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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 Irwin, Pennsylvania, is another cold winter month, with an average temperature varying between 20.7°F (-6.3°C) and 33.6°F (0.9°C). The month of January sees the lowest average temperatures, reaching 33.6°F (0.9°C) at the peak and 20.7°F (-6.3°C) at the low. Weather in January »
Weather in February
February, the last month of the winter in Irwin, is another cold month, with an average temperature ranging between max 37.6°F (3.1°C) and min 23.4°F (-4.8°C). The dawn of February sees an average high-temperature of a still wintry 37.6°F (3.1°C), subtly contrasting with January's 33.6°F (0.9°C). Weather in February »
Weather in March
March, the first month of the spring in Irwin, is a chilly month, with temperature in the range of an average low of 31.3°F (-0.4°C) and an average high of 47.8°F (8.8°C). The average high-temperature increases in March, moving from an icy 37.6°F (3.1°C) in February to a frosty 47.8°F (8.8°C). Weather in March »
Weather in April
April in Irwin, Pennsylvania, is a mild spring month, with an average temperature varying between 41.4°F (5.2°C) and 60.1°F (15.6°C). As April arrives, a rise in the average high-temperature is observed, moving from a chilly 47.8°F (8.8°C) in March to a moderate 60.1°F (15.6°C). Weather in April »
Weather in May
May, the last month of the spring in Irwin, is a pleasant month, with an average temperature ranging between max 71.8°F (22.1°C) and min 51.4°F (10.8°C). As April gives way to May, the average high-temperature displays an increase, moving from a mild 60.1°F (15.6°C) to a pleasant 71.8°F (22.1°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Irwin, Pennsylvania, with an average temperature ranging between min 57.7°F (14.3°C) and max 78.6°F (25.9°C). June's arrival brings a slight change in high-temperatures, adjusting from a pleasant 71.8°F (22.1°C) in May to a moderately hot 78.6°F (25.9°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Irwin, Pennsylvania, with temperature in the range of an average low of 61.5°F (16.4°C) and an average high of 82.9°F (28.3°C). July is the warmest month, exhibiting average temperatures of 82.9°F (28.3°C) at the peak and 61.5°F (16.4°C) at the base. In July, the average heat index is calculated to be a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Irwin, is another warm month, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 81.5°F (27.5°C). As August takes hold, the average high-temperature is a still warm 81.5°F (27.5°C), nearly mirroring that of the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Irwin, is still a warm month, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 55°F (12.8°C). With the onset of September, Irwin experiences a modest temperature adjustment, with the average high-temperature gently receding 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 Irwin, Pennsylvania, is another comfortable autumn month, with temperature in the range of an average high of 62.1°F (16.7°C) and an average low of 45.3°F (7.4°C). The transition into October involves a decrease in the average high-temperature, falling from a warm 75.4°F (24.1°C) in September to a comfortable 62.1°F (16.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Irwin, is another chilly month, with an average temperature varying between 34°F (1.1°C) and 49.5°F (9.7°C). November's onset corresponds with a shift in the average high-temperature, moving from a comfortable 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 Irwin, is also a wintry month, with an average temperature fluctuating between 28.6°F (-1.9°C) and 39.6°F (4.2°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 49.5°F (9.7°C) to an icy 39.6°F (4.2°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Irwin?
January is the month when Irwin 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 in Irwin?
The months with the least rainfall in Irwin, Pennsylvania, are January and November Rain falls for 9.1 days and accumulates 1.14" (29mm) of rain.
How many days does it rain in Irwin?
Throughout the year, in Irwin, Pennsylvania, there are 161.9 rainfall days, and 19.29" (490mm) of precipitation is accumulated.
When does it snow in Irwin?
January through April, October through December are months with snowfall in Irwin, Pennsylvania.
What is the snowiest month in Irwin?
The month with the most snowfall is January, when snow falls for 14.2 days and typically aggregates up to 2.13" (54mm) of snow.
How much does it snow in Irwin?
In Irwin, Pennsylvania, during the entire year, snow falls for 49.2 days and aggregates up to 8.62" (219mm) of snow.
What is the month with the least sunshine in Irwin?
The month with the least sunshine in Irwin, Pennsylvania, is January, with an average of 3h of sunshine.
What is the most humid month in Irwin?
The most humid month in Irwin, Pennsylvania, is February, with an average relative humidity of 85%.
When is Daylight Saving Time (DST) in Irwin?
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 are the least humid months in Irwin?
The months with the lowest humidity are April, July and August, with an average relative humidity of 76%.
What is the wettest month in Irwin?
The month with the most rainfall in Irwin 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 in Irwin?
In Irwin, snow does not fall in May through September.
What is the month with the highest UV index in Irwin?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Irwin?
With an average of 15h and 0min of daylight, June has the longest days of the year.
What month is the hottest in Irwin?
July, with its high-temperature average of 82.9°F (28.3°C) and a low-temperature average of 61.5°F (16.4°C), is the warmest month in Irwin, Pennsylvania.
What month has the most sunshine in Irwin?
August has the most sunshine of the year in Irwin, with an average of 10.3h of sunshine.
What is the month with the shortest days in Irwin?
With an average of 9h and 24min of daylight, December has the shortest days of the year in Irwin, Pennsylvania.
When is the lowest UV index in Irwin?
With an average maximum UV index of 1, December is the month with the lowest UV index in Irwin.
Average temperature
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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
Irwin, 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).
Irwin, Pennsylvania, USA
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