Climate and monthly weather forecastCornwell, PA
Climate and monthly weather forecast
Weather in January
January, like December, in Cornwell, Pennsylvania, is another cold winter month, with an average temperature ranging between max 37.4°F (3°C) and min 25.2°F (-3.8°C). January, known for its average high temperature of 37.4°F (3°C) and an average low temperature of 25.2°F (-3.8°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Cornwell, Pennsylvania, with an average temperature varying between 41°F (5°C) and 27.5°F (-2.5°C). Cornwell experiences a recorded average high-temperature of a still cold 41°F (5°C) in February, closely aligned with January's 37.4°F (3°C). Weather in February »Weather in March
March, the first month of the spring in Cornwell, is a frosty month, with an average temperature fluctuating between 49.3°F (9.6°C) and 34.5°F (1.4°C). As March begins, there's a slight increase in the average high-temperature, moving from a cold 41°F (5°C) in February to a chilly 49.3°F (9.6°C). Weather in March »Weather in April
April is an enjoyable spring month in Cornwell, Pennsylvania, with an average temperature varying between 61.7°F (16.5°C) and 44.2°F (6.8°C). April brings a rise in Cornwell's average high-temperature, moving from a chilly 49.3°F (9.6°C) in March to an enjoyable 61.7°F (16.5°C). Weather in April »Weather in May
May, the last month of the spring in Cornwell, is a pleasant month, with an average temperature fluctuating between 54.5°F (12.5°C) and 71.8°F (22.1°C). With the onset of May, Cornwell's average high-temperature sees a rise, moving from April's comfortable 61.7°F (16.5°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 warm month in Cornwell, Pennsylvania, with an average temperature ranging between min 62.8°F (17.1°C) and max 80.2°F (26.8°C). With the onset of June, Cornwell's average high-temperature sees a modest rise, moving from May's agreeable 71.8°F (22.1°C) to a warm 80.2°F (26.8°C). Weather in June »Weather in July
July in Cornwell, Pennsylvania, is a hot summer month, with an average temperature varying between 86.4°F (30.2°C) and 68.9°F (20.5°C). July is the month when Cornwell, Pennsylvania, experiences its warmest temperatures, averaging a high of 86.4°F (30.2°C) and a low of 68.9°F (20.5°C). For July, the heat index is evaluated at a fiery hot 96.8°F (36°C). Weather in July »Weather in August
August, the last month of the summer in Cornwell, is also a moderately hot month, with an average temperature fluctuating between 84.2°F (29°C) and 67.6°F (19.8°C). The average high-temperature during August is a warm 84.2°F (29°C), almost matching the conditions of the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Cornwell, is still a warm month, with temperature in the range of an average low of 60.3°F (15.7°C) and an average high of 77°F (25°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from 84.2°F (29°C) in August to a still moderately hot 77°F (25°C). Weather in September »Weather in October
October, like September, in Cornwell, Pennsylvania, is another comfortable autumn month, with an average temperature ranging between max 64.9°F (18.3°C) and min 50.2°F (10.1°C). In the transition to October, Cornwell observes a drop in the average high-temperature, moving from a moderately hot 77°F (25°C) in September to an enjoyable 64.9°F (18.3°C). Weather in October »Weather in November
November, the last month of the autumn in Cornwell, is also a fresh month, with temperature in the range of an average high of 52.7°F (11.5°C) and an average low of 38.8°F (3.8°C). Cornwell in November undergoes a mild reduction in the average high-temperature, shifting from October's comfortable 64.9°F (18.3°C) to a fresh 52.7°F (11.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Cornwell, Pennsylvania, with temperature in the range of an average high of 43.7°F (6.5°C) and an average low of 32.5°F (0.3°C). The start of December signals a decrease in the average high-temperature, transitioning from a cool 52.7°F (11.5°C) in November to a frosty 43.7°F (6.5°C). Weather in December »Updated: Feb 13, 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
The coldest month is January, with an average high-temperature of 37.4°F (3°C) and an average low-temperature of 25.2°F (-3.8°C).
The month with the least rainfall is January, when the rain falls for 7.9 days and typically collects 1.89" (48mm) of precipitation.
In Cornwell, during the entire year, the rain falls for 153.8 days and collects up to 30.94" (786mm) of precipitation.
Months with snowfall are January through May, November and December.
In Cornwell, Pennsylvania, during the entire year, snow falls for 16.8 days and aggregates up to 8.5" (216mm) of snow.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Cornwell.
February and October, with an average relative humidity of 77%, are most humid months.
With an average of 4.7h of sunshine, February has the least sunshine of the year.
The month with the most snowfall in Cornwell is March, when snow falls for 3.3 days and typically aggregates up to 2.76" (70mm) of snow.
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.
April, July and August, with an average relative humidity of 71%, are the least humid months.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Cornwell, Pennsylvania.
In Cornwell, Pennsylvania, snow does not fall in June through October.
The month with the longest days is June, with an average of 15h and 0min of daylight.
With average high and low temperatures of 86.4°F (30.2°C) and 68.9°F (20.5°C) respectively, July is Cornwell's warmest month.
The month with the most rainfall is July, when the rain falls for 18.5 days and typically aggregates up to 3.39" (86mm) of precipitation.
July has the most sunshine of the year in Cornwell, Pennsylvania, with an average of 10.5h of sunshine.
The month with the shortest days in Cornwell, Pennsylvania, is December, with an average of 9h and 24min of daylight.
Average temperature
Cornwell, PA
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°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 (25.2°F).
Average pressure
Cornwell, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"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 (29.93"Hg).
Average wind speed
Cornwell, PA
- Average wind speed in January:
8.2mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.5mph - Average wind speed in December:
7.7mph
The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity
Cornwell, PA
The months with the highest relative humidity are February and October (77%).
The months with the lowest relative humidity are April, July and August (71%).
Average rainfall
Cornwell, PA
- Average rainfall in January:
1.89" - Average rainfall in February:
2.13" - Average rainfall in March:
2.6" - Average rainfall in April:
2.52" - Average rainfall in May:
2.8" - Average rainfall in June:
2.68"
- Average rainfall in July:
3.39" - Average rainfall in August:
3.35" - Average rainfall in September:
2.01" - Average rainfall in October:
2.4" - Average rainfall in November:
2.17" - Average rainfall in December:
3.03"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days
Cornwell, PA
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
12.2 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
16 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (7.5 days).
Average snowfall
Cornwell, PA
- Average snowfall in January:
1.61" - Average snowfall in February:
2.24" - Average snowfall in March:
2.76" - Average snowfall in April:
0.24" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Cornwell, PA
- Average snowfall days in January:
5.2 days - Average snowfall days in February:
4.6 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.4 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in December:
2.7 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Cornwell, PA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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:
5h and 0min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Cornwell, PA
- Average sunshine days in January:
19.5 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
16.4 days - Average sunshine days in April:
14.2 days - Average sunshine days in May:
11.9 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
10.4 days - Average sunshine days in August:
13 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
21.2 days - Average sunshine days in December:
19 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (10.4 days).
Average UV index
Cornwell, 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, March, November and December (UV index 2).
Average cloud cover
Cornwell, PA
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
Cornwell, PA
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
