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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, like December, in Delta, Pennsylvania, is an icy winter month, with an average temperature fluctuating between 37.6°F (3.1°C) and 25.3°F (-3.7°C). With average high temperatures of 37.6°F (3.1°C) and lows of 25.3°F (-3.7°C), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Delta, Pennsylvania, with an average temperature fluctuating between 27.7°F (-2.4°C) and 41.5°F (5.3°C). The start of February sees the average high-temperature at a still wintry 41.5°F (5.3°C), showing little difference from January's 37.6°F (3.1°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Delta, Pennsylvania, with an average temperature fluctuating between 34.7°F (1.5°C) and 49.8°F (9.9°C). Delta's transition into March brings a slight rise in the average high-temperature, moving from an icy 41.5°F (5.3°C) in February to a chilly 49.8°F (9.9°C). Weather in March »
Weather in April
April is an enjoyable spring month in Delta, Pennsylvania, with an average temperature fluctuating between 44.8°F (7.1°C) and 61.9°F (16.6°C). As Delta, Pennsylvania, enters April, the average high-temperature increases from the a chilly 49.8°F (9.9°C) of March to a refreshing 61.9°F (16.6°C). Weather in April »
Weather in May
May, the last month of the spring in Delta, is an agreeable month, with an average temperature varying between 54.5°F (12.5°C) and 71.4°F (21.9°C). In Delta, stepping into May brings a temperature increase, moving up from April's comfortable 61.9°F (16.6°C) to a pleasant 71.4°F (21.9°C). Weather in May »
Weather in June
June, the first month of the summer in Delta, is a moderately hot month, with an average temperature ranging between min 62.2°F (16.8°C) and max 79.3°F (26.3°C). In Delta, the onset of June comes with a modest high-temperature shift, transitioning from May's pleasant 71.4°F (21.9°C) to a warm 79.3°F (26.3°C). Weather in June »
Weather in July
July, like June, in Delta, Pennsylvania, is a moderately hot summer month, with an average temperature ranging between max 84.4°F (29.1°C) and min 67.6°F (19.8°C). With average high temperatures of 84.4°F (29.1°C) and lows of 67.6°F (19.8°C), July is the warmest month. July's heat index is evaluated at a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Delta, is also a moderately hot month, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 82.2°F (27.9°C). The weather during August records an average high-temperature of a still moderately hot 82.2°F (27.9°C), closely mirroring the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Delta, Pennsylvania, with an average temperature varying between 76.1°F (24.5°C) and 59.2°F (15.1°C). September indicates a minor shift in the average high-temperature, from August's 82.2°F (27.9°C) to a still warm 76.1°F (24.5°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Delta, Pennsylvania, with temperature in the range of an average low of 49.8°F (9.9°C) and an average high of 64.8°F (18.2°C). Welcoming October, Delta observes a shift in the average high-temperature, falling from September's warm 76.1°F (24.5°C) to a refreshing 64.8°F (18.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Delta, is another cool month, with an average temperature fluctuating between 52.9°F (11.6°C) and 38.5°F (3.6°C). November involves a decrease in temperature, down from an enjoyable 64.8°F (18.2°C) in October to a cool 52.9°F (11.6°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Delta, Pennsylvania, with an average temperature varying between 43.9°F (6.6°C) and 32.2°F (0.1°C). The arrival of December signals a shift in temperature, down from a fresh 52.9°F (11.6°C) in November to a chilly 43.9°F (6.6°C). Weather in December »
Updated: Jul 22, 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 are the coldest months?
January is the coldest month of the year, registering average temperatures as high as 37.6°F (3.1°C) and as low as 25.3°F (-3.7°C).
What is the driest month?
January is the month with the least rainfall. Rain falls for 9.1 days and accumulates 2.36" (60mm) of precipitation.
How much does it rain in Delta?
Throughout the year, there are 170.1 rainfall days, and 36.42" (925mm) of precipitation is accumulated.
When does it snow?
January through May, November and December are months with snowfall in Delta.
How many days does it snow?
Throughout the year, there are 21.9 snowfall days, and 10.55" (268mm) of snow is accumulated.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Delta.
What is the month with the least sunshine?
With an average of 4.9h of sunshine, February has the least sunshine of the year.
When does it snow the most?
March is the month with the most snowfall. Snow falls for 4.7 days and accumulates 3.62" (92mm) of snow.
When is Daylight Saving Time (DST) in Delta?
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 least humid month?
April is the least humid month, with an average relative humidity of 74%.
What is the most humid month?
The most humid month is May, with an average relative humidity of 80%.
What are the months with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When it does not snow?
In Delta, Pennsylvania, snow does not fall in June through October.
When are the longest days?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What part of the year is the hottest?
The temperatures reach their highest averages in July, with highs of 84.4°F (29.1°C) and lows of 67.6°F (19.8°C).
What month has the most sunshine?
With an average of 10.7h of sunshine, July has the most sunshine of the year.
What is the rainiest month?
The month with the most rainfall is August, when the rain falls for 16.4 days and typically aggregates up to 4.49" (114mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Delta, PA
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure
Delta, PA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"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:
30.13"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
Delta, PA
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
9mph - Average wind speed in April:
8.8mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.3mph - Average wind speed in September:
6.1mph - Average wind speed in October:
7.4mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.2mph
The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Delta, PA
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Delta, PA
- Average rainfall in January:
2.36" - Average rainfall in February:
2.48" - Average rainfall in March:
2.72" - Average rainfall in April:
2.83" - Average rainfall in May:
3.43" - Average rainfall in June:
3.23"
- Average rainfall in July:
3.98" - Average rainfall in August:
4.49" - Average rainfall in September:
2.48" - Average rainfall in October:
2.76" - Average rainfall in November:
2.52" - Average rainfall in December:
3.15"
The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days
Delta, PA
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
10.2 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
19.3 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
17.5 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
14.3 days - Average rainfall days in October:
13.9 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Delta, PA
The month with the highest snowfall is March (3.62").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Delta, PA
- Average snowfall days in January:
6.8 days - Average snowfall days in February:
5.7 days - Average snowfall days in March:
4.7 days - Average snowfall days in April:
0.2 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:
0.1 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Delta, 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:
14h and 5min
- 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: 14h and 54min).
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 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Delta, PA
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
8.8 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
12.1 days - Average sunshine days in September:
13.8 days - Average sunshine days in October:
15.6 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
16.1 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.8 days).
Average UV index
Delta, 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
Delta, PA
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Delta, 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).
Delta, Pennsylvania, USA
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