Climate and monthly weather forecastWinterstown, PA
Climate and monthly weather forecast
Weather in January
January, like December, in Winterstown, Pennsylvania, is an icy winter month, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 35.8°F (2.1°C). Winterstown witnesses the coldest weather in January, with temperatures averaging a high of 35.8°F (2.1°C) and a low of 23.4°F (-4.8°C). Weather in January »Weather in February
February, the last month of the winter in Winterstown, is also an icy month, with an average temperature fluctuating between 25.2°F (-3.8°C) and 39.4°F (4.1°C). At the start of February, Winterstown's average high-temperature reaches a still wintry 39.4°F (4.1°C), subtly different from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Winterstown, Pennsylvania, with an average temperature ranging between max 48.2°F (9°C) and min 32.9°F (0.5°C). The shift from February to March sees a slight increase in the average high-temperature, transitioning from an icy 39.4°F (4.1°C) to a chilly 48.2°F (9°C). Weather in March »Weather in April
April is a moderate spring month in Winterstown, Pennsylvania, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 42.8°F (6°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 a refreshing 60.4°F (15.8°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Winterstown, Pennsylvania, with an average temperature varying between 70.3°F (21.3°C) and 52.9°F (11.6°C). The arrival of May brings a change in Winterstown's weather, with average high-temperatures moving from April's refreshing 60.4°F (15.8°C) to an agreeable 70.3°F (21.3°C). Weather in May »Weather in June
June, the first month of the summer in Winterstown, is a moderately hot month, with an average temperature fluctuating between 60.4°F (15.8°C) and 77.9°F (25.5°C). June signals a minor shift in the average high-temperature, moving from May's agreeable 70.3°F (21.3°C) to a warm 77.9°F (25.5°C). Weather in June »Weather in July
July, like June, in Winterstown, Pennsylvania, is a moderately hot summer month, with an average temperature varying between 65.5°F (18.6°C) and 83.5°F (28.6°C). Winterstown's temperatures tend to reach their peak averages in July, with a high of 83.5°F (28.6°C) and a low of 65.5°F (18.6°C). For July, the heat index is appraised at a hot 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Winterstown, is also a moderately hot month, with an average temperature fluctuating between 63.9°F (17.7°C) and 81°F (27.2°C). Winterstown's average high-temperature in August is a still moderately hot 81°F (27.2°C), indicating a subtle variation from July. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Winterstown, Pennsylvania, with an average temperature fluctuating between 57.2°F (14°C) and 75°F (23.9°C). September brings a slight decrease in temperature, down from 81°F (27.2°C) in August to a still warm 75°F (23.9°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Winterstown, Pennsylvania, with an average temperature fluctuating between 47.5°F (8.6°C) and 63.1°F (17.3°C). As Winterstown enters October, the average high-temperature decreases from the a moderately hot 75°F (23.9°C) of September to a comfortable 63.1°F (17.3°C). Weather in October »Weather in November
November, the last month of the autumn in Winterstown, is another cool month, with an average temperature varying between 36.3°F (2.4°C) and 50.9°F (10.5°C). A subtle decrease in the average high-temperature marks November, falling from October's refreshing 63.1°F (17.3°C) to a fresh 50.9°F (10.5°C). Weather in November »Weather in December
December, the first month of the winter in Winterstown, is still a cold month, with temperature in the range of an average low of 30.4°F (-0.9°C) and an average high of 41.9°F (5.5°C). As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a fresh 50.9°F (10.5°C) to a wintry 41.9°F (5.5°C). Weather in December »Updated: Jul 28, 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 month of January sees the average lowest temperatures, reaching 35.8°F (2.1°C) at the peak and 23.4°F (-4.8°C) at the low.
In Winterstown, during the entire year, the rain falls for 139.8 days and collects up to 22.95" (583mm) of precipitation.
Months with snowfall are January through May, October through December.
Throughout the year, there are 18.4 snowfall days, and 9.13" (232mm) of snow is accumulated.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
February is the month with the least rainfall in Winterstown, Pennsylvania. Rain falls for 6.7 days and accumulates 1.26" (32mm) of precipitation.
February has the least sunshine of the year, with an average of 4.7h of sunshine.
March, April and November, with an average relative humidity of 76%, are the least humid months.
The month with the most snowfall is March, when snow falls for 4.5 days and typically aggregates up to 3.23" (82mm) 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.
The most humid month is May, with an average relative humidity of 81%.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
In Winterstown, snow does not fall in June through September.
The month with the longest days is June, with an average of 14h and 54min of daylight.
July, with its high-temperature average of 83.5°F (28.6°C) and a low-temperature average of 65.5°F (18.6°C), is the warmest month.
The month with the most sunshine is July, with an average of 10.6h of sunshine.
August is the month with the most rainfall. Rain falls for 15 days and accumulates 2.8" (71mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Winterstown, PA
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.8°F).
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Winterstown, PA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"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:
29.97"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Winterstown, PA
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.7mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8.2mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Winterstown, PA
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are March, April and November (76%).
Average rainfall
Winterstown, PA
- Average rainfall in January:
1.38" - Average rainfall in February:
1.26" - Average rainfall in March:
1.69" - Average rainfall in April:
1.89" - Average rainfall in May:
2.24" - Average rainfall in June:
2.01"
- Average rainfall in July:
2.36" - Average rainfall in August:
2.8" - Average rainfall in September:
1.61" - Average rainfall in October:
2.09" - Average rainfall in November:
2.01" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days
Winterstown, PA
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
15.9 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
15 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
8.7 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.3 days).
Average snowfall
Winterstown, PA
- Average snowfall in January:
2.13" - Average snowfall in February:
1.65" - Average snowfall in March:
3.23" - Average snowfall in April:
0.2" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Winterstown, PA
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
5 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
0.6 days - Average snowfall days in May:
0.1 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:
0.8 days - Average snowfall days in December:
3 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Winterstown, 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:
14h and 54min
- 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: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 24min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Winterstown, PA
- Average sunshine days in January:
20.4 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
14 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
13.1 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
18.6 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is May (11.7 days).
Average UV index
Winterstown, 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, November and December (UV index 2).
Average cloud cover
Winterstown, PA
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Winterstown, 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).
