Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
The temperatures reach their highest averages in July, with highs of 83.7°F (28.7°C) and lows of 64.2°F (17.9°C).Heat index
The heat index for July is estimated at a hot 91.4°F (33°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In Saint Peters, Pennsylvania, the average relative humidity in July is 77%.Rainfall
In Saint Peters, during July, the rain falls for 16.3 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Saint Peters, during the entire year, the rain falls for 162.2 days and collects up to 27.87" (708mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In July, the average length of the day is 14h and 42min.On the first day of the month, sunrise is at 5:37 am and sunset at 8:36 pm. On the last day of July, in Saint Peters, sunrise is at 6:00 am and sunset at 8:17 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.6h 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 estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during July translates into the following guidance:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
Is it hot during July?
What is the average humidity in July?
How much does it rain in July?
When it does not snow?
How many hours of daylight does Saint Peters have in July?
When is the sunrise / sunset in July?
What month has the most sunshine?
How long on average sun shines in July?
What is the month with the highest UV index?
How high is the UV index in July?
Average temperature in July
Saint Peters, PA
- Average high temperature in July: 83.7°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in July: 64.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in July
Saint Peters, PA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in July
Saint Peters, PA
- Average wind speed in July: 5mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in July
Saint Peters, PA
- Average humidity in July: 77%
The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in July
Saint Peters, PA
- Average rainfall in July: 2.6"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in July
Saint Peters, PA
- Average rainfall days in July: 16.3 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in July
Saint Peters, PA
- Average snowfall in July: 0"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Saint Peters, PA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Saint Peters, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in July
Saint Peters, PA
- Average sunshine days in July: 12.4 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in July
Saint Peters, 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).
Average cloud cover in July
Saint Peters, PA
- Average cloud cover in July: 31
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in July
Saint Peters, PA
- Average visibility in July: 6mi
The months with the highest visibility are January, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are February, May, September and October (5mi).
Saint Peters, Pennsylvania, USA
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