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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, like December, is a freezing cold winter month in Rock Glen, Pennsylvania, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 18.9°F (-7.3°C). January, on average, is the coldest month, registering a high temperature of 31.5°F (-0.3°C) and a low of 18.9°F (-7.3°C). Weather in January »
Weather in February
February, the last month of the winter in Rock Glen, is an icy month, with an average temperature varying between 35.1°F (1.7°C) and 20.7°F (-6.3°C). Upon the onset of February, Rock Glen witnesses an average high-temperature of an icy 35.1°F (1.7°C), showing a close resemblance to the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Rock Glen, Pennsylvania, with an average temperature ranging between max 43.7°F (6.5°C) and min 27.9°F (-2.3°C). March's onset brings a subtle temperature rise, moving from an icy 35.1°F (1.7°C) in February to a chilly 43.7°F (6.5°C). Weather in March »
Weather in April
April in Rock Glen, Pennsylvania, is a moderate spring month, with an average temperature fluctuating between 38.1°F (3.4°C) and 55.8°F (13.2°C). The onset of April brings a temperature shift, with the average high-temperature moving from a frosty 43.7°F (6.5°C) in March to a mild 55.8°F (13.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Rock Glen, Pennsylvania, with an average temperature ranging between max 67.1°F (19.5°C) and min 48°F (8.9°C). May sees a rise in the average high-temperature, climbing from 55.8°F (13.2°C) in April to a still refreshing 67.1°F (19.5°C). Weather in May »
Weather in June
June, the first month of the summer in Rock Glen, is a warm month, with an average temperature ranging between min 54.9°F (12.7°C) and max 74.8°F (23.8°C). June's arrival signals a modest temperature shift, moving from an enjoyable 67.1°F (19.5°C) in May to a moderately hot 74.8°F (23.8°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Rock Glen, Pennsylvania, with an average temperature ranging between min 59.5°F (15.3°C) and max 81°F (27.2°C). July brings the highest temperatures, with an average high of 81°F (27.2°C) and an average low of 59.5°F (15.3°C). Throughout July, the heat index is estimated at 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 Rock Glen, Pennsylvania, with an average temperature ranging between max 78.4°F (25.8°C) and min 57.7°F (14.3°C). Rock Glen's entry into August measures an average high-temperature of a still warm 78.4°F (25.8°C), closely parallel to the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Rock Glen, is still a pleasant month, with temperature in the range of an average low of 52°F (11.1°C) and an average high of 72°F (22.2°C). September brings a slight decrease in the average high-temperature, shifting from a warm 78.4°F (25.8°C) in August to an agreeable 72°F (22.2°C). Weather in September »
Weather in October
October, the same as September, in Rock Glen, Pennsylvania, is another mild autumn month, with an average temperature varying between 58.8°F (14.9°C) and 43.7°F (6.5°C). The beginning of October involves a decrease in the average high-temperature, transitioning from an agreeable 72°F (22.2°C) in September to a refreshing 58.8°F (14.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Rock Glen, is also a frosty month, with an average temperature fluctuating between 46.9°F (8.3°C) and 32.9°F (0.5°C). The start of November signals a decrease in the average high-temperature, transitioning from a mild 58.8°F (14.9°C) in October to a chilly 46.9°F (8.3°C). Weather in November »
Weather in December
December, the first month of the winter in Rock Glen, is also a wintry month, with temperature in the range of an average low of 26.2°F (-3.2°C) and an average high of 37.2°F (2.9°C). During Rock Glen's transition into December, the average high-temperature lessens, moving from a frosty 46.9°F (8.3°C) in November to a cold 37.2°F (2.9°C). Weather in December »
Updated: Jul 30, 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?
During the coldest month in Rock Glen, January, temperatures average a high of 31.5°F (-0.3°C) and a low of 18.9°F (-7.3°C).
How many days does it rain?
In Rock Glen, during the entire year, the rain falls for 111.5 days and collects up to 11.34" (288mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How much does it snow?
Throughout the year, there are 31.5 snowfall days, and 7.28" (185mm) of snow is accumulated.
What is the month with the lowest UV index?
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
The most humid month is February, with an average relative humidity of 84%.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 7.9 days and accumulates 1.81" (46mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 3.6h 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?
April is the least humid month, with an average relative humidity of 78%.
What is the rainiest month?
May is the month with the most rainfall. Rain falls for 13.8 days and accumulates 1.26" (32mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What is the warmest month?
In Rock Glen, the peak average temperatures are observed in July, with a high of 81°F (27.2°C) and a low of 59.5°F (15.3°C).
What month has the most sunshine?
With an average of 9.9h of sunshine, July has the most sunshine of the year.
When is the highest UV index?
With an average maximum UV index of 6, July is the month with the highest UV index.
What is the driest month?
September is the month with the least rainfall. Rain falls for 8.9 days and accumulates 0.55" (14mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Rock Glen, PA
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Rock Glen, 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:
29.98"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:
30.13"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Rock Glen, PA
- Average wind speed in January:
8.2mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.3mph - 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:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Rock Glen, PA
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (78%).
Average rainfall
Rock Glen, PA
- Average rainfall in January:
0.87" - Average rainfall in February:
0.79" - Average rainfall in March:
0.87" - Average rainfall in April:
1.14" - Average rainfall in May:
1.26" - Average rainfall in June:
0.91"
- Average rainfall in July:
1.14" - Average rainfall in August:
1.06" - Average rainfall in September:
0.55" - Average rainfall in October:
0.91" - Average rainfall in November:
0.98" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days
Rock Glen, PA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
5.9 days - Average rainfall days in March:
8.6 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
10.8 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
10.2 days - Average rainfall days in September:
8.9 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (5.4 days).
Average snowfall
Rock Glen, PA
- Average snowfall in January:
1.69" - Average snowfall in February:
1.81" - Average snowfall in March:
1.65" - Average snowfall in April:
0.08" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Rock Glen, PA
- Average snowfall days in January:
9.9 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
4.7 days - Average snowfall days in April:
0.8 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:
0.4 days - Average snowfall days in November:
2.4 days - Average snowfall days in December:
5.3 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rock Glen, 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 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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 4min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 1min - Average sunshine in May:
7h and 4min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 2min - Average sunshine in September:
8h and 2min - Average sunshine in October:
4h and 5min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days
Rock Glen, PA
- Average sunshine days in January:
18.9 days - Average sunshine days in February:
16.6 days - Average sunshine days in March:
18.8 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
16 days
- Average sunshine days in July:
16.1 days - Average sunshine days in August:
18.1 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
19.4 days - Average sunshine days in November:
20.6 days - Average sunshine days in December:
19 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is May (14.3 days).
Average UV index
Rock Glen, PA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Rock Glen, 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
Rock Glen, 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).
Rock Glen, Pennsylvania, USA
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