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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 Mount Lebanon, Pennsylvania, with an average temperature varying between 21°F (-6.1°C) and 33.4°F (0.8°C). With its high average temperature of 33.4°F (0.8°C) and a low of 21°F (-6.1°C), January is regarded as the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Mount Lebanon, Pennsylvania, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 37.8°F (3.2°C). The dawn of February sees an average high-temperature of a still wintry 37.8°F (3.2°C), subtly contrasting with January's 33.4°F (0.8°C). Weather in February »
Weather in March
March, the first month of the spring in Mount Lebanon, is a chilly month, with an average temperature varying between 31.5°F (-0.3°C) and 47.8°F (8.8°C). Mount Lebanon's transition into March brings a rise in the average high-temperature, moving from a wintry 37.8°F (3.2°C) in February to a chilly 47.8°F (8.8°C). Weather in March »
Weather in April
April is a moderate spring month in Mount Lebanon, Pennsylvania, with an average temperature fluctuating between 41.4°F (5.2°C) and 60.6°F (15.9°C). The shift into April is marked by a rise in the average high-temperature, moving from March's frosty 47.8°F (8.8°C) to a refreshing 60.6°F (15.9°C). Weather in April »
Weather in May
May, the last month of the spring in Mount Lebanon, is a pleasant month, with an average temperature varying between 72.3°F (22.4°C) and 51.3°F (10.7°C). May's onset is marked by a temperature increase, moving from a mild 60.6°F (15.9°C) in April to an agreeable 72.3°F (22.4°C). Weather in May »
Weather in June
June, the first month of the summer in Mount Lebanon, is a warm month, with an average temperature fluctuating between 58.3°F (14.6°C) and 79°F (26.1°C). Mount Lebanon observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's agreeable 72.3°F (22.4°C) to a warm 79°F (26.1°C). Weather in June »
Weather in July
July, like June, in Mount Lebanon, Pennsylvania, is a moderately hot summer month, with an average temperature fluctuating between 83.7°F (28.7°C) and 62.2°F (16.8°C). July registers as the month with the highest average temperatures, reaching 83.7°F (28.7°C) at its peak and 62.2°F (16.8°C) at the lowest. Throughout July, the heat index is evaluated at a tropical 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Mount Lebanon, Pennsylvania, with an average temperature ranging between max 82.4°F (28°C) and min 60.8°F (16°C). The transition into August notes an average high-temperature of a still warm 82.4°F (28°C), revealing a mild distinction from the 83.7°F (28.7°C) in July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Mount Lebanon, Pennsylvania, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 55.8°F (13.2°C). With the arrival of September, Mount Lebanon notices a mild change in the average high-temperature, sliding from August's 82.4°F (28°C) to a still moderately hot 75.7°F (24.3°C). Weather in September »
Weather in October
October, like September, in Mount Lebanon, Pennsylvania, is another refreshing autumn month, with an average temperature varying between 45.3°F (7.4°C) and 62.1°F (16.7°C). October's onset brings a reduction in the average high-temperature, from a warm 75.7°F (24.3°C) in September to an enjoyable 62.1°F (16.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Mount Lebanon, is also a frosty month, with temperature in the range of an average low of 34.2°F (1.2°C) and an average high of 49.3°F (9.6°C). The onset of November coincides with a reduction in the average high-temperature, falling from a comfortable 62.1°F (16.7°C) in October to a chilly 49.3°F (9.6°C). Weather in November »
Weather in December
December, the first month of the winter in Mount Lebanon, is still a cold month, with an average temperature varying between 39.7°F (4.3°C) and 28.4°F (-2°C). Mount Lebanon observes a minor decrease in the average high-temperature with the arrival of December, falling from November's chilly 49.3°F (9.6°C) to a wintry 39.7°F (4.3°C). Weather in December »
Updated: Jul 22, 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 part of the year is the coldest?
January tends to be the coldest month, with temperatures averaging a daily high of 33.4°F (0.8°C) and a low of 21°F (-6.1°C).
How many days does it rain?
Throughout the year, there are 132.6 rainfall days, and 11.5" (292mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
How much does it snow in Mount Lebanon?
Throughout the year, there are 32.5 snowfall days, and 3.66" (93mm) of snow is accumulated.
What is the month with the least sunshine in Mount Lebanon?
With an average of 3h of sunshine, January has the least sunshine of the year.
What is the most humid month?
The most humid month is February, with an average relative humidity of 85%.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 7.8 days and typically aggregates up to 0.98" (25mm) of snow.
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.
When it does not snow?
May through October are months without snowfall.
When are the longest days in Mount Lebanon?
The month with the longest days in Mount Lebanon is June, with an average of 15h and 0min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year?
In Mount Lebanon, July records the average highest temperatures, peaking at 83.7°F (28.7°C) and reaching a low of 62.2°F (16.8°C).
What are the least humid months?
July and August, with an average relative humidity of 75%, are the least humid months.
What is the wettest month?
July is the month with the most rainfall. Rain falls for 15.6 days and accumulates 1.34" (34mm) of precipitation.
What month has the most sunshine?
The month with the most sunshine is August, with an average of 10.2h of sunshine.
What is the driest month?
November is the month with the least rainfall. Rain falls for 7.7 days and accumulates 0.67" (17mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
When is the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Mount Lebanon, PA
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure
Mount Lebanon, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Mount Lebanon, PA
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.4mph - Average wind speed in May:
6mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity
Mount Lebanon, PA
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall
Mount Lebanon, PA
- Average rainfall in January:
0.71" - Average rainfall in February:
0.79" - Average rainfall in March:
0.83" - Average rainfall in April:
1.22" - Average rainfall in May:
1.22" - Average rainfall in June:
1.26"
- Average rainfall in July:
1.34" - Average rainfall in August:
0.98" - Average rainfall in September:
0.79" - Average rainfall in October:
0.83" - Average rainfall in November:
0.67" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is November (0.67").
Average rainfall days
Mount Lebanon, PA
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
10 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall
Mount Lebanon, PA
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Mount Lebanon, PA
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
5 days - Average snowfall days in April:
1.3 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:
0.2 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
6.4 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Mount Lebanon, 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:
3h and 0min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days
Mount Lebanon, PA
- Average sunshine days in January:
17.6 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
15 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
13.9 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
14.1 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.2 days).
Average UV index
Mount Lebanon, PA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Mount Lebanon, PA
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Mount Lebanon, PA
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Mount Lebanon, Pennsylvania, USA
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