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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 Upper Darby, Pennsylvania, is an icy winter month, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 37.4°F (3°C). January brings the lowest temperatures, with an average high of 37.4°F (3°C) and an average low of 25.7°F (-3.5°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Upper Darby, Pennsylvania, with an average temperature varying between 28°F (-2.2°C) and 41.4°F (5.2°C). February observes an average high-temperature of a still wintry 41.4°F (5.2°C), marking an insignificant difference from January's 37.4°F (3°C). Weather in February »
Weather in March
March, the first month of the spring in Upper Darby, is a frosty month, with an average temperature ranging between min 35.1°F (1.7°C) and max 49.8°F (9.9°C). Upper Darby in March denotes a subtle temperature transition, adjusting from an average high of a wintry 41.4°F (5.2°C) in February to a chilly 49.8°F (9.9°C). Weather in March »
Weather in April
April in Upper Darby, Pennsylvania, is an enjoyable spring month, with an average temperature varying between 61.7°F (16.5°C) and 45°F (7.2°C). As March gives way to April, the average high-temperature displays an increase, moving from a frosty 49.8°F (9.9°C) to a comfortable 61.7°F (16.5°C). Weather in April »
Weather in May
May, the last month of the spring in Upper Darby, is an agreeable month, with an average temperature ranging between max 72°F (22.2°C) and min 54.7°F (12.6°C). As May arrives, a rise in the average high-temperature is observed, moving from an enjoyable 61.7°F (16.5°C) in April to a pleasant 72°F (22.2°C). Weather in May »
Weather in June
June, the first month of the summer in Upper Darby, is a warm month, with an average temperature varying between 63.1°F (17.3°C) and 79.9°F (26.6°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from a pleasant 72°F (22.2°C) in May to a warm 79.9°F (26.6°C). Weather in June »
Weather in July
July is a hot summer month in Upper Darby, Pennsylvania, with an average temperature fluctuating between 86°F (30°C) and 68.5°F (20.3°C). July is the warmest month, exhibiting average temperatures of 86°F (30°C) at the peak and 68.5°F (20.3°C) at the base. The heat index value for July is evaluated at a torrid 96.8°F (36°C). Weather in July »
Weather in August
August, the last month of the summer in Upper Darby, is also a moderately hot month, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 67.6°F (19.8°C). Shifting into August, Upper Darby records an average high-temperature of a moderately hot 83.7°F (28.7°C), presenting minor fluctuations compared to the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Upper Darby, is also a moderately hot month, with an average temperature varying between 60.8°F (16°C) and 76.6°F (24.8°C). The average high-temperature slightly decreases in September, shifting from a warm 83.7°F (28.7°C) in August to a still moderately hot 76.6°F (24.8°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Upper Darby, Pennsylvania, with an average temperature varying between 65.1°F (18.4°C) and 50.9°F (10.5°C). During Upper Darby's transition into October, the average high-temperature lessens, moving from a warm 76.6°F (24.8°C) in September to a refreshing 65.1°F (18.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Upper Darby, is another cool month, with an average temperature varying between 52.7°F (11.5°C) and 39.2°F (4°C). November involves a decrease in temperature, down from a comfortable 65.1°F (18.4°C) in October to a fresh 52.7°F (11.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Upper Darby, Pennsylvania, with an average temperature varying between 44.1°F (6.7°C) and 32.7°F (0.4°C). A mild shift in the average high-temperature occurs in December, reducing from a fresh 52.7°F (11.5°C) in November to a frosty 44.1°F (6.7°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Upper Darby?
With average temperatures fluctuating between a high of 37.4°F (3°C) and a low of 25.7°F (-3.5°C), January stands out as the coldest month in Upper Darby, Pennsylvania.
What is the driest month in Upper Darby?
The month with the least rainfall is January, when the rain falls for 6.6 days and typically collects 1.46" (37mm) of precipitation.
How many days does it rain in Upper Darby?
Throughout the year, in Upper Darby, there are 142 rainfall days, and 24.41" (620mm) of precipitation is accumulated.
When does it snow in Upper Darby?
Months with snowfall are January through April, November and December.
How many days does it snow in Upper Darby?
In Upper Darby, during the entire year, snow falls for 11.3 days and aggregates up to 6.18" (157mm) of snow.
When is the lowest UV index in Upper Darby?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the most humid month in Upper Darby?
The months with the highest humidity in Upper Darby, Pennsylvania, are February, October and December, with an average relative humidity of 77%.
What is the month with the least sunshine in Upper Darby?
With an average of 4.9h of sunshine, February has the least sunshine of the year.
When does it snow the most in Upper Darby?
March is the month with the most snowfall. Snow falls for 2.8 days and accumulates 2.05" (52mm) of snow.
When is Daylight Saving Time (DST) in Upper Darby?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Upper Darby, 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 Upper Darby?
April is the least humid month in Upper Darby, with an average relative humidity of 71%.
When it does not snow in Upper Darby?
May through October are months without snowfall.
What is the month with the highest UV index in Upper Darby?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Upper Darby.
When are the longest days in Upper Darby?
June has the longest days of the year in Upper Darby, with an average of 15h and 0min of daylight.
What is the hottest time of year in Upper Darby?
The warmest time of the year is July, with temperatures averaging a high of 86°F (30°C) and a low of 68.5°F (20.3°C).
What month has the most sunshine in Upper Darby?
July has the most sunshine of the year in Upper Darby, Pennsylvania, with an average of 10.7h of sunshine.
What is the rainiest month in Upper Darby?
August is the month with the most rainfall in Upper Darby, Pennsylvania. Rain falls for 15.3 days and accumulates 2.95" (75mm) of precipitation.
What is the month with the shortest days in Upper Darby?
The month with the shortest days in Upper Darby, Pennsylvania, is December, with an average of 9h and 24min of daylight.
Average temperature
Upper Darby, PA
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.4°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure
Upper Darby, 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
Upper Darby, PA
- Average wind speed in January:
8.4mph - Average wind speed in February:
8.5mph - 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:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.2mph - Average wind speed in November:
7.6mph - Average wind speed in December:
7.8mph
The windiest months (with the highest average wind speed) are February, March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Upper Darby, PA
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Upper Darby, PA
- Average rainfall in January:
1.46" - Average rainfall in February:
1.57" - Average rainfall in March:
2.13" - Average rainfall in April:
2.01" - Average rainfall in May:
2.01" - Average rainfall in June:
2.2"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.95" - Average rainfall in September:
1.57" - Average rainfall in October:
1.85" - Average rainfall in November:
1.77" - Average rainfall in December:
2.4"
The wettest month (with the highest rainfall) is August (2.95").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days
Upper Darby, PA
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
8 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall
Upper Darby, PA
The month with the highest snowfall is March (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Upper Darby, PA
- Average snowfall days in January:
3.3 days - Average snowfall days in February:
3.1 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.2 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:
0.4 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Upper Darby, 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:
5h and 0min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - 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
Upper Darby, PA
- Average sunshine days in January:
20.8 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
16.1 days - Average sunshine days in May:
14.2 days - Average sunshine days in June:
12.6 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (12.1 days).
Average UV index
Upper Darby, 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
Upper Darby, PA
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
Upper Darby, PA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Upper Darby, Pennsylvania, USA
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