Last updated: February 24, 2025
Experience the vibrant summer month of August in Pittsburgh, where temperatures soar with a maximum of 34°C (93°F), while the average settles comfortably around 23°C (73°F). However, evenings can be refreshingly cool, dipping down to a minimum of 11°C (52°F). This month also brings 89 mm (3.5 in) of rainfall, spread over 16 days, keeping the city lush and green. With humidity levels hovering around 76%, August in Pittsburgh is a humid yet lively time, perfect for outdoor activities and enjoying the summer festivities!
August in Pittsburgh brings a vibrant transition from the sweltering summer heat to the cool embraces of fall. With temperatures ranging from a minimum of 11°C (52°F) to a maximum of 34°C (93°F), the month averages around 23°C (73°F), making it one of the warmest times of the year. This consistent warmth is ideal for outdoor activities, as residents and visitors alike enjoy the city's lush parks and riverside events. As summer peaks, the temperatures start to hint at the cooler months ahead, creating a unique blend of seasonal delights. With a gradual decline in the evening chill compared to July, August offers a perfect backdrop for late-night gatherings, while still highlighting the brilliance of summer's final hurrah.
In August, Pittsburgh experiences a slight dip in precipitation, recording 89 mm (3.5 in) over 16 days. This marks a decrease from the preceding months, which typically see higher rainfall, especially June and July, where precipitation levels peak at 155 mm (6.1 in) and 154 mm (6.1 in), respectively. As summer wanes, the city transitions into September with an expected uptick in precipitation, hinting at the onset of autumn. Despite the reduction in August rains, the consistent number of rainy days indicates that the region's weather remains unpredictable, preparing residents for the more variable conditions that fall often brings. Overall, while August may provide a brief respite from summer’s heavier downpours, it sets the stage for the moist, cooler months ahead.
In Pittsburgh, August brings a noticeable drop in humidity, with levels averaging 76%—a refreshing change from the consistently high readings seen earlier in the year. Starting at a high of 88% in January and February, humidity gradually eases through spring and early summer months, hovering around the low 80s until July. This shift becomes even more pronounced in August, indicating the onset of drier late summer conditions. As the city transitions into September, humidity levels rise slightly to 77%, but August remains the most comfortable month, highlighting a trend of decreasing humidity that offers a brief reprieve before the humidity climbs again in the fall and winter months.
In August, Pittsburgh experiences a UV Index of 9, indicating a very high level of sun exposure, with a burn time of just 15 minutes. This trend follows the peak summer months where the UV Index has consistently been at 10 in both June and July. As we transition from the fiery heights of summer into early fall, the UV levels begin to decline, but August still requires caution. This pattern highlights the importance of protecting your skin during this month, as the risk of sunburn remains significant. For more detailed insights on UV index variations throughout the year in Pittsburgh, visit Pittsburgh UV Index.
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August in Pittsburgh shines brightly with an impressive 316 hours of sunlight, making it one of the sunniest months of the year. This peak in sunshine follows a steady increase from 104 hours in January, showcasing the gradual transition from winter's gloom to the vibrant summer days. June and July also boast high sunshine totals, with 301 and 332 hours, respectively, but August maintains a strong presence, just slightly behind. As summer transitions to fall, September sees a decline to 277 hours, hinting at the approaching cooler months. Overall, the pattern indicates a clear upward trend in sunlight from the depths of winter, ultimately peaking in the heart of summer before gently tapering off in the autumn.
In August, Pittsburgh enjoys a 38% chance of sunny weather, which reflects a continuation of summer's warm embrace. This percentage is a slight decline from the sunniest months of July, where the chance peaks at 44%, but still offers a decent opportunity for outdoor activities and enjoying the vibrant city atmosphere. As the season transitions into the fall, the likelihood of sun increases again in September, reaching 51%. Overall, while August may not be the sunniest month, it holds a respectable place in the yearly weather patterns, inviting residents and visitors alike to soak up the summer rays before the cooler days set in.
