July weather forecast
Petersburg, IN

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Weather in July

July, like June, in Petersburg, Indiana, is another warm summer month, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 84.7°F (29.3°C).

Temperature

Petersburg's temperature records reveal July as the warmest month, marked by average highs of 84.7°F (29.3°C) and lows of 67.3°F (19.6°C).

Heat index

July's average heat index is estimated at a fiery hot 96.8°F (36°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in July in Petersburg is 80%.

Rainfall

In Petersburg, Indiana, in July, during 16.8 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 151.2 rainfall days, and 26.3" (668mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In July, the average length of the day is 14h and 32min.
On the first day of the month, sunrise is at 6:29 am and sunset at 9:17 pm. On the last day of July, sunrise is at 6:50 am and sunset at 9:00 pm EDT.

Sunshine

June and July, with an average of 10.4h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 6 in July leads to these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

In Petersburg, the average highest temperatures are observed in July, with a high of 84.7°F (29.3°C) and a low of 67.3°F (19.6°C).

How hot is July?

The average high-temperature and low-temperature during July are 84.7°F (29.3°C) and 67.3°F (19.6°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is estimated at 96.8°F (36°C).

What is the average humidity in July?

In July, the average relative humidity is 80%.

How many days does it rain in July?

In Petersburg, in July, during 16.8 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow?

In Petersburg, snow does not fall in May through October.

How many hours of daylight does Petersburg have in July?

In July, the average day length is 14h and 32min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 6:29 am and sunset at 9:17 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 9:00 pm EDT.

What are the months with the most sunshine?

June and July, with an average of 10.4h of sunshine, are months with the most sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 10.4h.

What are the months with the highest UV index?

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

How high is the UV index in July?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
Petersburg, IN

Average temperature in July - Petersburg, IN
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in July: 67.3°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure in July
Petersburg, IN

Average pressure in July - Petersburg, IN
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in July
Petersburg, IN

Average wind speed in July - Petersburg, IN
  • Average wind speed in July: 5.7mph

The windiest months (with the highest average wind speed) are January, February and April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in July
Petersburg, IN

Average humidity in July - Petersburg, IN
  • Average humidity in July: 80%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Petersburg, IN

Average rainfall in July - Petersburg, IN
  • Average rainfall in July: 2.36"

The wettest month (with the highest rainfall) is April (3.19").
The driest month (with the least rainfall) is September (1.38").

Average rainfall days in July
Petersburg, IN

Average rainfall days in July - Petersburg, IN
  • Average rainfall days in July: 16.8 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in July
Petersburg, IN

Average snowfall in July - Petersburg, IN
  • Average snowfall in July: 0"

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Petersburg, IN

Average snowfall days in July - Petersburg, IN
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Petersburg, IN

Average daylight in July / Average sunshine in July - Petersburg, IN
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in July
Petersburg, IN

Average sunshine days in July - Petersburg, IN
  • Average sunshine days in July: 11.3 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (9.8 days).

Average UV index in July
Petersburg, IN

Average UV index in July - Petersburg, IN
  • 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, November and December (UV index 2).

Average cloud cover in July
Petersburg, IN

Average cloud cover in July - Petersburg, IN
  • Average cloud cover in July: 30

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June and August (Cloud cover 29).

Average visibility in July
Petersburg, IN

Average visibility in July - Petersburg, IN
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Petersburg, Indiana, USA

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