July weather forecast
Harrisburg, PA

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A church, a mosque, and other buildings along State Street in Harrisburg, Pennsylvania
A church, a mosque, and other buildings along State Street in Harrisburg, Pennsylvania

Weather in July

With July arrives the peak of the summer heat in Harrisburg, denoting pool days, picnics, and cookouts. In terms of temperature, July tops the chart with highs averaging at 83.8°F (28.8°C), making it the warmest month. Evening walks, riverboat cruises, and dining under the stars are common activities during this time. Families flock to nearby parks to enjoy the vibrant landscapes under the blazing sun. Despite the heat, July is a lively month offering lots of attractions and activities.

Temperature

Harrisburg's temperatures tend to reach their peak averages in July, with a high of 83.8°F (28.8°C) and a low of 63.5°F (17.5°C).

Heat index

July's average heat index is appraised at a hot 91.4°F (33°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

The average relative humidity in July is 76%.

Rainfall

In Harrisburg, in July, during 13.8 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, there are 122.3 rainfall days, and 11.73" (298mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Harrisburg, Pennsylvania, the average length of the day in July is 14h and 43min.
On the first day of July, sunrise is at 5:41 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:22 pm EDT.

Sunshine

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

UV index

May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In July, the maximum UV index of 6 suggests this advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

What is the warmest month in Harrisburg?

July temperatures tend to peak at an average high of 83.8°F (28.8°C) and dip to a low of 63.5°F (17.5°C).

How hot is July in Harrisburg?

In Harrisburg, 83.8°F (28.8°C) is the average high-temperature and 63.5°F (17.5°C) is the average low-temperature during July. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 91.4°F (33°C).

What is the average humidity in July in Harrisburg?

The average relative humidity in July in Harrisburg, Pennsylvania, is 76%.

How many days does it rain in July in Harrisburg?

In Harrisburg, Pennsylvania, in July, it is raining for 13.8 days, with typically 1.26" (32mm) of accumulated precipitation.

When it does not snow in Harrisburg?

In Harrisburg, Pennsylvania, snow does not fall in May through October.

How many hours of daylight does Harrisburg have in July?

The average day length in July in Harrisburg, Pennsylvania, is 14h and 43min.

When are sunrise and sunset in July in Harrisburg?

On the first day of July in Harrisburg, Pennsylvania, sunrise is at 5:41 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:22 pm EDT.

What month has the most sunshine in Harrisburg?

July has the most sunshine of the year in Harrisburg, with an average of 10.5h of sunshine.

How long on average sun shines in July in Harrisburg?

The average sunshine duration in July in Harrisburg is 10.5h.

When is the highest UV index in Harrisburg?

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

What is the UV index intensity in July in Harrisburg?

In July, the average daily maximum UV index in Harrisburg, Pennsylvania, is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Harrisburg, PA

Average temperature in July - Harrisburg, PA
  • Average high temperature in July: 83.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in July: 63.5°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

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Average pressure in July
Harrisburg, PA

Average pressure in July - Harrisburg, PA
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in July
Harrisburg, PA

Average wind speed in July - Harrisburg, PA
  • Average wind speed in July: 4.8mph

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in July
Harrisburg, PA

Average humidity in July - Harrisburg, PA
  • Average humidity in July: 76%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).

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Average rainfall in July
Harrisburg, PA

Average rainfall in July - Harrisburg, PA
  • Average rainfall in July: 1.26"

The wettest month (with the highest rainfall) is August (1.3").
The driest months (with the least rainfall) are January and February (0.71").

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Average rainfall days in July
Harrisburg, PA

Average rainfall days in July - Harrisburg, PA
  • Average rainfall days in July: 13.8 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall in July
Harrisburg, PA

Average snowfall in July - Harrisburg, PA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Harrisburg, PA

Average snowfall days in July - Harrisburg, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Harrisburg, 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 30min).

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Average sunshine days in July
Harrisburg, PA

Average sunshine days in July - Harrisburg, PA
  • Average sunshine days in July: 14.1 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.1 days).

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Average UV index in July
Harrisburg, PA

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

The months with the highest UV index are May, June and July (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
Harrisburg, PA

Average cloud cover in July - Harrisburg, PA
  • Average cloud cover in July: 31

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in July
Harrisburg, PA

Average visibility in July - Harrisburg, 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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Harrisburg, Pennsylvania, USA

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