July weather forecastAllentown, PA
July
Weather in July
July in Allentown is typically recognized for its soaring temperatures. It is the hottest month, with temperature extremes at 63.5°F (17.5°C) to 83.8°F (28.8°C). Residents and tourists maximize their outdoor fun, with the weather supporting a variety of activities including boating, hiking, and nature walks. Despite occasional summer showers, the extended sunshine hours ensure plenty of time to enjoy the great outdoors. Sunscreen and hats become essential items due to higher ultraviolet radiation levels.Temperature
July is Allentown's warmest month, registering average high temperatures of 83.8°F (28.8°C) and lows of 63.5°F (17.5°C).Heat index
July's average heat index is estimated at a hot 91.4°F (33°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Consider that heat index readings are for situations in the shade and light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The months with the lowest humidity are April and July, with an average relative humidity of 76%.Rainfall
The month with the most rainfall is July, when the rain falls for 15.7 days and typically aggregates up to 3.03" (77mm) of precipitation.Snowfall
In Allentown, snow does not fall in June through September.Daylight
In Allentown, the average length of the day in July is 14h and 44min.On the first day of July, sunrise is at 5:35 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:17 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.4h of sunshine.UV index
June and 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 ordinary individuals.Note: The UV index of 6 in July translates into these instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Allentown, PA
- Average high temperature in July: 83.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in July: 63.5°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in July
Allentown, 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
Allentown, PA
- Average wind speed in July: 5.1mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in July
Allentown, PA
- Average humidity in July: 76%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in July
Allentown, PA
- Average rainfall in July: 3.03"
The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in July
Allentown, PA
- Average rainfall days in July: 15.7 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in July
Allentown, PA
- Average snowfall in July: 0"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Allentown, PA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Allentown, 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 18min).
- Average sunshine in July: 10h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in July
Allentown, PA
- Average sunshine days in July: 13.4 days
The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in July
Allentown, PA
- Average UV index in July: 6
The months with the highest UV index are 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
Allentown, PA
- Average cloud cover in July: 34
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in July
Allentown, PA
- Average visibility in July: 6mi
The months with the highest visibility are April, July and November (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September, October and December (5mi).
