Climate and monthly weather forecastSummerville, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Summerville, Pennsylvania, is a freezing cold winter month, with an average temperature varying between 17.8°F (-7.9°C) and 30.2°F (-1°C). January brings the lowest temperatures, with an average high of 30.2°F (-1°C) and an average low of 17.8°F (-7.9°C). Weather in January »Weather in February
February, the last month of the winter in Summerville, is a wintry month, with an average temperature ranging between min 19.8°F (-6.8°C) and max 34°F (1.1°C). Entering February, the average high-temperature is recorded at a cold 34°F (1.1°C), exhibiting a minimal shift from January's 30.2°F (-1°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Summerville, Pennsylvania, with an average temperature varying between 27.9°F (-2.3°C) and 43.5°F (6.4°C). March sees a temperature increase, moving from a wintry 34°F (1.1°C) in February to a chilly 43.5°F (6.4°C). Weather in March »Weather in April
April is a mild spring month in Summerville, Pennsylvania, with an average temperature ranging between min 37.6°F (3.1°C) and max 56.3°F (13.5°C). With the arrival of April, the average high-temperature transitions from a frosty 43.5°F (6.4°C) in March to a refreshing 56.3°F (13.5°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Summerville, Pennsylvania, with an average temperature ranging between min 47.8°F (8.8°C) and max 68.5°F (20.3°C). Summerville's May weather shows an increase in high-temperatures, moving from April's refreshing 56.3°F (13.5°C) to a pleasant 68.5°F (20.3°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Summerville, Pennsylvania, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 75.6°F (24.2°C). With the onset of June, Summerville observes a minor temperature ascent, with the average high-temperature adjusting from May's agreeable 68.5°F (20.3°C) to a warm 75.6°F (24.2°C). Weather in June »Weather in July
July, like June, in Summerville, Pennsylvania, is a moderately hot summer month, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 58.8°F (14.9°C). With average temperatures fluctuating between a high of 80.6°F (27°C) and a low of 58.8°F (14.9°C), July stands out as the warmest month. The heat index for July is computed to be a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Summerville, is also a moderately hot month, with an average temperature fluctuating between 56.7°F (13.7°C) and 78.6°F (25.9°C). In August, Summerville notes an average high-temperature of a still moderately hot 78.6°F (25.9°C), hardly different from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Summerville, Pennsylvania, with an average temperature ranging between min 52.2°F (11.2°C) and max 72.1°F (22.3°C). With the onset of September, Summerville's average high-temperature slightly adjusts, moderately receding from August's warm 78.6°F (25.9°C) to an agreeable 72.1°F (22.3°C). Weather in September »Weather in October
October, the same as September, in Summerville, Pennsylvania, is a moderate autumn month, with an average temperature ranging between min 43.3°F (6.3°C) and max 58.6°F (14.8°C). As October arrives, Summerville's weather displays a decrease in high-temperatures, transitioning from September's agreeable 72.1°F (22.3°C) to a moderate 58.6°F (14.8°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Summerville, Pennsylvania, with temperature in the range of an average high of 45.7°F (7.6°C) and an average low of 32°F (0°C). The onset of November coincides with a reduction in the average high-temperature, falling from a refreshing 58.6°F (14.8°C) in October to a chilly 45.7°F (7.6°C). Weather in November »Weather in December
December, the first month of the winter in Summerville, is also an icy month, with an average temperature fluctuating between 36.5°F (2.5°C) and 25.5°F (-3.6°C). December brings a drop in Summerville's average high-temperature, falling from a frosty 45.7°F (7.6°C) in November to a cold 36.5°F (2.5°C). Weather in December »Updated: Aug 1, 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
January, recording an average high temperature of 30.2°F (-1°C) and a low temperature of 17.8°F (-7.9°C), is Summerville's coldest month.
Throughout the year, there are 150.5 rainfall days, and 22.05" (560mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
In Summerville, during the entire year, snow falls for 72.4 days and aggregates up to 22.28" (566mm) of snow.
January has the least sunshine of the year, with an average of 2.5h of sunshine.
The most humid month in Summerville, Pennsylvania, is February, with an average relative humidity of 88%.
February is the month with the most snowfall in Summerville. Snow falls for 15.8 days and accumulates 5.51" (140mm) 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 month with the most rainfall is April, when the rain falls for 16.1 days and typically aggregates up to 2.56" (65mm) of precipitation.
May through August, with an average maximum UV index of 5, are months with the highest UV index.
The months with the lowest humidity are June through August, with an average relative humidity of 78%.
In Summerville, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 6min of daylight.
July is the month when Summerville experiences its warmest temperatures, averaging a high of 80.6°F (27°C) and a low of 58.8°F (14.9°C).
July and August, with an average of 9.7h of sunshine, are months with the most sunshine.
The month with the least rainfall is November, when the rain falls for 8.5 days and typically collects 1.26" (32mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Summerville, PA
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30.2°F).
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Summerville, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"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
Summerville, PA
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.2mph - Average wind speed in November:
7.7mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Summerville, PA
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall
Summerville, PA
- Average rainfall in January:
1.54" - Average rainfall in February:
1.89" - Average rainfall in March:
1.57" - Average rainfall in April:
2.56" - Average rainfall in May:
2.32" - Average rainfall in June:
1.85"
- Average rainfall in July:
1.97" - Average rainfall in August:
1.46" - Average rainfall in September:
1.73" - Average rainfall in October:
2.28" - Average rainfall in November:
1.26" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days
Summerville, PA
- Average rainfall days in January:
7.2 days - Average rainfall days in February:
8 days - Average rainfall days in March:
10.9 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
17.4 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.2 days).
Average snowfall
Summerville, PA
- Average snowfall in January:
4.96" - Average snowfall in February:
5.51" - Average snowfall in March:
2.83" - Average snowfall in April:
1.3" - Average snowfall in May:
0.75" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Summerville, PA
- Average snowfall days in January:
18 days - Average snowfall days in February:
15.8 days - Average snowfall days in March:
10.8 days - Average snowfall days in April:
4.5 days - Average snowfall days in May:
0.5 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:
1.2 days - Average snowfall days in November:
8.1 days - Average snowfall days in December:
13.5 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Summerville, 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:
2h and 30min - Average sunshine in February:
2h and 48min - Average sunshine in March:
5h and 6min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 18min - Average sunshine in October:
4h and 36min - Average sunshine in November:
4h and 24min - Average sunshine in December:
2h and 42min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days
Summerville, PA
- Average sunshine days in January:
10.3 days - Average sunshine days in February:
8.1 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
11 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
15.3 days - Average sunshine days in December:
11.4 days
The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.1 days).
Average UV index
Summerville, 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
Summerville, PA
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility
Summerville, PA
The month with the highest visibility is April (6mi).
The month with the lowest visibility is February (4mi).
