Last updated: February 24, 2025
Experience the vibrant July weather in Pasadena, United States, where the sun reigns supreme with a maximum temperature soaring to an impressive 43°C (109°F). Enjoy the warmth as the average temperature rests comfortably at 25°C (77°F), while cooler moments can dip to a pleasant 13°C (57°F). With virtually no rainfall—just 2 mm (0.1 in) over the month and zero precipitation days—the humidity remains moderate at 46%, creating an ideal setting for outdoor activities. Embrace the summer heat and make the most of Pasadena's sunny skies!
In July, Pasadena experiences its warmest temperatures of the year, characterized by a significant rise in heat. With minimums averaging 13°C (57°F) and soaring maximums reaching 43°C (109°F), residents and visitors alike feel the intense summer sun. The average temperature climbs to a comfortable 25°C (77°F), offering warm evenings for outdoor activities. This month not only showcases the peak of summer heat but also hints at an overall upward trend in temperatures from the cooler winter months, signaling a vibrant and lively atmosphere in the city. As the mercury rises, the charm of Pasadena's sunny disposition truly comes alive.
In Pasadena during July, precipitation is notably minimal, with only 2 mm (0.1 in) recorded over the month, a stark contrast to the wetness seen in earlier months. This trend reflects the dry summer season, characterized by zero rain days throughout July. The transition from the previous months is evident, as June saw barely any rainfall and July continues this dry spell, indicating a shift toward warmer, arid conditions in the midst of summer. As the seasons progress, it’s clear that precipitation becomes quite scarce, with only a few brief instances of moisture until late autumn, highlighting Pasadena's typically dry climate during this period.
In Pasadena, United States, July marks the peak of summer with a notable drop in humidity, reaching only 46%. This trend of decreasing moisture levels begins in late spring, as the humidity gradually declines from 57% in May to a summer low this month. Following July, the humidity does see a slight uptick in August at 39%, but the general pattern shows a clear seasonal transition from the muggy winter months, featuring 78% in January, to the drier summer. The reduction in humidity not only contributes to the overall comfort during the hot days but also signifies a shift towards the more arid conditions that characterize Pasadena's climate as summer unfolds.
July in Pasadena sees a significant peak in the UV Index, reaching an extreme level of 12, which warns residents and visitors alike to take extra precautions against sun exposure. This trend of heightened UV radiation, escalating from a moderate 4 in January to an extreme 11 in May and June, underscores the importance of sun safety during the summer months. With a burn time of just 10 minutes at this level, it's crucial to apply sunscreen, wear protective clothing, and seek shade to minimize skin damage. As the UV Index trends downward into late summer and fall, with 11 in August and 10 in September, awareness and proactive measures remain essential. For more detailed information about the UV Index throughout the year, visit Pasadena UV Index.
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In July, Pasadena basks in the glow of 381 hours of sunshine, making it the sunniest month of the year. This peak reflects a delightful trend of gradually increasing daylight, starting from 185 hours in January and culminating in July's radiant abundance. The transition from June’s 369 hours to July signifies the height of summer, as locals and visitors alike relish the warm, sunlit days. Following July, the sunlight begins to wane slightly, with August offering 361 hours, but the overall pattern reveals a substantial surge in brightness throughout the spring and summer months. It's a time when the vibrant energy of the sun fuels outdoor activities and community gatherings, perfectly encapsulating the spirit of summer in Southern California.
In Pasadena, the likelihood of sunny weather in July stands at a commendable 76%, making it a delightful time for outdoor activities and summer gatherings. This sunny disposition follows an upward trend that begins in the earlier months, peaking in August with a striking 82% chance of sunshine. Interestingly, July maintains a robust presence in the sunny lineup, with only a slight dip from June's 80%. As the summer progresses, the likelihood of clear skies seems to stabilize, ensuring a warm and bright environment for residents and visitors alike. The consistent sunshine in this vibrant city is a hallmark of its summer charm, providing a picturesque backdrop for all kinds of summertime adventures.
