July weather forecast
Hartsville, PA

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Weather in July

July, like June, in Hartsville, Pennsylvania, is a moderately hot summer month, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 67.5°F (19.7°C).

Temperature

July stands out as Hartsville's warmest month, with temperatures ranging between an average high of 85.6°F (29.8°C) and a low of 67.5°F (19.7°C).

Heat index

July's average heat index is computed to be a very hot 95°F (35°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The months with the lowest humidity are April, July and August, with an average relative humidity of 72%.

Rainfall

In July, the rain falls for 10.3 days. Throughout July, 0.71" (18mm) of precipitation is accumulated. Throughout the year, in Hartsville, there are 83.7 rainfall days, and 6.22" (158mm) of precipitation is accumulated.

Snowfall

In Hartsville, snow does not fall in June through October.

Daylight

In July, the average length of the day is 14h and 42min.
On the first day of July, sunrise is at 5:34 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:15 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.7h 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 of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In July, the maximum UV index of 6 suggests this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

July, noted for its average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 67.5°F (19.7°C), is considered the warmest month.

How hot is it in July?

The high-temperature, in July, in Hartsville, records 85.6°F (29.8°C), while the low-temperature is 67.5°F (19.7°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 95°F (35°C).

What are the least humid months?

April, July and August, with an average relative humidity of 72%, are the least humid months.

What is the average humidity in July?

The average relative humidity in July is 72%.

How many days does it rain in July?

In July, the rain falls for 10.3 days. Throughout July, 0.71" (18mm) of precipitation is accumulated.

When it does not snow?

In Hartsville, snow does not fall in June through October.

How many hours of daylight does Hartsville have in July?

The average day length in July is 14h and 42min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:34 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:15 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.7h of sunshine.

How many hours of sunshine does Hartsville have in July?

In July, the average sunshine duration is 10.7h.

What is the month with the highest UV index in Hartsville?

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

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
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
Hartsville, PA

Average temperature in July - Hartsville, PA
  • Average high temperature in July: 85.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in July: 67.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in July
Hartsville, PA

Average pressure in July - Hartsville, 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).

Average wind speed in July
Hartsville, PA

Average wind speed in July - Hartsville, PA
  • Average wind speed in July: 5.4mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in July
Hartsville, PA

Average humidity in July - Hartsville, PA
  • Average humidity in July: 72%

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall in July
Hartsville, PA

Average rainfall in July - Hartsville, PA
  • Average rainfall in July: 0.71"

The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.2").

Average rainfall days in July
Hartsville, PA

Average rainfall days in July - Hartsville, PA
  • Average rainfall days in July: 10.3 days

The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in July
Hartsville, PA

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

The month with the highest snowfall is February (0.43").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in July
Hartsville, PA

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

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Hartsville, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in July
Hartsville, PA

Average sunshine days in July - Hartsville, PA
  • Average sunshine days in July: 17.4 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (17.4 days).

Average UV index in July
Hartsville, PA

Average UV index in July - Hartsville, 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).

Average cloud cover in July
Hartsville, PA

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

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in July
Hartsville, PA

Average visibility in July - Hartsville, 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).

Hartsville, Pennsylvania, USA

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