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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 Harleysville, Pennsylvania, with an average temperature fluctuating between 35.2°F (1.8°C) and 22.8°F (-5.1°C). The coldest time of the year is January, with temperatures averaging a high of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Harleysville, Pennsylvania, with an average temperature ranging between max 38.8°F (3.8°C) and min 25°F (-3.9°C). As Harleysville steps into February, the average high-temperature is measured at a still icy 38.8°F (3.8°C), displaying minor differences from January's 35.2°F (1.8°C). Weather in February »
Weather in March
March, the first month of the spring in Harleysville, is a chilly month, with an average temperature varying between 47.5°F (8.6°C) and 32°F (0°C). Entering March, Harleysville notices a subtle temperature elevation, with the average high-temperature advancing from February's cold 38.8°F (3.8°C) to a frosty 47.5°F (8.6°C). Weather in March »
Weather in April
April in Harleysville, Pennsylvania, is a refreshing spring month, with an average temperature fluctuating between 60.1°F (15.6°C) and 42.1°F (5.6°C). As Harleysville transitions into April, a rise in the average high-temperature is observed, moving from a frosty 47.5°F (8.6°C) in March to a moderate 60.1°F (15.6°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Harleysville, Pennsylvania, with an average temperature varying between 52°F (11.1°C) and 70.7°F (21.5°C). May's onset witnesses a shift in the average high-temperature, moving from a mild 60.1°F (15.6°C) in April to a pleasant 70.7°F (21.5°C). Weather in May »
Weather in June
June, the first month of the summer in Harleysville, is a warm month, with an average temperature ranging between min 59.5°F (15.3°C) and max 78.8°F (26°C). With the transition into June, Harleysville experiences a subtle uplift in average high-temperatures, adjusting from a pleasant 70.7°F (21.5°C) in May to a moderately hot 78.8°F (26°C). Weather in June »
Weather in July
July, like June, in Harleysville, Pennsylvania, is another warm summer month, with an average temperature varying between 84.6°F (29.2°C) and 65.3°F (18.5°C). The average temperatures reach their apex in July, averaging 84.6°F (29.2°C) at the high end and 65.3°F (18.5°C) at the low end. The heat index value during July is calculated to be a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Harleysville, is also a moderately hot month, with an average temperature varying between 63.7°F (17.6°C) and 81.9°F (27.7°C). Transitioning from July to August, Harleysville observes an average high-temperature of a still moderately hot 81.9°F (27.7°C), differing subtly from the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Harleysville, Pennsylvania, with an average temperature varying between 57.2°F (14°C) and 75.4°F (24.1°C). The onset of September is marked by a minor decrease in temperature, transitioning from 81.9°F (27.7°C) in August to a still warm 75.4°F (24.1°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Harleysville, Pennsylvania, with an average temperature varying between 63.1°F (17.3°C) and 47.3°F (8.5°C). The shift from September to October involves a decrease in the average high-temperature, dropping from a warm 75.4°F (24.1°C) to an enjoyable 63.1°F (17.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Harleysville, Pennsylvania, with an average temperature fluctuating between 36.5°F (2.5°C) and 50.9°F (10.5°C). With November's arrival, Harleysville's weather changes as the average high-temperature falls from a refreshing 63.1°F (17.3°C) in October to a cool 50.9°F (10.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Harleysville, Pennsylvania, with an average temperature varying between 30.4°F (-0.9°C) and 41.5°F (5.3°C). With December's arrival, Harleysville sees a decrease in average high-temperatures, moving from a fresh 50.9°F (10.5°C) in November to a cold 41.5°F (5.3°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Harleysville?
January stands out as Harleysville's coldest month, with temperatures ranging between an average high of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C).
What is the driest month in Harleysville?
January is the month with the least rainfall. Rain falls for 5.7 days and accumulates 0.87" (22mm) of precipitation.
How much does it rain in Harleysville?
In Harleysville, Pennsylvania, during the entire year, the rain falls for 128.6 days and collects up to 15.16" (385mm) of precipitation.
When does it snow in Harleysville?
January through May, November and December are months with snowfall in Harleysville, Pennsylvania.
How many days does it snow in Harleysville?
Throughout the year, there are 17 snowfall days, and 5.43" (138mm) of snow is accumulated.
When is the lowest UV index in Harleysville?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Harleysville.
What is the most humid month in Harleysville?
With an average relative humidity of 81%, February is the most humid month in Harleysville.
What is the month with the least sunshine in Harleysville?
With an average of 4.6h of sunshine, February has the least sunshine of the year in Harleysville, Pennsylvania.
When does it snow the most in Harleysville?
March is the month with the most snowfall in Harleysville. Snow falls for 3.8 days and accumulates 1.46" (37mm) of snow.
When is Daylight Saving Time (DST) in Harleysville?
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 are the least humid months in Harleysville?
The months with the lowest humidity in Harleysville are April and July, with an average relative humidity of 75%.
What are the months with the highest UV index in Harleysville?
The months with the highest UV index in Harleysville, Pennsylvania, are May through August, with an average maximum UV index of 6.
When it does not snow in Harleysville?
June through October are months without snowfall.
When are the longest days in Harleysville?
With an average of 15h and 0min of daylight, June has the longest days of the year in Harleysville.
What is the warmest month in Harleysville?
July, with its average high-temperature of 84.6°F (29.2°C) and an average low-temperature of 65.3°F (18.5°C), holds the record as the warmest month.
What is the wettest month in Harleysville?
The month with the most rainfall is July, when the rain falls for 15.7 days and typically aggregates up to 1.97" (50mm) of precipitation.
What month has the most sunshine in Harleysville?
With an average of 10.5h of sunshine, July has the most sunshine of the year.
What is the month with the shortest days in Harleysville?
The month with the shortest days in Harleysville, Pennsylvania, is December, with an average of 9h and 24min of daylight.
Average temperature
Harleysville, PA
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure
Harleysville, 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:
30.06"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
Harleysville, PA
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Harleysville, PA
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall
Harleysville, PA
- Average rainfall in January:
0.87" - Average rainfall in February:
0.91" - Average rainfall in March:
1.18" - Average rainfall in April:
1.18" - Average rainfall in May:
1.38" - Average rainfall in June:
1.46"
- Average rainfall in July:
1.97" - Average rainfall in August:
1.81" - Average rainfall in September:
0.91" - Average rainfall in October:
1.14" - Average rainfall in November:
1.02" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days
Harleysville, PA
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
10.1 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
14 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
11 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
7.1 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (5.7 days).
Average snowfall
Harleysville, PA
- Average snowfall in January:
1.06" - Average snowfall in February:
1.14" - Average snowfall in March:
1.46" - Average snowfall in April:
0.12" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Harleysville, PA
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.3 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:
0.6 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Harleysville, 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 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
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 36min).
Average sunshine days
Harleysville, PA
- Average sunshine days in January:
20.7 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.6 days - Average sunshine days in April:
16.3 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
20.1 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (12.8 days).
Average UV index
Harleysville, 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
Harleysville, PA
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Harleysville, 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).
Harleysville, Pennsylvania, USA
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