Last updated: February 24, 2025
July in Philadelphia brings a vibrant mix of summer warmth and occasional rainfall, with maximum temperatures soaring to 37°C (99°F) and an average of 26°C (79°F). The month is marked by relatively high humidity at 74%, creating a muggy atmosphere that often precedes refreshing summer showers. With 131 mm (5.2 in) of precipitation spread over 13 days, the city's landscape bursts with greenery, providing both a contrast to the heat and a canvas for outdoor activities. Whether basking in the sun or enjoying the verdant parks following a warm rain, July in Philadelphia is a colorful tapestry of summer experiences.
In July, Philadelphia basks in the height of summer, showcasing a warm and inviting climate. With minimum temperatures averaging a comfortable 14°C (58°F) and maximums climbing to a sweltering 37°C (99°F), residents and visitors alike enjoy vibrant outdoor activities under the sun. The average temperature of 26°C (79°F) underscores the season's warmth, making it the perfect time for festivals and picnics. Compared to the cooler months, July stands out with its significantly elevated readings, marking a clear transition into a more vibrant and energetic phase of the year. As the city swelters, the sunny days encourage exploration and celebration, epitomizing the lively spirit of summer in Philadelphia.
In July, Philadelphia experiences a notable peak in precipitation, with an average of 131 mm (5.2 in) falling over 13 days. This not only marks the month as one of the wettest of the year, but it also aligns closely with the rainfall patterns observed in June and August, reflecting a trend of increased moisture during the summer months. As the city basks in the summer heat, these rain events can provide much-needed relief while contributing to the vibrant greenery that thrives in the urban landscape. The consistent frequency of rainy days in July indicates a season marked by intermittent showers, setting a dynamic backdrop for outdoor activities and festivities.
In Philadelphia, July ushers in a refreshing dip in humidity, with levels averaging around 74%. This marks a notable decline from the peak moisture of winter months, where January and February hover around 84%. As spring transitions into summer, humidity gradually decreases—falling from 81% in April to 78% in May and 79% in June—before reaching its lowest point in July. Following the summer peak, August continues the trend with even lower humidity at 72%, suggesting a comfortable respite for residents. This trend not only highlights the city’s seasonal shifts but also sets the stage for a delightful summer atmosphere in the heart of Pennsylvania.
During July, Philadelphia experiences a UV Index of 10, placing it in the very high exposure category and resulting in a burn time of just 15 minutes for unprotected skin. This peak reflects an ongoing trend from late spring through summer, with UV Index values soaring to their maximum levels. As temperatures rise and days become longer, residents and visitors should remain vigilant about sun safety. Following the patterns of May and June, where the UV Index also hit 10, July continues to emphasize the importance of protection against harmful UV rays. For more insights into managing sun exposure, check out Philadelphia UV Index.
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In July, Philadelphia basks in the height of summer, soaking up an impressive 346 hours of sunshine, making it the sunniest month of the year. This peaks in a season characterized by a steady buildup of sunlight, as the city transitions from the relatively modest 144 hours in January to increasingly brighter months. Each subsequent month leads to a remarkable increase, culminating in July’s radiant glow, which is a delightful reprieve from the winter's gloom. As August rolls in with 309 hours, the warmth continues, but there's a noticeable shift towards the brisker days of fall, where sunshine hours begin to wane. Such trends highlight not only the seasonal rhythms of Philadelphia but also the vibrant energy that summer brings to the city.
In Philadelphia, July enjoys a 47% chance of sunny weather, marking it as a relatively bright spot in the summer calendar. This is a modest increase compared to the preceding month of June, which has a 36% likelihood of sunshine. Interestingly, July's sunshine potential is markedly higher than August's 33%, suggesting that the peak of summer provides better odds for outdoor activities. Additionally, when looking at the year as a whole, July stands out against the winter months, where January struggles at 45% and February dips even lower to 28%. Overall, while July may not guarantee endless sunshine, it remains one of the month’s better bets for clear skies, making it an ideal time for summer festivities and outdoor adventures.
