Last updated: February 24, 2025
In Sisters, Oregon, July offers a delightful weather experience characterized by a maximum temperature reaching up to 37°C (99°F), paired with a pleasant average temperature of 20°C (69°F). Visitors can anticipate warm days with occasional relief from cooler nighttime lows of around 0°C (33°F). With only 6 mm (0.3 in) of precipitation occurring over 1 day, the month is predominantly dry, making it ideal for outdoor activities. The humidity level at 78% adds a touch of comfort to the warm climate, enhancing the overall summer vibe in this charming town. Whether exploring nature or enjoying local festivities, July in Sisters is a season of warmth and vibrancy, inviting all to embrace the beauty of summer.
In Sisters, Oregon, July heralds the peak of summer, showcasing a delightful shift from the chilly depths of winter to warm, sun-kissed days. With a minimum temperature of 0°C (33°F) and an average of 20°C (69°F), the month offers a pleasant escape, while maximum temperatures can soar to a sizzling 37°C (99°F). This trend of rising warmth contrasts sharply with the preceding months, where cold winter temperatures linger until June, before a significant leap into the summer heat. Notably, July maintains a remarkable consistency in warmth alongside August, making it an ideal time for outdoor activities. As the vibrant green landscapes bask under the sun, it's clear that Sisters transforms into a summer paradise, showcasing the best of what the season has to offer.
In the picturesque town of Sisters, July marks a significant drop in precipitation, with only 6 mm (0.3 inches) recorded, making it one of the driest months of the year. This stark contrast to the wetter months earlier in the year—such as February with 109 mm (4.3 inches)—highlights the region's distinctive seasonal shifts. Rainfall in July is minimal, averaging just 1 day of precipitation, allowing residents and visitors alike to bask in the summer sunshine and enjoy the outdoors. With such limited rainfall, July sets the tone for a dry summer, where vibrant landscapes flourish under the warm, clear skies, paving the way for the beautiful fall colors that follow. This trend of reduced precipitation continues into August, creating a perfect backdrop for various outdoor activities in this charming community.
In Sisters, United States, the July humidity dips to 78%, marking a notable shift from the higher levels experienced in the earlier months. As the year progresses, there's a steady decline in humidity, from a peak of 87% in February to 80% in May, leading to July's more comfortable conditions. This trend continues into August, where humidity drops even further to 62%, contributing to a delightfully dry summer climate. However, as the year transitions back into fall, humidity levels rebound, peaking again in November and December at 88%. This cyclical pattern not only emphasizes the region's distinctive seasonal changes but also highlights the appeal of July's relatively pleasant humidity for outdoor activities.
In July, Sisters, Oregon experiences a very high UV Index of 10, maintaining the extreme intensity that begins in May and persists through August. This trend highlights the peak summer months when residents and visitors alike should exercise caution to protect their skin, as the burn time is a quick 15 minutes. Following the gradual climb from a moderate exposure in January, the UV levels soar during mid-summer, emphasizing the importance of sun safety during this time. As the sun’s rays reach their zenith, peaks in UV exposure demand vigilance and protection. For detailed insights on the UV Index throughout the year, visit Sisters UV Index.
UV Risk Categories
In Sisters, United States, July shines as a crowning jewel of sunshine, boasting an impressive 409 hours of daylight, the highest of the year. This peak follows a steady climb from 108 hours in January to June's abundant 365 hours. The summer sun not only enhances outdoor adventures but also sets the stage for vibrant community events and gatherings. Following July, there is a slight tapering to 367 hours in August, indicating that while the days remain bright, the explosive warmth of mid-summer is gradually yielding to the cooler tones of autumn. Overall, the trend reveals a thrilling journey through longer days, making July in Sisters a true celebration of sunlight and summer.
As July approaches in Sisters, United States, the likelihood of sunny weather significantly increases, reaching an impressive 83%. This month stands out as a peak in sunshine compared to the earlier months, where the chances fluctuate between a modest 21% in January and 64% in June. Following July, August still enjoys a healthy 75% chance of sun, indicating a strong summer season characterized by bright and warm days. The progression from early spring to mid-summer reveals a clear trend: as the year advances, so too does the promise of clearer skies, making July a prime time for outdoor activities in this charming locale.
In July, Sisters, United States, enjoys a peak in daylight duration, basking in 15 hours of sunlight. This vibrant month follows the gradual increase from 9 hours in January to a maximum of 15 hours reached in June and held steady in July. As summer unfolds, daylight allows for extended outdoor activities and exploration, creating a palpable sense of energy in the community. After July, daylight begins to recede, signaling the onset of autumn with a swift decline to 13 hours in August, followed by further reductions in the months ahead, highlighting the cyclical rhythm of nature that shapes life in Sisters. Each shift in daylight serves as a reminder of the changing seasons and the beauty each brings.
In Sisters, United States, the month of July typically sees a mild breeze, with an average wind speed of 2.2 m/s (5 mph). This marks a slight decline from the previous month, continuing a trend of generally low wind speeds that are consistent throughout the summer. The gentle winds of July create a serene atmosphere, perfect for outdoor activities and enjoying the stunning natural beauty of the region. As the summer heat peaks, the calming air currents provide a refreshing reprieve, reminding us that even in the height of summer, there’s a sense of tranquility in the wind. Interestingly, the wind speeds gradually rise again in the fall, fostering a dynamic climate that keeps the seasons ever-changing in this picturesque locale.
