an average 0.59" (15mm) of accumulated snow.
How many days does it snow?
Throughout the year, there are 15.1 snowfall days, and 2.2" (56mm) of snow is accumulated.
What is the month with 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 is the most humid month?
The most humid month is February, with an average relative humidity of 80%.
What is the driest month?
February is the month with the least rainfall. Rain falls for 7.5 days and accumulates 0.75" (19mm) of precipitation.
What is the month with the least sunshine in Valley Forge?
February has the least sunshine of the year, with an average of 4.6h 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 is the least humid month?
The months with the lowest humidity are April and July, with an average relative humidity of 74%.
When it does not snow?
April through October are months without snowfall.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
With an average of 15h and 0min of daylight, June has the longest days of the year.
What time of the year is the hottest?
July is the warmest month, with the temperature often reaching an average high of 85.1°F (29.5°C) and an average low of 66.7°F (19.3°C).
What month has the most sunshine?
The month with the most sunshine in Valley Forge is July, with an average of 10.5h of sunshine.
What is the rainiest month in Valley Forge?
August is the month with the most rainfall. Rain falls for 13.5 days and accumulates 1.77" (45mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Valley Forge, PA
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure
Valley Forge, 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:
30.1"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
Valley Forge, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
8mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.6mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7.2mph - 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 (5.2mph).
Average humidity
Valley Forge, PA
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall
Valley Forge, PA
- Average rainfall in January:
0.87" - Average rainfall in February:
0.75" - Average rainfall in March:
0.87" - Average rainfall in April:
1.22" - Average rainfall in May:
1.5" - Average rainfall in June:
1.34"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.77" - Average rainfall in September:
0.91" - Average rainfall in October:
1.02" - Average rainfall in November:
1.06" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days
Valley Forge, PA
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
12.9 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
13.9 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
7 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall
Valley Forge, PA
The months with the highest snowfall are January and February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Valley Forge, PA
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.9 days - Average snowfall days in March:
2.6 days - Average snowfall days in April:
0 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:
0.3 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Valley Forge, 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:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
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 36min).
Average sunshine days
Valley Forge, PA
- Average sunshine days in January:
20.7 days - Average sunshine days in February:
16.5 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
13.1 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
17 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is June (12.8 days).
Average UV index
Valley Forge, 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
Valley Forge, PA
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Valley Forge, 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).
Valley Forge, Pennsylvania, USA
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