In July, Philadelphia basks in an abundance of 14 hours of daylight, maintaining the peak duration seen in the previous month. This month's sunlight extends the vibrant summer days, allowing residents to fully enjoy outdoor activities and social gatherings. As spring melts into summer, daylight gradually increased from just 9 hours in January to this seasonal high, showcasing a steady trend of growth throughout the spring months. Following July, the days start to shorten slightly in August, with daylight tapering to 13 hours, hinting at the gradual transition towards fall. This ebb and flow of daylight not only shapes the rhythm of daily life in the city but also reflects the natural cycles of the year.
In July, Philadelphia experiences its lightest breezes of the year, with an average wind speed plummeting to just 2.3 m/s (5 mph). This decline from June's 2.7 m/s not only underscores the city's seasonal shift but also highlights a broader trend: as summer settles in, the winds tend to calm. This gentle atmosphere complements July's warmth, making for lazy, sun-soaked days where the air feels still and inviting. As we transition into August, the wind remains subdued, reflecting a serene summer vibe that encourages leisurely days spent exploring the city’s parks or enjoying outdoor cafes. Overall, the trend reveals that while Philadelphia's winters may be brisk and breezy, the height of summer brings a peaceful, almost languid stillness to the air.
The weather in Philadelphia changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Philadelphia and find detailed weather information for every month.
July and January present a stark contrast in weather. In July, temperatures typically range from a pleasant 14°C (58°F) at night to a sizzling 37°C (99°F) during the day, with an average of 26°C (79°F). This month experiences considerable rainfall, totaling 131 mm (5.2 in) over approximately 13 days, combined with high humidity levels at 74%. In contrast, January is characterized by much colder conditions, with temperatures plummeting to a minimum of -17°C (1°F) and peaking at a maximum of 20°C (68°F), averaging only 2°C (36°F). Precipitation is significantly lower at 63 mm (2.5 in) over about 9 days, and humidity is slightly higher at 84%. For more details on January conditions, you can check Philadelphia weather in January.
In comparing the weather of July and February, it's clear that the two months present stark contrasts. July boasts a warm average temperature of 26°C (79°F), with highs reaching up to 37°C (99°F) and relatively high humidity at 74%. However, it also experiences considerable precipitation, totaling 131 mm (5.2 in) over 13 days. In contrast, February features a much colder climate, with an average temperature of just 4°C (39°F) and minimums plummeting to -15°C (5°F). While it still sees some precipitation, with 108 mm (4.3 in) over 11 days, the humidity is higher at 83%. For a more detailed look at February weather specifics in Philadelphia, please visit Philadelphia weather in February.
The weather in July and March demonstrates a significant contrast in both temperature and precipitation. July boasts a warm average temperature of 26°C (79°F), with maximum highs reaching 37°C (99°F), while March has a much cooler average of just 7°C (44°F), peaking at 28°C (83°F). Additionally, July sees higher humidity at 74% compared to March's 83%, creating a more oppressive heat during the summer month. Precipitation is somewhat comparable, with July experiencing 131 mm (5.2 in) over 13 days, while March receives 107 mm (4.2 in) across 10 days. For more details on the weather in March, check out Philadelphia weather in March.
In comparing the weather between April and July, it's evident that July brings significantly warmer temperatures, with averages reaching 26°C (79°F) compared to April's milder 12°C (55°F). July experiences higher maximum temperatures, peaking at 37°C (99°F), while April’s maximum can reach 32°C (89°F). Additionally, July has more precipitation overall, with 131 mm (5.2 in) over 13 days, in contrast to April's 105 mm (4.1 in) over 11 days. Humidity is slightly lower in July at 74%, compared to 81% in April. For a more detailed look at weather patterns, you can refer to Philadelphia weather in April.
In comparing July and May weather, July is notably warmer with an average temperature of 26°C (79°F) compared to May's more moderate 18°C (65°F). While both months experience similar levels of precipitation—131 mm (5.2 inches) in July and 133 mm (5.2 inches) in May—the humidity in July is slightly lower at 74%, down from May's 78%. Additionally, July sees higher maximum temperatures, reaching up to 37°C (99°F), while May peaks at 35°C (95°F). For more detailed insights on May's weather patterns, you can check Philadelphia weather in May.