In Pasadena, United States, July shines as one of the peak months for daylight duration, offering a generous 14 hours of sunlight. As the year unfolds, daylight steadily increases from 10 hours in January to a peak in June and July, showcasing the vibrant energy of summer. Following July, the daylight begins to recede, tapering off to 13 hours in August and gradually down to 9 hours by December. This rhythm not only marks the changing seasons but also invites residents and visitors alike to enjoy the outdoor splendor that warmer months bring, making the most of those long, sun-drenched days.
In Pasadena, July ushers in a continuation of the city's gentle breezes, with average wind speeds settling at a modest 1.8 m/s (4 mph). This marks a slight decrease from the previous months, hinting at the calmer, warmer summer days that characterize the area. The trend of diminishing wind speeds from early spring through the summer reflects a typical seasonal pattern, where the heat of July leads to more stable, less blustery conditions. As the month progresses, the whispering winds remain a subtle backdrop to Pasadena's vibrant summer activities, ensuring that even the warmest days carry a hint of refreshing air.
The weather in Pasadena 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 Pasadena and find detailed weather information for every month.
In July, the weather is characterized by warm temperatures, with averages around 25°C (77°F) and highs reaching up to 43°C (109°F). The month is notably dry, with only 2 mm of precipitation and no rainy days, accompanied by a relatively low humidity level of 46%. In contrast, January experiences much cooler temperatures, with an average of 12°C (53°F) and maximums around 29°C (84°F). This month is significantly wetter, receiving 75 mm of rain over 5 days, and features higher humidity at 78%. For more details, check out Pasadena weather in January.
In comparing the weather between July and February, one can see a dramatic difference in temperature and precipitation. July boasts warm conditions with a minimum temperature of 13°C (57°F) and an average of 25°C (77°F), reaching highs of up to 43°C (109°F) on the hottest days. In contrast, February experiences cooler temperatures, with a minimum of 0°C (31°F) and an average of 12°C (54°F), peaking at a comfortable 28°C (83°F). Additionally, July is characterized by a dry climate with virtually no recorded precipitation, while February sees a significant amount of rainfall, totaling 65 mm (2.6 in) over six days, resulting in much higher humidity levels at 82%. For more detailed information on February's weather, visit Pasadena weather in February.
The weather in July and March presents a stark contrast, showcasing the seasonal variations. In July, temperatures soar with a minimum of 13°C (57°F) and an average high of 25°C (77°F), peaking at an impressive 43°C (109°F). The month is characterized by minimal precipitation, receiving only 2 mm (0.1 in) over no rainy days and maintaining a relatively low humidity of 46%. In comparison, March is much cooler with temperatures ranging from a chilly 1°C (34°F) at night to a maximum of 30°C (86°F) during the day. This month sees significant precipitation, totaling 85 mm (3.4 in) over 10 days, coupled with higher humidity levels at 75%. For more details, you can check out Pasadena weather in March.
When comparing the weather in July and April, there are notable differences in temperature and precipitation. July boasts significantly warmer temperatures, with an average of 25°C (77°F) and a maximum reaching up to 43°C (109°F), while April has a cooler average of 17°C (62°F) and a maximum of 34°C (94°F). Additionally, July experiences very low precipitation at just 2 mm and no rainy days, whereas April sees a higher rainfall of 22 mm over two days, coupled with a higher humidity level of 68%. This makes April a noticeably more humid and wetter month compared to the dry heat of July. For more specifics, you can check Pasadena weather in April.
Comparing the weather between May and July reveals significant differences in temperature and humidity levels. In July, temperatures soar with a minimum of 13°C (57°F) and an average of 25°C (77°F), reaching highs of up to 43°C (109°F). In contrast, May features a cooler climate with minimum temperatures of 6°C (43°F) and an average of 18°C (64°F), peaking at 34°C (94°F). Additionally, July enjoys a dry spell with no recorded precipitation, while May experiences moderate rainfall, totaling 16 mm over three days. Humidity is also higher in May at 57%, compared to July’s 46%. For more details, you can check Pasadena weather in May.
