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
Temperature records mark July as the warmest month, with highs averaging 81.7°F (27.6°C) and lows at 59.2°F (15.1°C).Heat index
In July, the heat index is calculated to be a hot 87.8°F (31°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
The months with the lowest humidity are April and July, with an average relative humidity of 77%.Rainfall
In South Williamsport, Pennsylvania, in July, during 15.8 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, there are 145.2 rainfall days, and 16.57" (421mm) of precipitation is accumulated.Snowfall
In South Williamsport, snow does not fall in May through September.Daylight
In July, the average length of the day is 14h and 48min.On the first day of July, sunrise is at 5:39 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:25 pm EDT.
Sunshine
With an average of 10.1h of sunshine, July has the most sunshine of the year.UV index
July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 6 during July translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
What are July temperatures?
What are the least humid months?
What is the average humidity in July in South Williamsport?
How many days does it rain in July?
When it does not snow?
What is the average length of the day 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
South Williamsport, PA
- Average high temperature in July: 81.7°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in July: 59.2°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in July
South Williamsport, PA
- Average pressure in July: 29.98"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
South Williamsport, PA
- Average wind speed in July: 5mph
The windiest months (with the highest average wind speed) are January, March and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in July
South Williamsport, PA
- Average humidity in July: 77%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in July
South Williamsport, PA
- Average rainfall in July: 1.69"
The wettest month (with the highest rainfall) is April (1.93").
The driest month (with the least rainfall) is November (0.94").
Average rainfall days in July
South Williamsport, PA
- Average rainfall days in July: 15.8 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in July
South Williamsport, PA
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
South Williamsport, PA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
South Williamsport, PA
- Average daylight in July: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in July: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in July
South Williamsport, PA
- Average sunshine days in July: 12.9 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in July
South Williamsport, PA
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in July
South Williamsport, PA
- Average cloud cover in July: 35
The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in July
South Williamsport, PA
- Average visibility in July: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is September (4mi).
South Williamsport, Pennsylvania, USA
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