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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 Cornwall, Pennsylvania, with an average temperature ranging between min 21.6°F (-5.8°C) and max 33.8°F (1°C). The month of January, characterized by an average high of 33.8°F (1°C) and a low of 21.6°F (-5.8°C), is recognized as the coldest. Weather in January »
Weather in February
February, the last month of the winter in Cornwall, is also a wintry month, with an average temperature ranging between max 37.9°F (3.3°C) and min 23.5°F (-4.7°C). During February, the average high-temperature is a still wintry 37.9°F (3.3°C), maintaining a close resemblance to that of the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Cornwall, Pennsylvania, with an average temperature fluctuating between 31.1°F (-0.5°C) and 46.9°F (8.3°C). March comes with an increase, with the average high-temperature moving from an icy 37.9°F (3.3°C) in February to a chilly 46.9°F (8.3°C). Weather in March »
Weather in April
April in Cornwall, Pennsylvania, is a moderate spring month, with an average temperature ranging between min 41.4°F (5.2°C) and max 59.4°F (15.2°C). April sees a temperature increase, moving from a chilly 46.9°F (8.3°C) in March to a refreshing 59.4°F (15.2°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Cornwall, Pennsylvania, with an average temperature fluctuating between 68.7°F (20.4°C) and 51.1°F (10.6°C). May's onset brings a rise in the average high-temperature, moving from a refreshing 59.4°F (15.2°C) in April to an agreeable 68.7°F (20.4°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Cornwall, Pennsylvania, with an average temperature ranging between min 58.6°F (14.8°C) and max 76.6°F (24.8°C). In Cornwall, the average high-temperature in June slightly increases from an agreeable 68.7°F (20.4°C) in May to a warm 76.6°F (24.8°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Cornwall, Pennsylvania, with an average temperature varying between 63.1°F (17.3°C) and 82°F (27.8°C). Cornwall, Pennsylvania, notes the warmest temperatures in July, with a high average of 82°F (27.8°C) and a low of 63.1°F (17.3°C). In July, the heat index is calculated to be a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Cornwall, is another warm month, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 79.9°F (26.6°C). With the start of August, Cornwall measures an average high-temperature of a still warm 79.9°F (26.6°C), not significantly differing from July's 82°F (27.8°C). Weather in August »
Weather in September
September, the first month of the autumn in Cornwall, is also a moderately hot month, with temperature in the range of an average high of 73.8°F (23.2°C) and an average low of 55.4°F (13°C). Cornwall's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 79.9°F (26.6°C) to a still warm 73.8°F (23.2°C). Weather in September »
Weather in October
October, like September, in Cornwall, Pennsylvania, is another comfortable autumn month, with an average temperature fluctuating between 61.7°F (16.5°C) and 46°F (7.8°C). The arrival of October corresponds with a temperature reduction, down from September's warm 73.8°F (23.2°C) to a comfortable 61.7°F (16.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Cornwall, Pennsylvania, with an average temperature ranging between min 34.9°F (1.6°C) and max 49.5°F (9.7°C). In November, the average high-temperature goes from an enjoyable 61.7°F (16.5°C) in October to a frosty 49.5°F (9.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Cornwall, Pennsylvania, with temperature in the range of an average high of 40.3°F (4.6°C) and an average low of 29.3°F (-1.5°C). Cornwall's weather changes with the onset of December, slightly falling from a frosty 49.5°F (9.7°C) in November to a cold 40.3°F (4.6°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Cornwall?
January, characterized by an average high temperature of 33.8°F (1°C) and a low temperature of 21.6°F (-5.8°C), is generally the coldest month in Cornwall.
How many days does it rain in Cornwall?
Throughout the year, in Cornwall, Pennsylvania, there are 137.4 rainfall days, and 16.26" (413mm) of precipitation is accumulated.
When does it snow in Cornwall?
Months with snowfall are January through May, October through December.
When does it snow the most in Cornwall?
January is the month with the most snowfall in Cornwall. Snow falls for 5.2 days and accumulates 1.97" (50mm) of snow.
How many days does it snow in Cornwall?
Throughout the year, there are 19.5 snowfall days, and 6.69" (170mm) of snow is accumulated.
What is the month with the lowest UV index in Cornwall?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month in Cornwall?
February, May and October, with an average relative humidity of 81%, are most humid months.
What is the driest month in Cornwall?
February is the month with the least rainfall in Cornwall. Rain falls for 7.8 days and accumulates 0.94" (24mm) of precipitation.
What is the month with the least sunshine in Cornwall?
The month with the least sunshine in Cornwall is February, with an average of 4.5h of sunshine.
When is Daylight Saving Time (DST) in Cornwall?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Cornwall, 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 Cornwall?
April is the least humid month, with an average relative humidity of 76%.
What is the month with the highest UV index in Cornwall?
The months with the highest UV index in Cornwall, Pennsylvania, are May through July, with an average maximum UV index of 6.
When it does not snow in Cornwall?
June through September are months without snowfall in Cornwall, Pennsylvania.
When are the longest days in Cornwall?
With an average of 15h and 0min of daylight, June has the longest days of the year.
What are the warmest months in Cornwall?
July, marked by an average high-temperature of 82°F (27.8°C) and a low-temperature of 63.1°F (17.3°C), is the warmest month in Cornwall, Pennsylvania.
What month has the most sunshine in Cornwall?
The month with the most sunshine in Cornwall is July, with an average of 10.4h of sunshine.
What is the wettest month in Cornwall?
August is the month with the most rainfall in Cornwall, Pennsylvania. Rain falls for 14.7 days and accumulates 2.13" (54mm) of precipitation.
What is the month with the shortest days in Cornwall?
With an average of 9h and 24min of daylight, December has the shortest days of the year in Cornwall, Pennsylvania.
Average temperature
Cornwall, PA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Cornwall, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"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:
29.97"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"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 (29.94"Hg).
Average wind speed
Cornwall, PA
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.6mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6.1mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Cornwall, PA
The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Cornwall, PA
- Average rainfall in January:
1.06" - Average rainfall in February:
0.94" - Average rainfall in March:
1.18" - Average rainfall in April:
1.26" - Average rainfall in May:
1.61" - Average rainfall in June:
1.38"
- Average rainfall in July:
1.93" - Average rainfall in August:
2.13" - Average rainfall in September:
1.02" - Average rainfall in October:
1.42" - Average rainfall in November:
1.22" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days
Cornwall, PA
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
10.9 days - Average rainfall days in April:
12.7 days - Average rainfall days in May:
15.9 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
14.7 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
11.4 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.7 days).
Average snowfall
Cornwall, PA
- Average snowfall in January:
1.97" - Average snowfall in February:
1.5" - Average snowfall in March:
1.65" - Average snowfall in April:
0.04" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Cornwall, PA
- Average snowfall days in January:
5.2 days - Average snowfall days in February:
5.1 days - Average snowfall days in March:
4.2 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.2 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:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
3.3 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 and September (0 days).
Average daylight / Average sunshine
Cornwall, 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 4min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Cornwall, PA
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.7 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (11.5 days).
Average UV index
Cornwall, PA
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Cornwall, PA
The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Cornwall, PA
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).
Cornwall, Pennsylvania, USA
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