July weather forecastBrookhaven, PA
July
Weather in July
July, like June, in Brookhaven, Pennsylvania, is another warm summer month, with an average temperature ranging between max 85.6°F (29.8°C) and min 68.7°F (20.4°C).Temperature
In Brookhaven, Pennsylvania, July records the highest average temperatures, peaking at 85.6°F (29.8°C) and reaching a low of 68.7°F (20.4°C).Heat index
July's heat index is estimated at a sweltering 95°F (35°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The average relative humidity in July is 73%.Rainfall
In Brookhaven, during July, the rain falls for 17 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Brookhaven, Pennsylvania, during the entire year, the rain falls for 148.4 days and collects up to 25.94" (659mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Brookhaven, the average length of the day in July is 14h and 40min.On the first day of July in Brookhaven, sunrise is at 5:37 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:15 pm EDT.
Sunshine
The month with the most sunshine is July, with an average of 10.7h of 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 estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In July, a regular UV index of 6 translates into these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Brookhaven, 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 (37.4°F).
- Average low temperature in July: 68.7°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in July
Brookhaven, 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
Brookhaven, PA
- Average wind speed in July: 5.5mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in July
Brookhaven, PA
- Average humidity in July: 73%
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in July
Brookhaven, PA
- Average rainfall in July: 2.68"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in July
Brookhaven, PA
- Average rainfall days in July: 17 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in July
Brookhaven, PA
- Average snowfall in July: 0"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in July
Brookhaven, PA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Brookhaven, PA
- Average daylight in July: 14h and 42min
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 42min
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 54min).
Average sunshine days in July
Brookhaven, PA
- Average sunshine days in July: 11.3 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in July
Brookhaven, 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, November and December (UV index 2).
Average cloud cover in July
Brookhaven, PA
- Average cloud cover in July: 30
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in July
Brookhaven, PA
- 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).
