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
July is the warmest month, exhibiting average temperatures of 86°F (30°C) at the peak and 68.5°F (20.3°C) at the base.Heat index
The heat index value for July is evaluated at a torrid 96.8°F (36°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In July, the average relative humidity in Upper Darby is 73%.Rainfall
In Upper Darby, in July, it is raining for 16.9 days, with typically 2.48" (63mm) of accumulated precipitation. In Upper Darby, during the entire year, the rain falls for 142 days and collects up to 24.41" (620mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in July is 14h and 41min.On the first day of July in Upper Darby, Pennsylvania, sunrise is at 5:36 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:15 pm EDT.
Sunshine
With an average of 10.7h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index in Upper Darby, Pennsylvania, are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 6 in July translates into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the hottest time of year in Upper Darby?
How hot is it in Upper Darby in July?
What is the average humidity in July in Upper Darby?
How many days does it rain in July in Upper Darby?
When it does not snow in Upper Darby?
What is the average length of the day in July in Upper Darby?
When is the sunrise / sunset in July in Upper Darby?
What month has the most sunshine in Upper Darby?
How long on average sun shines in July in Upper Darby?
What is the month with the highest UV index in Upper Darby?
What is the UV index intensity in July in Upper Darby?
Average temperature in July
Upper Darby, PA
- Average high temperature in July: 86°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in July: 68.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in July
Upper Darby, 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
Upper Darby, PA
- Average wind speed in July: 5.7mph
The windiest months (with the highest average wind speed) are February, March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in July
Upper Darby, 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
Upper Darby, PA
- Average rainfall in July: 2.48"
The wettest month (with the highest rainfall) is August (2.95").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in July
Upper Darby, PA
- Average rainfall days in July: 16.9 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in July
Upper Darby, PA
- Average snowfall in July: 0"
The month with the highest snowfall is March (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Upper Darby, PA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Upper Darby, 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 54min).
Average sunshine days in July
Upper Darby, PA
- Average sunshine days in July: 12.1 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in July
Upper Darby, 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
Upper Darby, 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
Upper Darby, 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).
Upper Darby, Pennsylvania, USA
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