July weather forecast
Harleysville, PA

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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).

Temperature

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.

Heat index

The heat index value during July is calculated to be a hot 93.2°F (34°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', arises from combining readings of air temperature and relative moisture content. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The months with the lowest humidity in Harleysville, Pennsylvania, are April and July, with an average relative humidity of 75%.

Rainfall

July is the month with the most rainfall. Rain falls for 15.7 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

In Harleysville, Pennsylvania, snow does not fall in June through October.

Daylight

In July, the average length of the day is 14h and 43min.
On the first day of the month, sunrise is at 5:35 am and sunset at 8:35 pm. On the last day of July, in Harleysville, sunrise is at 5:59 am and sunset at 8:16 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.5h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 during July translates into the following guidance:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

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 in Harleysville.

How hot does it get in Harleysville in July?

In July, in Harleysville, the average high-temperature is 84.6°F (29.2°C), and the average low-temperature is 65.3°F (18.5°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is calculated to be 93.2°F (34°C).

What is the least humid month in Harleysville?

April and July, with an average relative humidity of 75%, are the least humid months in Harleysville, Pennsylvania.

What is the average humidity in July in Harleysville?

In July, the average relative humidity in Harleysville is 75%.

What is the wettest month in Harleysville?

The month with the most rainfall in Harleysville is July, when the rain falls for 15.7 days and typically aggregates up to 1.97" (50mm) of precipitation.

How many days does it rain in July in Harleysville?

In Harleysville, Pennsylvania, in July, during 15.7 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow in Harleysville?

June through October are months without snowfall in Harleysville.

How many hours of daylight does Harleysville have in July?

In July, the average day length is 14h and 43min.

When is the sunrise / sunset in July in Harleysville?

In July, on the first day of the month, sunrise is at 5:35 am and sunset at 8:35 pm. On the last day of the month, in Harleysville, sunrise is at 5:59 am and sunset at 8:16 pm EDT.

What month has the most sunshine in Harleysville?

With an average of 10.5h of sunshine, July has the most sunshine of the year in Harleysville, Pennsylvania.

How long on average sun shines in July in Harleysville?

In July, the average sunshine duration is 10.5h.

What are the months with the highest UV index in Harleysville?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Harleysville, Pennsylvania.

What is the UV index reading in July in Harleysville?

In Harleysville, Pennsylvania, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Harleysville, PA

Average temperature in July - Harleysville, PA
  • Average high temperature in July: 84.6°F

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).

  • Average low temperature in July: 65.3°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).

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Average pressure in July
Harleysville, PA

Average pressure in July - Harleysville, PA
  • Average pressure in July: 29.96"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).

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Average wind speed in July
Harleysville, PA

Average wind speed in July - Harleysville, PA
  • Average wind speed in July: 5.2mph

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).

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Average humidity in July
Harleysville, PA

Average humidity in July - Harleysville, PA
  • Average humidity in July: 75%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).

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Average rainfall in July
Harleysville, PA

Average rainfall in July - Harleysville, PA
  • Average rainfall in July: 1.97"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.87").

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Average rainfall days in July
Harleysville, PA

Average rainfall days in July - Harleysville, PA
  • Average rainfall days in July: 15.7 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).

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Average snowfall in July
Harleysville, PA

Average snowfall in July - Harleysville, PA
  • Average snowfall in July: 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").

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Average snowfall days in July
Harleysville, PA

Average snowfall days in July - Harleysville, PA
  • Average snowfall days in July: 0 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).

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Average daylight in July /
Average sunshine in July
Harleysville, PA

Average daylight in July / Average sunshine in July - Harleysville, PA
  • Average daylight in July: 14h and 4min

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 July: 10h and 3min

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).

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Average sunshine days in July
Harleysville, PA

Average sunshine days in July - Harleysville, PA
  • Average sunshine days in July: 12.8 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).

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Average UV index in July
Harleysville, PA

Average UV index in July - Harleysville, PA
  • Average UV index in July: 6

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).

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Average cloud cover in July
Harleysville, PA

Average cloud cover in July - Harleysville, PA
  • Average cloud cover in July: 32

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in July
Harleysville, PA

Average visibility in July - Harleysville, PA
  • Average visibility in July: 6mi

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).

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Harleysville, Pennsylvania, USA

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