July weather forecast and climate
Harrisburg, PA

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
July, the same as June, is another warm summer month in Harrisburg, Pennsylvania, with average temperature ranging between max 83.8°F (28.8°C) and min 63.5°F (17.5°C).

Temperature

With an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63.5°F (17.5°C), July is the warmest month.

Heat index

In July, the average heat index is appraised at a hot 92.1°F (33.4°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Harrisburg, the average relative humidity is 76%.

Rainfall

In Harrisburg, during July, the rain falls for 13.8 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, in Harrisburg, there are 122.3 rainfall days, and 11.73" (298mm) of precipitation is accumulated.

Snowfall

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

Daylight

In July, the average length of the day in Harrisburg is 14.7h.

Sunshine

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

UV index

Months with the highest UV index are May through July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the warmest month in Harrisburg?

July is the warmest month in Harrisburg, Pennsylvania, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63.5°F (17.5°C).

What is the temperature in July in Harrisburg?

In Harrisburg, in July, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 63.5°F (17.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that represents influence of the relative humidity to air temperaure, in July is appraised at 92.1°F (33.4°C).

What is the average humidity in July in Harrisburg?

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

How much does it rain in Harrisburg in July?

In Harrisburg, during July, the rain falls for 13.8 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When it does not snow in Harrisburg?

May through October are months without snowfall in Harrisburg.

What is the average length of the day in July in Harrisburg?

In July, the average length of the day is 14.7h.

What month has the most sunshine in Harrisburg?

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

How long on average sun shines in July in Harrisburg?

In July, the average sunshine in Harrisburg, Pennsylvania, is 10.5h.

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

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

How high is the UV index in July in Harrisburg?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in July - Harrisburg, PA
  • Average high temperature in July: 28.8°C

The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (1.7°C).

  • Average low temperature in July: 17.5°C

The month with the highest average low temperature is July (17.5°C).
The coldest month (with the lowest average low temperature) is January (-5.5°C).

Average pressure in July - Harrisburg, PA
  • Average pressure in July: 1015mbar

The month with the highest atmospheric pressure is November (1020.4mbar).
The month with the lowest atmospheric pressure is June (1014.1mbar).

Average wind speed in July - Harrisburg, PA
  • Average wind speed in July: 7.8km/h

The windiest month (with the highest average wind speed) is March (13.2km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).

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

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

Average rainfall in July - Harrisburg, PA
  • Average rainfall in July: 32mm

The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are January and February (18mm).

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).

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

The month with the highest snowfall is February (33mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in July / Average sunshine in July - Harrisburg, PA
  • Average daylight in July: 14.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in July: 10.5h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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).

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

Months with the highest UV index are May, June and July (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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

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).

Average visibility in July - Harrisburg, PA
  • Average visibility in July: 9km

Months with the highest visibility are January, February, March, April, June, July, August, October, November and December (9km).
Months with the lowest visibility are May and September (8km).