Harrisburg
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast

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, like June, in Harrisburg, Pennsylvania, is a moderately hot summer month, with temperature in the range of an average high of 85.5°F (29.7°C) and an average low of 66.4°F (19.1°C).

Temperature

The warmest month is July, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 66.4°F (19.1°C).

Heat index

The average heat index in July is estimated at a tropical 93.2°F (34°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like pregnancy, metabolic differences, differences in body mass, height, and shape, and activity influence one's weather impression. 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 particularly important for children. 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 July, the average relative humidity is 68.6%.

Rainfall

The month with the most rainfall in Harrisburg is July when the rain falls for 10.7 days and typically aggregates up to 4.6" (117.1mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

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

Sunshine

July has the most sunshine of the year in Harrisburg, with an average of 10h of sunshine.

UV index

Months with the highest UV index in Harrisburg are June and July, with an average maximum UV index of 9. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 9 interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the warmest month in Harrisburg?

With an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 66.4°F (19.1°C), July is the warmest month in Harrisburg.

What is the temperature in July in Harrisburg?

In July, in Harrisburg, Pennsylvania, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 66.4°F (19.1°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 93.2°F (34°C).

What is the average humidity in July in Harrisburg?

In July, the average relative humidity in Harrisburg is 68.6%.

How many days does it rain in July in Harrisburg?

In Harrisburg, in July, during 10.7 rainfall days, 4.6" (117.1mm) of precipitation is typically accumulated.

What is the rainiest month in Harrisburg?

July is the month with the most rainfall. Rain falls for 10.7 days and accumulates 4.6" (117.1mm) of precipitation.

When it does not snow in Harrisburg?

May through October are months without snowfall in Harrisburg, Pennsylvania.

How many hours of daylight does Harrisburg have in July?

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

What month has the most sunshine in Harrisburg?

July has the most sunshine of the year in Harrisburg, Pennsylvania, with an average of 10h of sunshine.

How long on average sun shines in July in Harrisburg?

In Harrisburg, Pennsylvania, the average sunshine in July is 10h.

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

June and July, with an average maximum UV index of 9, are months with the highest UV index in Harrisburg, Pennsylvania.

How high is the UV index in July in Harrisburg?

In July, the average daily maximum UV index in Harrisburg is 9. A UV Index reading of 8 to 10 represents a very high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in July - Harrisburg, PA
  • Average high temperature in July: 85.5°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in July: 66.3°F

The month with the highest average low temperature is July (66.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average humidity in July - Harrisburg, PA
  • Average humidity in July: 68.6%

The month with the highest relative humidity is September (73.8%).
The month with the lowest relative humidity is April (59.2%).

Average rainfall in July - Harrisburg, PA
  • Average rainfall in July: 4.6"

The wettest month (with the highest rainfall) is July (4.6").
The driest month (with the lowest rainfall) is February (2.4").

Average rainfall days in July - Harrisburg, PA
  • Average rainfall days in July: 10.7 days

The month with the highest number of rainy days is May (12.2 days).
The month with the lowest number of rainy days is October (8.8 days).

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

The month with the highest snowfall is February (10.5").
Months with the lowest snowfall are May, June, July, August, September and October (0").

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 (5.2 days).
Months with the lowest number of snowfall days are May, 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 shortest days is December (Average daylight: 9.4h).

  • Average sunshine in July: 10h

The month with most sunshine is July (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 4.1h).

Average UV index in July - Harrisburg, PA
  • Average UV index in July: 9

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).