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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 an icy winter month in Clairton, Pennsylvania, with an average temperature fluctuating between 33.6°F (0.9°C) and 20.7°F (-6.3°C). The month of January, characterized by an average high of 33.6°F (0.9°C) and a low of 20.7°F (-6.3°C), is recognized as the coldest. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Clairton, Pennsylvania, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 23.4°F (-4.8°C). February's advent notes a subtle adjustment in average high-temperature to a still icy 37.6°F (3.1°C) from January. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Clairton, Pennsylvania, with an average temperature varying between 47.8°F (8.8°C) and 31.3°F (-0.4°C). Clairton's weather in March shows a rise in the average high-temperature, moving up from February's cold 37.6°F (3.1°C) to a frosty 47.8°F (8.8°C). Weather in March »
Weather in April
April in Clairton, Pennsylvania, is a mild spring month, with temperature in the range of an average low of 41.4°F (5.2°C) and an average high of 60.1°F (15.6°C). With the onset of April, the average high-temperature slightly shifts from March's chilly 47.8°F (8.8°C) to a moderate 60.1°F (15.6°C). Weather in April »
Weather in May
May, the last month of the spring in Clairton, is a pleasant month, with temperature in the range of an average high of 71.8°F (22.1°C) and an average low of 51.4°F (10.8°C). With the onset of May, the average high-temperature slightly shifts from April's mild 60.1°F (15.6°C) to a pleasant 71.8°F (22.1°C). Weather in May »
Weather in June
June, the first month of the summer in Clairton, is a warm month, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 78.6°F (25.9°C). The arrival of June witnesses a small shift in the average high-temperature, moving from an agreeable 71.8°F (22.1°C) in May to a warm 78.6°F (25.9°C). Weather in June »
Weather in July
July, like June, in Clairton, Pennsylvania, is a moderately hot summer month, with an average temperature fluctuating between 82.9°F (28.3°C) and 61.5°F (16.4°C). July is the month when Clairton experiences its warmest temperatures, averaging a high of 82.9°F (28.3°C) and a low of 61.5°F (16.4°C). For most parts of July, the heat index is estimated at a tropical 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Clairton, Pennsylvania, with an average temperature fluctuating between 60.1°F (15.6°C) and 81.5°F (27.5°C). The weather during August records an average high-temperature of a still warm 81.5°F (27.5°C), closely mirroring the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Clairton, Pennsylvania, with an average temperature fluctuating between 55°F (12.8°C) and 75.4°F (24.1°C). September is characterized by a mild reduction in the average high-temperature, from a moderately hot 81.5°F (27.5°C) in August to a still warm 75.4°F (24.1°C). Weather in September »
Weather in October
October, like September, in Clairton, Pennsylvania, is another comfortable autumn month, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 62.1°F (16.7°C). The onset of October entails a temperature shift, as the average high-temperature decreases from a moderately hot 75.4°F (24.1°C) in September to an enjoyable 62.1°F (16.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Clairton, Pennsylvania, with temperature in the range of an average high of 49.5°F (9.7°C) and an average low of 34°F (1.1°C). Clairton's November weather features a mild decline in high-temperatures, reducing from a refreshing 62.1°F (16.7°C) in October to a chilly 49.5°F (9.7°C). Weather in November »
Weather in December
December, the first month of the winter in Clairton, is also an icy month, with temperature in the range of an average high of 39.6°F (4.2°C) and an average low of 28.6°F (-1.9°C). As December begins, there is a decrease in the average high-temperature, falling from a frosty 49.5°F (9.7°C) in November to an icy 39.6°F (4.2°C). Weather in December »
Updated: Jun 4, 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 is the coldest month?
January is the month when Clairton sees the average lowest temperatures, with a high of 33.6°F (0.9°C) and a low of 20.7°F (-6.3°C).
What is the driest month?
January and November are months with the least rain in Clairton when the rain falls for 9.1 days and typically aggregates up to 1.14" (29mm) of rain.
How many days does it rain?
In Clairton, during the entire year, the rain falls for 161.9 days and collects up to 19.29" (490mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 14.2 days and accumulates 2.13" (54mm) of snow.
How many days does it snow?
Throughout the year, there are 49.2 snowfall days, and 8.62" (219mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3h of sunshine.
What is the most humid month?
With an average relative humidity of 85%, February is the most humid month.
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 in Clairton?
The months with the lowest humidity are April, July and August, with an average relative humidity of 76%.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 2.28" (58mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What part of the year is the hottest?
July, recognised by an average high temperature of 82.9°F (28.3°C) and a low of 61.5°F (16.4°C), is Clairton's warmest month.
What month has the most sunshine?
With an average of 10.3h of sunshine, August has the most sunshine of the year.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
What is the month with the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Clairton, PA
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.6°F).
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure
Clairton, 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:
29.98"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
Clairton, PA
- Average wind speed in January:
8mph - Average wind speed in February:
7.8mph - 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:
5.1mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.4mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Clairton, PA
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall
Clairton, PA
- Average rainfall in January:
1.14" - Average rainfall in February:
1.3" - Average rainfall in March:
1.26" - Average rainfall in April:
1.97" - Average rainfall in May:
2.28" - Average rainfall in June:
2.2"
- Average rainfall in July:
2.13" - Average rainfall in August:
1.57" - Average rainfall in September:
1.38" - Average rainfall in October:
1.46" - Average rainfall in November:
1.14" - Average rainfall in December:
1.46"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and November (1.14").
Average rainfall days
Clairton, PA
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
11.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Clairton, PA
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Clairton, PA
- Average snowfall days in January:
14.2 days - Average snowfall days in February:
11.8 days - Average snowfall days in March:
7 days - Average snowfall days in April:
1.9 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:
4 days - Average snowfall days in December:
10.1 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Clairton, 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 3min - Average sunshine in April:
7h and 5min - 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 2min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days
Clairton, PA
- Average sunshine days in January:
11.3 days - Average sunshine days in February:
9 days - Average sunshine days in March:
11.8 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
14 days - Average sunshine days in November:
17 days - Average sunshine days in December:
12.1 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is February (9 days).
Average UV index
Clairton, PA
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Clairton, PA
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Clairton, 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).
Clairton, Pennsylvania, USA
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