July weather forecast
Saint Peters, PA

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Weather in July

July, like June, in Saint Peters, Pennsylvania, is a moderately hot summer month, with an average temperature fluctuating between 64.2°F (17.9°C) and 83.7°F (28.7°C).

Temperature

July, with its average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 64.2°F (17.9°C), holds the record as the warmest month.

Heat index

The heat index value for July is evaluated at a tropical 91.4°F (33°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The average relative humidity in July in Saint Peters is 77%.

Rainfall

In Saint Peters, in July, during 16.3 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Saint Peters, during the entire year, the rain falls for 162.2 days and collects up to 27.87" (708mm) of precipitation.

Snowfall

In Saint Peters, Pennsylvania, snow does not fall in June through September.

Daylight

In Saint Peters, the average length of the day in July 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, sunrise is at 6:00 am and sunset at 8:17 pm EDT.

Sunshine

The month with the most sunshine in Saint Peters is July, with an average of 10.6h of sunshine.

UV index

The months with the highest UV index in Saint Peters are May through July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 6 in July translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What month is the hottest in Saint Peters?

July is the month when Saint Peters's temperatures reach their peak, with averages of 83.7°F (28.7°C) and lows of 64.2°F (17.9°C).

Is it hot in Saint Peters during July?

The high-temperature, in July, in Saint Peters, is 83.7°F (28.7°C), while the low-temperature averages to 64.2°F (17.9°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 91.4°F (33°C).

What is the average humidity in July in Saint Peters?

In Saint Peters, the average relative humidity in July is 77%.

How much does it rain in Saint Peters in July?

In Saint Peters, in July, it is raining for 16.3 days, with typically 2.6" (66mm) of accumulated precipitation.

When it does not snow in Saint Peters?

June through September are months without snowfall.

How many hours of daylight does Saint Peters have in July?

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

What time are sunrise and sunset in July in Saint Peters?

On the first day of July in Saint Peters, Pennsylvania, sunrise is at 5:37 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:17 pm EDT.

What month has the most sunshine in Saint Peters?

With an average of 10.6h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July in Saint Peters?

The average sunshine duration in July in Saint Peters is 10.6h.

What are the months with the highest UV index in Saint Peters?

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

What is the UV index reading in July in Saint Peters?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Saint Peters, PA

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).

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Average pressure in July
Saint Peters, PA

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).

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Average wind speed in July
Saint Peters, PA

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).

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Average humidity in July
Saint Peters, PA

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%).

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Average rainfall in July
Saint Peters, PA

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").

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Average rainfall days in July
Saint Peters, PA

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).

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Average snowfall in July
Saint Peters, PA

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").

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Average snowfall days in July
Saint Peters, PA

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).

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Average daylight in July /
Average sunshine in July
Saint Peters, PA

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).

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Average sunshine days in July
Saint Peters, PA

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).

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Average UV index in July
Saint Peters, PA

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).

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Average cloud cover in July
Saint Peters, PA

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).

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Average visibility in July
Saint Peters, PA

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).

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Saint Peters, Pennsylvania, USA

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