In Pittsburgh, the daylight duration exhibits a clear seasonal rhythm throughout the year. Starting from a modest 9 hours in January, daylight gradually increases, reaching its peak at 15 hours in June, the height of summer. As July rolls in, the daylight begins to wane slightly, tapering off to 14 hours. However, by August, it settles at 13 hours, providing still ample time for outdoor activities before the days shorten further with the arrival of fall. This gradual decline continues into September and October, where the daylight shrinks to 12 and 11 hours respectively, before dropping back to 9 hours by November and December. The trends highlight not only the extension of daylight during the brighter months but also the swift transition into the darker seasons, characteristic of Pittsburgh's temperate climate.
In August, Pittsburgh experiences a noticeable dip in average wind speed, dropping to 2.0 m/s (4 mph), making it the calmest month of the year. This trend of decreasing winds begins in the hotter months, with July also recording a low of 2.3 m/s (5 mph). The gentle breezes of summer give way to more refreshing autumnal gusts in September, where the wind picks up again to 2.9 m/s (6 mph). This pattern suggests that as the heat of summer wanes, Pittsburgh's winds gradually return, inviting a shift in the seasonal atmosphere. The overall trend indicates a consistent rhythm of wind patterns, where summer's stillness is succeeded by the crisp energy of fall.
The weather in Pittsburgh changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Pittsburgh and find detailed weather information for every month.
August and January present stark contrasts in weather. In August, temperatures range significantly from a cool 11°C (52°F) at night to a warm average of 23°C (73°F), peaking at a sweltering 34°C (93°F) during the day. The month sees around 89 mm (3.5 in) of precipitation over approximately 16 days, coupled with a moderate humidity level of 76%. In contrast, January experiences much colder temperatures, with a minimum of -22°C (-8°F) and an average of -1°C (31°F), reaching a maximum of 21°C (70°F). The precipitation is slightly higher at 95 mm (3.7 in), but it occurs on fewer days, just 12, and the humidity is higher at 88%. For more detailed information, you can check out Pittsburgh weather in January.
The weather in August and February contrasts sharply, highlighting the extremes of seasonal temperatures. In August, temperatures typically range from a minimum of 11°C (52°F) to a sizzling maximum of 34°C (93°F), with an average of 23°C (73°F). The month experiences considerable humidity at 76% and moderate precipitation of 89 mm (3.5 in) over approximately 16 days.
In stark contrast, February showcases much colder conditions, with temperatures dropping as low as -20°C (-3°F) and peaking at a max of 25°C (77°F), averaging just 1°C (35°F). This month sees a higher level of precipitation at 125 mm (4.9 in) over 15 days, coupled with elevated humidity levels of 88%. For more detailed insights into February weather, you can visit Pittsburgh weather in February.
August and March present stark contrasts in weather conditions. August boasts warmer temperatures, ranging from a minimum of 11°C (52°F) to a maximum of 34°C (93°F), with an average of 23°C (73°F). The month experiences notable humidity at 76% and receives 89 mm (3.5 in) of precipitation over 16 days. In contrast, March offers a much cooler climate, with temperatures dipping as low as -17°C (1°F) and reaching a pleasant maximum of 25°C (78°F), averaging around 5°C (42°F). Although March receives slightly more precipitation at 109 mm (4.3 in) across 13 days, it also has a higher humidity level of 87%. For more detailed information about March weather in Pittsburgh, check out Pittsburgh weather in March.
When comparing the weather in August and April, we can see distinct differences in temperature and precipitation patterns. August boasts a milder range with temperatures averaging around 23°C (73°F), peaking at a warm 34°C (93°F) and generally higher humidity levels at 76%. In contrast, April experiences much cooler temperatures, with an average of 11°C (52°F) and a maximum of 29°C (84°F), but it has a notably lower minimum temperature of -5°C (24°F). April also sees more precipitation, totaling 132 mm (5.2 in) over 16 days, compared to August's 89 mm (3.5 in) during the same number of days. For a more detailed look at Pittsburgh's weather in April, check out Pittsburgh weather in April.
When comparing the weather between August and May, notable differences emerge. August typically boasts warmer temperatures, with averages around 23°C (73°F) and maximums reaching up to 34°C (93°F), while May experiences cooler conditions, averaging 17°C (63°F) and peaking at 31°C (89°F). In terms of precipitation, May is the wetter month, receiving 150 mm (5.9 in) over 17 days compared to August's 89 mm (3.5 in) over 16 days. Additionally, the humidity remains relatively high in both months, with May slightly higher at 81%, compared to August's 76%. For more detailed insights on May's weather patterns, you can visit Pittsburgh weather in May.