In comparing the weather of June and July, July tends to be warmer with an average temperature of 26°C (79°F) compared to June's 23°C (74°F). The maximum temperatures in both months are similar, reaching up to 37°C (99°F) in July and 36°C (98°F) in June. However, July experiences slightly more precipitation, totaling 131 mm (5.2 in) over 13 days, while June has 102 mm (4.0 in) spread over 11 days. Additionally, July's humidity is somewhat lower at 74%, compared to June's 79%. For further details, you can check Philadelphia weather in June.
In comparison to July, August experiences slightly cooler temperatures, with an average of 25°C (77°F) compared to July's 26°C (79°F). Both months have the same minimum temperature of 14°C (58°F), but August's maximum temperature is a notch lower at 35°C (96°F), while July peaks at 37°C (99°F). Precipitation levels are comparable, with August receiving 134 mm (5.3 in) over 14 days and July seeing 131 mm (5.2 in) across 13 days. Humidity remains high in both months, with a slight decrease in August at 72% compared to July's 74%. For more details, visit Philadelphia weather in August.
When comparing the weather in July and September, it is evident that July is generally warmer and more humid. In July, temperatures range from a minimum of 14°C (58°F) to a maximum of 37°C (99°F), with an average temperature of 26°C (79°F). The month experiences considerable rainfall, with 131 mm (5.2 in) of precipitation over 13 days, contributing to a humidity level of 74%.
In contrast, September sees cooler temperatures, with a minimum of 6°C (44°F), an average of 22°C (71°F), and a maximum of 35°C (95°F). The month also has less rainfall, totaling 93 mm (3.7 in) over 10 days, while humidity remains slightly higher at 75%. This shift marks a transition from the sweltering summer heat of July to the milder and drier conditions typical of early autumn. For more details, check out Philadelphia weather in September.
July and October present striking contrasts in weather patterns. In July, temperatures can soar as high as 37°C (99°F) with an average of 26°C (79°F), making it a hot and humid month, with 131 mm of precipitation occurring over 13 days. In contrast, October experiences significantly cooler temperatures, with a maximum of 35°C (96°F) and an average of 16°C (61°F), reflecting a notable drop in warmth. Despite its milder temperatures, October sees a higher humidity level at 81%, although it has less precipitation than July, totaling 106 mm over 9 days. For more details, check out Philadelphia weather in October.
In July, the weather is significantly warmer, with average temperatures around 26°C (79°F) and highs reaching up to 37°C (99°F). Rainfall is relatively high, with 131 mm (5.2 in) spread over 13 days, resulting in a humidity level of 74%. In contrast, November experiences much cooler temperatures, with an average of 8°C (47°F) and a minimum plummeting to -8°C (18°F). Although precipitation decreases to 83 mm (3.3 in) over just 8 days, the humidity remains quite high at 85%. For more specific details about the weather in November, you can visit Philadelphia weather in November.
In July, the weather is characterized by warm temperatures, with a minimum of 14°C (58°F) and an average high of 26°C (79°F), peaking at a scorching 37°C (99°F). This month also sees considerable precipitation, totaling 131 mm (5.2 inches) over approximately 13 days, coupled with a humidity level of 74%. In contrast, December brings much colder conditions, with temperatures ranging from a minimum of -12°C (10°F) to an average of just 4°C (40°F), and a maximum reaching 19°C (67°F). The month experiences slightly less precipitation at 100 mm (4.0 inches) over 10 days, but with higher humidity at 84%. For more details about weather during December, you can visit Philadelphia weather in December.
July in Philadelphia brings a unique blend of heat and humidity, making it one of the warmest months of the year. With temperatures soaring to a maximum of 37°C (99°F), residents and visitors can expect to experience a more intense climate compared to the milder conditions of spring or fall. The month is also marked by considerable precipitation, with rain splashing down on about 13 days, contributing to the overall humidity level of 74%. This combination of warmth and moisture sets July apart from the other months, creating an atmosphere that's vibrant yet sometimes sweltering. For a deeper understanding of Philadelphia's yearly weather patterns, be sure to check out Philadelphia Climate.