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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, in Swissvale, Pennsylvania, is another cold winter month, with temperature in the range of an average high of 32.9°F (0.5°C) and an average low of 20.7°F (-6.3°C). January proves to be the coldest month, recording an average maximum temperature of 32.9°F (0.5°C) and a minimum temperature of 20.7°F (-6.3°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Swissvale, Pennsylvania, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 37°F (2.8°C). The commencement of February records an average high-temperature of a still icy 37°F (2.8°C), barely varying from January's 32.9°F (0.5°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Swissvale, Pennsylvania, with an average temperature varying between 47.3°F (8.5°C) and 31.5°F (-0.3°C). The onset of March brings a rise in the average high-temperature, elevating from an icy 37°F (2.8°C) in February to a chilly 47.3°F (8.5°C). Weather in March »
Weather in April
April is a moderate spring month in Swissvale, Pennsylvania, with an average temperature varying between 60.3°F (15.7°C) and 41.4°F (5.2°C). As Swissvale welcomes April, the average high-temperature sees a rise, transitioning from a chilly 47.3°F (8.5°C) in March to a moderate 60.3°F (15.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Swissvale, Pennsylvania, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 51.3°F (10.7°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's refreshing 60.3°F (15.7°C) to an agreeable 71.6°F (22°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Swissvale, Pennsylvania, with an average temperature fluctuating between 57.9°F (14.4°C) and 78.6°F (25.9°C). June brings a slight increase in the average high-temperature, progressing from a pleasant 71.6°F (22°C) in May to a warm 78.6°F (25.9°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Swissvale, Pennsylvania, with an average temperature varying between 83.7°F (28.7°C) and 62.1°F (16.7°C). Swissvale witnesses the warmest weather in July, with temperatures averaging a high of 83.7°F (28.7°C) and a low of 62.1°F (16.7°C). The heat index value for July is calculated to be a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Swissvale, is also a moderately hot month, with an average temperature varying between 60.8°F (16°C) and 81.9°F (27.7°C). As Swissvale, Pennsylvania, welcomes August, the average high-temperature records at a still moderately hot 81.9°F (27.7°C), marking an insignificant deviation from the prior month. Weather in August »
Weather in September
September, the first month of the autumn in Swissvale, is still a warm month, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 55.6°F (13.1°C). A modest decline in the average high-temperature is seen during September, decreasing from a warm 81.9°F (27.7°C) in August to a still moderately hot 75.6°F (24.2°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Swissvale, Pennsylvania, with an average temperature varying between 45.5°F (7.5°C) and 61.9°F (16.6°C). A shift in the average high-temperature occurs in October, reducing from a warm 75.6°F (24.2°C) in September to an enjoyable 61.9°F (16.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Swissvale, Pennsylvania, with temperature in the range of an average low of 34.2°F (1.2°C) and an average high of 49.1°F (9.5°C). The shift from October to November involves a decrease in the average high-temperature, dropping from an enjoyable 61.9°F (16.6°C) to a frosty 49.1°F (9.5°C). Weather in November »
Weather in December
December, the first month of the winter in Swissvale, is still a cold month, with an average temperature varying between 28.2°F (-2.1°C) and 39.2°F (4°C). With the onset of December, Swissvale experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 49.1°F (9.5°C) in November to a cold 39.2°F (4°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 time of the year is the coldest?
Swissvale's January weather reaches an average high of 32.9°F (0.5°C) and an average low of 20.7°F (-6.3°C), making it the coldest month.
How many days does it rain in Swissvale?
Throughout the year, there are 182.2 rainfall days, and 34.84" (885mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall in Swissvale.
What is the snowiest month?
The month with the most snowfall in Swissvale is January, when snow falls for 17.8 days and typically aggregates up to 6.42" (163mm) of snow.
How many days does it snow?
Throughout the year, there are 62.9 snowfall days, and 25.51" (648mm) of snow is accumulated.
What is the month with the least sunshine?
With an average of 2.9h 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%.
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 rainiest month?
The month with the most rainfall is May, when the rain falls for 21 days and typically aggregates up to 3.58" (91mm) of precipitation.
When it does not snow?
June through September are months without snowfall in Swissvale.
When are the longest days?
June has the longest days of the year in Swissvale, with an average of 15h and 0min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the hottest time of year?
July is the month that records the highest temperatures, with averages ranging from a high of 83.7°F (28.7°C) to a low of 62.1°F (16.7°C).
What is the least humid month?
July and August, with an average relative humidity of 75%, are the least humid months.
What month has the most sunshine?
August has the most sunshine of the year, with an average of 10.1h of sunshine.
What is the driest month in Swissvale?
The month with the least rainfall is November, when the rain falls for 11.7 days and typically collects 2.17" (55mm) 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.
What is the month with the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Swissvale, 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 (32.9°F).
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure
Swissvale, 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
Swissvale, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
7.7mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.1mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.9mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Swissvale, 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
Swissvale, PA
- Average rainfall in January:
2.48" - Average rainfall in February:
2.72" - Average rainfall in March:
2.72" - Average rainfall in April:
3.54" - Average rainfall in May:
3.58" - Average rainfall in June:
3.23"
- Average rainfall in July:
3.35" - Average rainfall in August:
2.56" - Average rainfall in September:
2.6" - Average rainfall in October:
2.99" - Average rainfall in November:
2.17" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days
Swissvale, PA
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
14.4 days - Average rainfall days in April:
17.5 days - Average rainfall days in May:
21 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
19 days - Average rainfall days in August:
17.4 days - Average rainfall days in September:
14.3 days - Average rainfall days in October:
16.5 days - Average rainfall days in November:
11.7 days - Average rainfall days in December:
12.4 days
The month with the highest number of rainy days is May (21 days).
The month with the least rainy days is February (10.4 days).
Average snowfall
Swissvale, PA
- Average snowfall in January:
6.42" - Average snowfall in February:
6.02" - Average snowfall in March:
4.21" - Average snowfall in April:
0.75" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Swissvale, PA
- Average snowfall days in January:
17.8 days - Average snowfall days in February:
14 days - Average snowfall days in March:
9.3 days - Average snowfall days in April:
2.8 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:
0.5 days - Average snowfall days in November:
5.2 days - Average snowfall days in December:
13 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Swissvale, 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:
9h and 5min - 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 18min).
- Average sunshine in January:
2h and 5min - Average sunshine in February:
3h and 3min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 1min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days
Swissvale, PA
- Average sunshine days in January:
7.4 days - Average sunshine days in February:
7.6 days - Average sunshine days in March:
9.8 days - Average sunshine days in April:
9.7 days - Average sunshine days in May:
8.9 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
10 days - Average sunshine days in August:
12.1 days - Average sunshine days in September:
13.2 days - Average sunshine days in October:
12.6 days - Average sunshine days in November:
14.8 days - Average sunshine days in December:
9.7 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is January (7.4 days).
Average UV index
Swissvale, PA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Swissvale, PA
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Swissvale, PA
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
Swissvale, Pennsylvania, USA
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