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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, in Lemont, Pennsylvania, is another subzero cold winter month, with an average temperature varying between 18.7°F (-7.4°C) and 31.1°F (-0.5°C). With average high and low temperatures of 31.1°F (-0.5°C) and 18.7°F (-7.4°C) respectively, January is Lemont's coldest month. Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Lemont, Pennsylvania, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 21°F (-6.1°C). February's weather records an average high-temperature of a cold 35.2°F (1.8°C), showing little deviation from January. Weather in February »
Weather in March
March, the first month of the spring in Lemont, is a chilly month, with temperature in the range of an average low of 28.4°F (-2°C) and an average high of 44.8°F (7.1°C). March indicates a change in the average high-temperature, moving up from a wintry 35.2°F (1.8°C) in February to a frosty 44.8°F (7.1°C). Weather in March »
Weather in April
April in Lemont, Pennsylvania, is a moderate spring month, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 57°F (13.9°C). With the onset of April, Lemont sees a temperature rise, with the average high-temperature moving from March's chilly 44.8°F (7.1°C) to a refreshing 57°F (13.9°C). Weather in April »
Weather in May
May, the last month of the spring in Lemont, is a pleasant month, with an average temperature fluctuating between 48.2°F (9°C) and 69.1°F (20.6°C). An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a moderate 57°F (13.9°C) to an agreeable 69.1°F (20.6°C). Weather in May »
Weather in June
June, the first month of the summer in Lemont, is a moderately hot month, with temperature in the range of an average high of 77°F (25°C) and an average low of 55°F (12.8°C). In June, the average high-temperature marginally rises from a pleasant 69.1°F (20.6°C) in May to a moderately hot 77°F (25°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Lemont, Pennsylvania, with an average temperature fluctuating between 59.2°F (15.1°C) and 82.2°F (27.9°C). Temperature records mark July as the warmest month, with highs averaging 82.2°F (27.9°C) and lows at 59.2°F (15.1°C). In July, the heat index is appraised at a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Lemont, Pennsylvania, with an average temperature fluctuating between 79.9°F (26.6°C) and 57.4°F (14.1°C). As Lemont welcomes August, the average high-temperature records at a still moderately hot 79.9°F (26.6°C), marking an insignificant deviation from the prior month. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Lemont, Pennsylvania, with an average temperature fluctuating between 72.5°F (22.5°C) and 52.2°F (11.2°C). The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 79.9°F (26.6°C) to a pleasant 72.5°F (22.5°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in Lemont, Pennsylvania, with an average temperature fluctuating between 43.2°F (6.2°C) and 59.9°F (15.5°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a pleasant 72.5°F (22.5°C) in September to a moderate 59.9°F (15.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Lemont, is also a frosty month, with an average temperature varying between 46.8°F (8.2°C) and 32.4°F (0.2°C). November's arrival comes with a decrease in the average high-temperature, moving from a mild 59.9°F (15.5°C) in October to a chilly 46.8°F (8.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Lemont, Pennsylvania, with an average temperature varying between 36.9°F (2.7°C) and 26.4°F (-3.1°C). December involves a decrease in temperature, down from a frosty 46.8°F (8.2°C) in November to a cold 36.9°F (2.7°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Lemont?
Lemont, Pennsylvania, records the coldest temperatures in January, averaging a high of 31.1°F (-0.5°C) and a low of 18.7°F (-7.4°C).
How many days does it rain in Lemont?
In Lemont, Pennsylvania, during the entire year, the rain falls for 175.7 days and collects up to 30.94" (786mm) of precipitation.
When does it snow in Lemont?
January through May, October through December are months with snowfall in Lemont, Pennsylvania.
How many days does it snow in Lemont?
In Lemont, during the entire year, snow falls for 59 days and aggregates up to 26.3" (668mm) of snow.
What is the month with the least sunshine in Lemont?
With an average of 3.6h of sunshine, January has the least sunshine of the year.
What is the most humid month in Lemont?
February and December, with an average relative humidity of 84%, are most humid months in Lemont.
What is the snowiest month in Lemont?
The month with the most snowfall in Lemont is February, when snow falls for 14 days and typically aggregates up to 6.77" (172mm) of snow.
When is Daylight Saving Time (DST) in Lemont?
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 wettest month in Lemont?
May is the month with the most rainfall in Lemont, Pennsylvania. Rain falls for 19.4 days and accumulates 3.5" (89mm) of precipitation.
What is the month with the highest UV index in Lemont?
The months with the highest UV index in Lemont are May through August, with an average maximum UV index of 5.
When it does not snow in Lemont?
June through September are months without snowfall.
When are the longest days in Lemont?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What part of the year is the hottest in Lemont?
July is the warmest month of the year in Lemont, registering average temperatures as high as 82.2°F (27.9°C) and as low as 59.2°F (15.1°C).
What is the least humid month in Lemont?
The least humid month is July, with an average relative humidity of 76%.
What month has the most sunshine in Lemont?
With an average of 10.1h of sunshine, July has the most sunshine of the year.
What is the driest month in Lemont?
November is the month with the least rainfall. Rain falls for 12.3 days and accumulates 2.01" (51mm) of precipitation.
What is the month with the shortest days in Lemont?
With an average of 9h and 18min of daylight, December has the shortest days of the year in Lemont, Pennsylvania.
What is the month with the lowest UV index in Lemont?
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Lemont, PA
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.1°F).
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure
Lemont, PA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"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:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"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
Lemont, PA
- Average wind speed in January:
8mph - Average wind speed in February:
7.7mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.3mph - Average wind speed in June:
6mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.5mph - 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 (4.8mph).
Average humidity
Lemont, PA
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (76%).
Average rainfall
Lemont, PA
- Average rainfall in January:
2.28" - Average rainfall in February:
2.32" - Average rainfall in March:
2.44" - Average rainfall in April:
3.23" - Average rainfall in May:
3.5" - Average rainfall in June:
2.6"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.32" - Average rainfall in September:
2.24" - Average rainfall in October:
2.76" - Average rainfall in November:
2.01" - Average rainfall in December:
2.52"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days
Lemont, PA
- Average rainfall days in January:
10.5 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
17.8 days - Average rainfall days in May:
19.4 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
13.8 days - Average rainfall days in October:
14.8 days - Average rainfall days in November:
12.3 days - Average rainfall days in December:
12.6 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (9.8 days).
Average snowfall
Lemont, PA
- Average snowfall in January:
6.57" - Average snowfall in February:
6.77" - Average snowfall in March:
4.29" - Average snowfall in April:
0.79" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Lemont, PA
- Average snowfall days in January:
15.3 days - Average snowfall days in February:
14 days - Average snowfall days in March:
9.3 days - Average snowfall days in April:
2.1 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:
0.8 days - Average snowfall days in November:
5.7 days - Average snowfall days in December:
11.5 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Lemont, 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 5min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 1min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days
Lemont, PA
- Average sunshine days in January:
9.5 days - Average sunshine days in February:
8.5 days - Average sunshine days in March:
10.5 days - Average sunshine days in April:
10 days - Average sunshine days in May:
9.2 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
14.5 days - Average sunshine days in December:
12 days
The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is February (8.5 days).
Average UV index
Lemont, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Lemont, PA
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility
Lemont, PA
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Lemont, Pennsylvania, USA
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