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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 Duncan, Pennsylvania, is another subzero cold winter month, with an average temperature varying between 28.8°F (-1.8°C) and 17.1°F (-8.3°C). During the coldest month, January, temperatures average a high of 28.8°F (-1.8°C) and a low of 17.1°F (-8.3°C). Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Duncan, Pennsylvania, with an average temperature fluctuating between 32.5°F (0.3°C) and 18.9°F (-7.3°C). February's advent denotes a minor fluctuation in the average high-temperature to an icy 32.5°F (0.3°C) from January's 28.8°F (-1.8°C). Weather in February »
Weather in March
The first month of the spring, March, is still a cold month in Duncan, Pennsylvania, with an average temperature varying between 41.5°F (5.3°C) and 25.7°F (-3.5°C). An increase in the average high-temperature marks March, moving from February's wintry 32.5°F (0.3°C) to a still icy 41.5°F (5.3°C). Weather in March »
Weather in April
April is a cool spring month in Duncan, Pennsylvania, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 54.1°F (12.3°C). April's onset is marked by a temperature increase, moving from a cold 41.5°F (5.3°C) in March to a cool 54.1°F (12.3°C). Weather in April »
Weather in May
May, the last month of the spring in Duncan, is an enjoyable month, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 67.1°F (19.5°C). With the onset of May, Duncan's weather sees a temperature rise, transitioning from a fresh 54.1°F (12.3°C) in April to a comfortable 67.1°F (19.5°C). Weather in May »
Weather in June
June, the first month of the summer in Duncan, is a moderately hot month, with an average temperature ranging between max 74.8°F (23.8°C) and min 52.5°F (11.4°C). The onset of June marks a slight increase in the average high-temperature, moving from a refreshing 67.1°F (19.5°C) in May to a warm 74.8°F (23.8°C). Weather in June »
Weather in July
July, like June, in Duncan, Pennsylvania, is another warm summer month, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 57.4°F (14.1°C). During the warmest month, July, temperatures average a high of 79.9°F (26.6°C) and a low of 57.4°F (14.1°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Duncan, Pennsylvania, with temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 77.4°F (25.2°C). Transitioning into August, Duncan records an average high-temperature of a still moderately hot 77.4°F (25.2°C), almost identical to July's 79.9°F (26.6°C). Weather in August »
Weather in September
September, the first month of the autumn in Duncan, is still a pleasant month, with an average temperature ranging between max 70.3°F (21.3°C) and min 49.8°F (9.9°C). September indicates a minor shift in the average high-temperature, from August's warm 77.4°F (25.2°C) to a pleasant 70.3°F (21.3°C). Weather in September »
Weather in October
October, the same as September, in Duncan, Pennsylvania, is another mild autumn month, with an average temperature ranging between min 41.5°F (5.3°C) and max 57.4°F (14.1°C). Duncan's October weather features a mild decline in high-temperatures, reducing from an agreeable 70.3°F (21.3°C) in September to a moderate 57.4°F (14.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Duncan, Pennsylvania, with an average temperature varying between 44.1°F (6.7°C) and 30.6°F (-0.8°C). As October transitions to November, the average high-temperature falls from a mild 57.4°F (14.1°C) to a chilly 44.1°F (6.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Duncan, Pennsylvania, with an average temperature ranging between max 34.7°F (1.5°C) and min 25.2°F (-3.8°C). Duncan's progression into December includes a drop in the average high-temperature, from a chilly 44.1°F (6.7°C) in November to a cold 34.7°F (1.5°C). Weather in December »
Updated: Aug 12, 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
What time of the year is the coldest?
The coldest month is January, with an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 17.1°F (-8.3°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 8.6 days and typically collects 1.22" (31mm) of precipitation.
How much does it rain?
Throughout the year, there are 161.9 rainfall days, and 20.04" (509mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
In Duncan, during the entire year, snow falls for 71.4 days and aggregates up to 16.54" (420mm) of snow.
When is the lowest UV index?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the most humid month?
With an average relative humidity of 86%, February is the most humid month.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 16.3 days and typically aggregates up to 4.57" (116mm) of snow.
When is Daylight Saving Time (DST)?
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?
The month with the most rainfall is April, when the rain falls for 16.4 days and typically aggregates up to 2.24" (57mm) of precipitation.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 5, are months with the highest UV index.
What is the least humid month?
June and July, with an average relative humidity of 78%, are the least humid months.
When it does not snow in Duncan?
June through September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What part of the year is the hottest?
Duncan reaches its average highest temperatures in July, measuring 79.9°F (26.6°C) at the peak and 57.4°F (14.1°C) at the lowest.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 9.8h of sunshine.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
What is the month with the least sunshine?
With an average of 3.1h of sunshine, December has the least sunshine of the year in Duncan.
Average temperature
Duncan, PA
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure
Duncan, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.06"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:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.07"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
Duncan, PA
- Average wind speed in January:
8.3mph - Average wind speed in February:
8mph - Average wind speed in March:
8mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Duncan, PA
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall
Duncan, PA
- Average rainfall in January:
1.22" - Average rainfall in February:
1.38" - Average rainfall in March:
1.46" - Average rainfall in April:
2.24" - Average rainfall in May:
2.01" - Average rainfall in June:
1.89"
The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days
Duncan, PA
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
16.4 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
14 days - Average rainfall days in November:
11.8 days - Average rainfall days in December:
11.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall
Duncan, PA
- Average snowfall in January:
3.86" - Average snowfall in February:
4.57" - Average snowfall in March:
1.61" - Average snowfall in April:
0.94" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Duncan, PA
- Average snowfall days in January:
17.8 days - Average snowfall days in February:
16.3 days - Average snowfall days in March:
10.7 days - Average snowfall days in April:
3.8 days - Average snowfall days in May:
0.5 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:
0.5 days - Average snowfall days in November:
7.5 days - Average snowfall days in December:
14.3 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Duncan, 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 4min - 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 1min
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 12min).
- Average sunshine in January:
3h and 1min - Average sunshine in February:
3h and 2min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 1min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 1min - Average sunshine in October:
4h and 5min - Average sunshine in November:
4h and 4min - Average sunshine in December:
3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days
Duncan, PA
- Average sunshine days in January:
9 days - Average sunshine days in February:
8.4 days - Average sunshine days in March:
10.5 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
13.6 days - Average sunshine days in November:
13.8 days - Average sunshine days in December:
9.2 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.4 days).
Average UV index
Duncan, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Duncan, PA
The months with the most cloud cover are January and December (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility
Duncan, PA
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
Duncan, Pennsylvania, USA
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