Climate and monthly weather forecastFolstown, PA
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Folstown, Pennsylvania, with an average temperature varying between 18.5°F (-7.5°C) and 30.6°F (-0.8°C). January, noted for its average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 18.5°F (-7.5°C), is considered the coldest month. Weather in January »Weather in February
February, the last month of the winter in Folstown, is a cold month, with an average temperature fluctuating between 34.7°F (1.5°C) and 20.7°F (-6.3°C). Folstown ushers in February with an average high-temperature of an icy 34.7°F (1.5°C), showing a close resemblance to the previous month. Weather in February »Weather in March
March, the first month of the spring in Folstown, is a frosty month, with an average temperature ranging between min 27°F (-2.8°C) and max 43.3°F (6.3°C). As Folstown welcomes March, the average high-temperature sees a modest rise, transitioning from a wintry 34.7°F (1.5°C) in February to a frosty 43.3°F (6.3°C). Weather in March »Weather in April
April is a mild spring month in Folstown, Pennsylvania, with an average temperature varying between 55.6°F (13.1°C) and 37.6°F (3.1°C). Folstown's weather shows a temperature rise with the arrival of April, moving from a chilly 43.3°F (6.3°C) in March to a moderate 55.6°F (13.1°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Folstown, Pennsylvania, with an average temperature ranging between max 67.6°F (19.8°C) and min 47.8°F (8.8°C). Folstown in May experiences an increase in the average high-temperature, moving from April's mild 55.6°F (13.1°C) to an enjoyable 67.6°F (19.8°C). Weather in May »Weather in June
June, the first month of the summer in Folstown, is a warm month, with an average temperature ranging between max 75°F (23.9°C) and min 54.5°F (12.5°C). The commencement of June sees a minor shift in the average high-temperature, moving from a refreshing 67.6°F (19.8°C) in May to a moderately hot 75°F (23.9°C). Weather in June »Weather in July
July, like June, in Folstown, Pennsylvania, is another warm summer month, with an average temperature varying between 81°F (27.2°C) and 59°F (15°C). The month of July, characterized by an average high of 81°F (27.2°C) and a low of 59°F (15°C), is recognized as the warmest. Throughout July, the heat index is calculated to be a hot 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Folstown, Pennsylvania, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 57.2°F (14°C). The advent of August presents an average high-temperature of a still moderately hot 78.3°F (25.7°C), maintaining a close correlation with the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Folstown, Pennsylvania, with temperature in the range of an average high of 71.4°F (21.9°C) and an average low of 51.6°F (10.9°C). September indicates a minor shift in the average high-temperature, from August's moderately hot 78.3°F (25.7°C) to a pleasant 71.4°F (21.9°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Folstown, Pennsylvania, with an average temperature fluctuating between 59°F (15°C) and 42.8°F (6°C). October's arrival comes with a decrease in the average high-temperature, moving from an agreeable 71.4°F (21.9°C) in September to a refreshing 59°F (15°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Folstown, Pennsylvania, with an average temperature varying between 32.4°F (0.2°C) and 46.2°F (7.9°C). With November's arrival, Folstown sees a decrease in average high-temperatures, moving from a mild 59°F (15°C) in October to a frosty 46.2°F (7.9°C). Weather in November »Weather in December
December, the first month of the winter in Folstown, is still a cold month, with an average temperature ranging between min 25.9°F (-3.4°C) and max 36.9°F (2.7°C). Folstown in December undergoes a mild reduction in the average high-temperature, shifting from November's frosty 46.2°F (7.9°C) to a wintry 36.9°F (2.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Folstown, PA
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure
Folstown, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"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:
30.12"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
Folstown, PA
- Average wind speed in January:
8mph - Average wind speed in February:
8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.2mph - Average wind speed in December:
7.6mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Folstown, PA
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall
Folstown, PA
- Average rainfall in January:
2.09" - Average rainfall in February:
2.17" - Average rainfall in March:
2.28" - Average rainfall in April:
2.68" - Average rainfall in May:
2.87" - Average rainfall in June:
2.8"
- Average rainfall in July:
3.23" - Average rainfall in August:
3.11" - Average rainfall in September:
2.09" - Average rainfall in October:
2.56" - Average rainfall in November:
2.28" - Average rainfall in December:
2.2"
The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and September (2.09").
Average rainfall days
Folstown, PA
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
8.2 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
16.2 days - Average rainfall days in May:
19.1 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
18.6 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
14.1 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.2 days).
Average snowfall
Folstown, PA
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Folstown, PA
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
9.9 days - Average snowfall days in March:
6.6 days - Average snowfall days in April:
1.6 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:
0.2 days - Average snowfall days in November:
3 days - Average snowfall days in December:
7.8 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Folstown, PA
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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:
3h and 42min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 24min - Average sunshine in April:
7h and 18min - Average sunshine in May:
8h and 0min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 36min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 54min - Average sunshine in December:
3h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days
Folstown, PA
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
12.1 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
9.1 days - Average sunshine days in August:
12 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
15.1 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
15.4 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.1 days).
Average UV index
Folstown, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Folstown, PA
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility
Folstown, 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).