When comparing the weather in June and August, several notable differences emerge. August tends to be warmer, with average temperatures around 23°C (73°F) compared to June's average of 21°C (70°F). However, June experiences slightly cooler nights, with minimum temperatures dropping to 5°C (41°F) compared to August's 11°C (52°F). Precipitation levels are higher in June, totaling 155 mm (6.1 in) over 16 days, whereas August receives 89 mm (3.5 in) over the same number of days. Humidity is also slightly higher in June at 83%, compared to 76% in August. For more detailed insights, you can check out Pittsburgh weather in June.
When comparing the weather in August to that of July, we notice several distinctions. August features slightly cooler temperatures, with a minimum of 11°C (52°F) and an average of 23°C (73°F), compared to July's minimum of 12°C (53°F) and average of 24°C (75°F). While both months experience high temperatures, August reaches a maximum of 34°C (93°F), just shy of July's peak of 35°C (96°F). Precipitation is notably lower in August, totaling 89 mm (3.5 in) over 16 days, whereas July sees 154 mm (6.1 in) across 15 days. Humidity also decreases slightly in August to 76%, down from July's 82%. For more details, you can view the Pittsburgh weather in July.
August and September present a notable shift in weather patterns. In August, temperatures range from a minimum of 11°C (52°F) to a maximum of 34°C (93°F), with an average of 23°C (73°F). The month experiences about 89 mm (3.5 inches) of precipitation over 16 days, and the humidity is relatively high at 76%. In contrast, September sees cooler temperatures, with a minimum of 5°C (40°F) and an average of 20°C (68°F), while still reaching a maximum of 34°C (93°F). Precipitation increases to 128 mm (5.0 inches), but falls over fewer days, totaling just 10. Humidity remains slightly higher at 77%. For more details, you can check out the Pittsburgh weather in September.
August typically experiences warmer temperatures, with a minimum of 11°C (52°F) and an average of 23°C (73°F), peaking at 34°C (93°F). The month sees 89 mm (3.5 in) of precipitation over 16 days, coupled with a humidity level of 76%. In contrast, October brings a significant drop in temperatures, starting at a minimum of -1°C (31°F) and averaging 14°C (57°F), although it can still reach a maximum of 31°C (89°F). The precipitation in October increases to 128 mm (5.0 in) over 14 days, accompanied by slightly higher humidity at 82%. For more specifics on October conditions, you can check Pittsburgh weather in October.
August and November present distinct contrasts in weather patterns. August typically enjoys warmer conditions, with average temperatures around 23°C (73°F) and maximums reaching up to 34°C (93°F), while November sees a significant drop, with an average temperature of just 5°C (42°F) and minimums plummeting to -13°C (9°F). Both months experience similar levels of precipitation, around 89-94 mm, but August has more rainy days (16) compared to November's 11 days. Humidity also increases in November, reaching 89%, while August retains a slightly lower humidity level at 76%. For more detailed insights, check Pittsburgh weather in November.
August and December present striking contrasts in weather. In August, temperatures range from a mild 11°C (52°F) to a hot 34°C (93°F), with an average of 23°C (73°F), accompanied by significant humidity at 76%. The month sees about 89 mm (3.5 in) of precipitation over 16 days, indicating a fairly wet summer. In contrast, December experiences much colder conditions, with temperatures ranging from a frigid -16°C (4°F) to a maximum of 18°C (65°F), averaging just 2°C (36°F). Although it has slightly higher precipitation at 102 mm (4.0 in) over 12 days, the increased humidity at 86% adds to the chill. For more information on December weather specifics, you can visit Pittsburgh weather in December.
August in Pittsburgh brings a blend of warmth and humidity, setting it apart from the other months of the year. With maximum temperatures reaching a toasty 34°C, the summer heat is at its peak, creating a vibrant atmosphere for outdoor activities. However, this warmth is often accompanied by increased precipitation, with about half the month seeing rainfall. The humidity levels also elevate, making the air feel stickier than during the cooler seasons. As summer transitions into fall, August’s dynamic weather highlights the unique charm of Pittsburgh’s climate. For a deeper dive into Pittsburgh's weather patterns, visit Pittsburgh Climate.