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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 another cold winter month in Rosemont, Pennsylvania, with temperature in the range of an average high of 36.7°F (2.6°C) and an average low of 25°F (-3.9°C). January, with average temperatures reaching a high of 36.7°F (2.6°C) and a low of 25°F (-3.9°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Rosemont, is also an icy month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 40.3°F (4.6°C). February's presence records an average high-temperature of a still cold 40.3°F (4.6°C), closely mirroring January's climate. Weather in February »
Weather in March
March, the first month of the spring in Rosemont, is a frosty month, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 49.1°F (9.5°C). March brings a slight rise in Rosemont's average high-temperature, moving from an icy 40.3°F (4.6°C) in February to a chilly 49.1°F (9.5°C). Weather in March »
Weather in April
April is a comfortable spring month in Rosemont, Pennsylvania, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 44.2°F (6.8°C). Rosemont's transition into April is marked by a rise in the average high-temperature, advancing from a chilly 49.1°F (9.5°C) in March to a refreshing 61.2°F (16.2°C). Weather in April »
Weather in May
May, the last month of the spring in Rosemont, is an agreeable month, with an average temperature ranging between min 54.3°F (12.4°C) and max 71.8°F (22.1°C). The start of May is characterized by an increase in the average high-temperature, transitioning from a refreshing 61.2°F (16.2°C) in April to an agreeable 71.8°F (22.1°C). Weather in May »
Weather in June
June, the first month of the summer in Rosemont, is a moderately hot month, with an average temperature ranging between min 62.6°F (17°C) and max 79.9°F (26.6°C). June signifies a subtle uplift in the average high-temperature, adjusting from a pleasant 71.8°F (22.1°C) in May to a warm 79.9°F (26.6°C). Weather in June »
Weather in July
July, like June, in Rosemont, Pennsylvania, is a moderately hot summer month, with an average temperature varying between 85.8°F (29.9°C) and 68.9°F (20.5°C). July brings the highest temperatures, with an average high of 85.8°F (29.9°C) and an average low of 68.9°F (20.5°C). The heat index for July is evaluated at a sweltering 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Rosemont, Pennsylvania, with an average temperature fluctuating between 67.5°F (19.7°C) and 83.7°F (28.7°C). August's presence marks an average high-temperature of a still warm 83.7°F (28.7°C), subtly varied from July's 85.8°F (29.9°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Rosemont, Pennsylvania, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 76.5°F (24.7°C). A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 83.7°F (28.7°C) to a still moderately hot 76.5°F (24.7°C). Weather in September »
Weather in October
October, like September, in Rosemont, Pennsylvania, is another refreshing autumn month, with an average temperature fluctuating between 50°F (10°C) and 64.2°F (17.9°C). October's onset brings a slight change in high-temperatures, falling from a moderately hot 76.5°F (24.7°C) in September to a refreshing 64.2°F (17.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Rosemont, Pennsylvania, with an average temperature ranging between min 38.3°F (3.5°C) and max 52°F (11.1°C). The onset of November introduces a moderate change in Rosemont's weather, with average high-temperatures falling from October's enjoyable 64.2°F (17.9°C) to a cool 52°F (11.1°C). Weather in November »
Weather in December
December, the first month of the winter in Rosemont, is also a frosty month, with an average temperature varying between 32°F (0°C) and 43.2°F (6.2°C). The average high-temperature slightly decreases in December, shifting from a fresh 52°F (11.1°C) in November to a frosty 43.2°F (6.2°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Rosemont?
January, with its average high-temperature of 36.7°F (2.6°C) and an average low-temperature of 25°F (-3.9°C), holds the record as the coldest month in Rosemont.
What is the driest month in Rosemont?
The month with the least rainfall in Rosemont is January, when the rain falls for 5.3 days and typically collects 0.55" (14mm) of precipitation.
How many days does it rain in Rosemont?
In Rosemont, Pennsylvania, during the entire year, the rain falls for 111.8 days and collects up to 9.69" (246mm) of precipitation.
When does it snow in Rosemont?
January through March, November and December are months with snowfall.
How many days does it snow in Rosemont?
In Rosemont, Pennsylvania, during the entire year, snow falls for 15.1 days and aggregates up to 3.66" (93mm) of snow.
What are the months with the lowest UV index in Rosemont?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rosemont, Pennsylvania.
What is the most humid month in Rosemont?
The months with the highest humidity are February and October, with an average relative humidity of 78%.
When does it snow the most in Rosemont?
The months with the most snowfall in Rosemont are February and March, with an average 0.98" (25mm) of accumulated snow.
What is the month with the least sunshine in Rosemont?
With an average of 4.6h of sunshine, February has the least sunshine of the year in Rosemont.
When is Daylight Saving Time (DST) in Rosemont?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rosemont, Pennsylvania, 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 Rosemont?
The months with the lowest humidity in Rosemont, Pennsylvania, are April, July and August, with an average relative humidity of 71%.
When it does not snow in Rosemont?
April through October are months without snowfall in Rosemont, Pennsylvania.
When is the highest UV index in Rosemont?
The months with the highest UV index in Rosemont, Pennsylvania, are May through August, with an average maximum UV index of 6.
When are the longest days in Rosemont?
June has the longest days of the year in Rosemont, with an average of 15h and 0min of daylight.
What month is the hottest in Rosemont?
In Rosemont, July records the average highest temperatures, peaking at 85.8°F (29.9°C) and reaching a low of 68.9°F (20.5°C).
What is the rainiest month in Rosemont?
The wettest months in Rosemont, Pennsylvania, are July and August, with an average 1.14" (29mm) of rainfall.
What month has the most sunshine in Rosemont?
The month with the most sunshine is July, with an average of 10.6h of sunshine.
What is the month with the shortest days in Rosemont?
December has the shortest days of the year in Rosemont, with an average of 9h and 24min of daylight.
Average temperature
Rosemont, PA
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (36.7°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Rosemont, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Rosemont, PA
- Average wind speed in January:
8.2mph - Average wind speed in February:
8.2mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.4mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.9mph - Average wind speed in October:
7mph - Average wind speed in November:
7.4mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Rosemont, PA
The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (71%).
Average rainfall
Rosemont, PA
- Average rainfall in January:
0.55" - Average rainfall in February:
0.63" - Average rainfall in March:
0.79" - Average rainfall in April:
0.75" - Average rainfall in May:
0.91" - Average rainfall in June:
0.98"
- Average rainfall in July:
1.14" - Average rainfall in August:
1.14" - Average rainfall in September:
0.63" - Average rainfall in October:
0.63" - Average rainfall in November:
0.63" - Average rainfall in December:
0.91"
The wettest months (with the highest rainfall) are July and August (1.14").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Rosemont, PA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
8.7 days - Average rainfall days in April:
10.7 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
12 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
8.3 days - Average rainfall days in November:
5.9 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall
Rosemont, PA
The months with the highest snowfall are February and March (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Rosemont, PA
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
4.4 days - Average snowfall days in March:
3.1 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
2.1 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Rosemont, 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:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Rosemont, PA
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
19.2 days - Average sunshine days in April:
17.5 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
14.9 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
22.5 days - Average sunshine days in December:
22.2 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (14.9 days).
Average UV index
Rosemont, PA
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Rosemont, PA
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Rosemont, PA
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Rosemont, Pennsylvania, USA
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