In comparing the weather of July and June, July boasts slightly warmer conditions with an average temperature of 25°C (77°F), compared to June's average of 22°C (71°F). The maximum temperatures also climb higher in July, reaching up to 43°C (109°F), while June peaks at a more moderate 40°C (105°F). Surprisingly, both months experience minimal precipitation, with July recording just 2 mm (0.1 in) and June slightly less at 1 mm (0.1 in), and neither month sees any rainy days. However, July's humidity is a bit lower at 46%, while June is more humid at 52%. For a more detailed look at June's weather, you can check out Pasadena weather in June.
In July, temperatures in Pasadena range from a minimum of 13°C (57°F) to a scorching maximum of 43°C (109°F), with an average temperature of 25°C (77°F). The month experiences no precipitation and maintains a humidity level of 46%. Conversely, August features slightly warmer nights with a minimum temperature of 15°C (59°F) and a maximum of 40°C (105°F), while the average remains unchanged at 25°C (78°F). Similar to July, August also records no precipitation, but the humidity dips to 39%. For more detailed insights, you can check Pasadena weather in August.
July and September in Pasadena showcase contrasting yet pleasant weather patterns. July typically enjoys warmer temperatures, with an average of 25°C (77°F) and daily highs reaching up to 43°C (109°F), while September sees a slight dip in temperature, averaging 23°C (74°F) and peaking at 44°C (112°F). Interestingly, both months experience minimal precipitation, with July receiving just 2 mm (0.1 in) and September slightly higher at 4 mm (0.1 in), yet both report no days of rain. Humidity also plays a subtle role, increasing from 46% in July to 48% in September. For a more detailed look at the weather patterns, check out Pasadena weather in September.
In July, the weather typically features warm temperatures, with a minimum of 13°C (57°F) and an average of 25°C (77°F), peaking at a scorching 43°C (109°F). This month is characterized by minimal precipitation, recorded at just 2 mm (0.1 in) across no rainy days and a relatively low humidity level of 46%. In contrast, October brings cooler conditions, with temperatures ranging from a low of 6°C (44°F) to an average of 20°C (68°F), and a maximum reaching 38°C (101°F). October sees slightly more rainfall at 9 mm (0.4 in), spread over one day, and an increase in humidity to 59%. Thus, while July offers hot and dry weather, October presents a more varied climate with cooler temperatures and a bit more moisture. For more details, check out Pasadena weather in October.
In July, the weather is characterized by soaring temperatures, with averages around 25°C (77°F) and maximums reaching up to 43°C (109°F). This month is remarkably dry, exhibiting just 2 mm of precipitation over zero rainy days and maintaining a relatively comfortable humidity level of 46%. In contrast, November brings much cooler temperatures, with an average of 16°C (61°F) and a maximum of 31°C (89°F). This month also sees a significant increase in rainfall, totaling 24 mm over two days, accompanied by higher humidity levels at 72%. For a more detailed look at the November climate, visit Pasadena weather in November.
In July, the weather is characterized by warm temperatures, ranging from a minimum of 13°C (57°F) to a scorching maximum of 43°C (109°F), and an average of 25°C (77°F). Precipitation is virtually nonexistent, with only 2 mm recorded and no rain days, contributing to a relatively low humidity level of 46%.
In contrast, December brings significantly cooler temperatures, with a minimum of 1°C (33°F) and an average of 12°C (53°F), peaking at 27°C (81°F). This month is also marked by increased precipitation, totaling 77 mm (3.1 in) over 5 rainy days, along with higher humidity levels at 76%. For a more detailed look at what to expect weather-wise, check out Pasadena weather in December.
As July unfolds in Pasadena, it brings a unique blend of intense warmth and low humidity, distinguishing it from the more temperate climate of other months. With maximum temperatures soaring up to 43°C (109°F) and an average of 25°C (77°F), this month showcases the peak of summer heat. Interestingly, July also stands out with virtually no precipitation, making it one of the driest months of the year. The average humidity at 46% contributes to a more arid atmosphere, which can feel quite distinct compared to the spring and fall months. For a deeper look into Pasadena's year-round climate trends, visit Pasadena Climate.