The weather in Sisters 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 Sisters and find detailed weather information for every month.
July and January present stark contrasts in weather. July boasts a temperate climate with an average temperature of 20°C (69°F) and can soar as high as 37°C (99°F), accompanied by minimal precipitation of just 6 mm (0.3 in) over a single day. The humidity during this month is relatively comfortable at 78%. In contrast, January offers a much colder experience, where temperatures drop to a minimum of -24°C (-11°F) and average around 0°C (33°F), peaking at a mild 14°C (57°F). This month sees significant precipitation, with 93 mm (3.7 in) falling over 13 days, and higher humidity levels at 86%. For a closer look at the weather conditions in January, you can check Sisters weather in January.
July and February exhibit strikingly contrasting weather conditions. In July, temperatures range from a cool 0°C (33°F) at their lowest to a sweltering maximum of 37°C (99°F), with an average of 20°C (69°F). This month is relatively dry, receiving only 6 mm (0.3 in) of precipitation over just a day, and humidity sits at 78%. In contrast, February experiences much colder weather, with temperatures dipping as low as -22°C (-7°F), averaging around 0°C (33°F), and peaking at 17°C (62°F). It is also considerably wetter, with 109 mm (4.3 in) of precipitation spread over 15 days, and a higher humidity level of 87%. For more details on the weather in Sisters during this chilly month, you can check out Sisters weather in February.
In comparing the weather of July and March, a stark contrast emerges. July experiences much warmer temperatures, with a minimum of 0°C (33°F) and an average of 20°C (69°F), peaking at a sweltering 37°C (99°F). In contrast, March is characterized by cooler temperatures, with a minimum plunging to -15°C (5°F) and an average of just 3°C (38°F), maxing out at 19°C (67°F). Additionally, July sees minimal precipitation, averaging only 6 mm (0.3 in) over just one day, while March is far wetter, receiving 66 mm (2.6 in) spread across 13 days. Humidity levels also differ, with July at 78% and March slightly higher at 86%. For more details on the weather during this transitional month, visit Sisters weather in March.
In comparing the weather between April and July, a stark contrast emerges. July boasts a much warmer temperature range, with minimums of 0°C (33°F) and average highs reaching 37°C (99°F), while April experiences colder conditions, seeing minimums plummet to -8°C (17°F) and an average high of only 28°C (83°F). Additionally, precipitation levels differ significantly; July is relatively dry with just 6 mm (0.3 in) of rain over a single day, whereas April can expect much more moisture, totaling 67 mm (2.6 in) spread over 11 days. Humidity is also high in both months, but it is slightly lower in July at 78% compared to April's 85%. For more detailed information, you can check Sisters weather in April.
In comparing the weather between July and May, it's clear that July offers warmer temperatures, with averages around 20°C (69°F) and a maximum reaching 37°C (99°F), while May has a cooler average of 12°C (53°F) and peaks at 31°C (88°F). July experiences significantly less precipitation, averaging only 6 mm (0.3 in) over just 1 day, compared to May's 37 mm (1.5 in) spread over 8 days. The humidity levels are quite similar, with July at 78% and May slightly higher at 80%. For a closer look at May's weather conditions, you can visit Sisters weather in May.
In comparing the weather in June and July, we can see some notable differences. July experiences a higher average temperature of 20°C (69°F) compared to June's 16°C (61°F), with July also boasting a maximum temperature of 37°C (99°F) against June's peak of 42°C (108°F). Precipitation is significantly lower in July, with only 6 mm (0.3 in) over just 1 day, whereas June sees more rain, accumulating 22 mm (0.9 in) across 6 days. Additionally, humidity is slightly lower in July at 78% compared to June's 82%. For more detailed insights into June's weather, visit Sisters weather in June.
In comparing the weather of July and August, both months show a strikingly similar temperature range, with July recording a maximum of 37°C (99°F) and August reaching slightly higher at 100°F. The average temperatures remain close, with July at 20°C (69°F) and August at 20°C (68°F). However, August experiences slightly more precipitation, with 8 mm (0.3 in) spread over 2 days compared to July’s 6 mm (0.3 in) on just 1 day. Additionally, humidity levels decrease in August, falling from 78% in July to 62%, making the air feel a bit less muggy. For more detailed weather information, you can visit Sisters weather in August.
July and September exhibit notable differences in weather patterns. July boasts a warm average temperature of 20°C (69°F), with highs reaching a scorching 37°C (99°F) and minimal rainfall of just 6 mm (0.3 in) over 1 day, creating a humid environment at 78% humidity. In contrast, September experiences cooler temperatures, dropping to an average of 15°C (59°F), with a minimum of -3°C (26°F) and the same maximum temperature of 37°C (99°F) as July. However, September sees increased precipitation at 36 mm (1.4 in) spread across 5 days, alongside a decrease in humidity to 59%. For more details on the weather in Sisters during September, check out Sisters weather in September.
July and October exhibit striking differences in weather patterns. In July, temperatures range from a minimum of 0°C (33°F) to a scorching maximum of 37°C (99°F), with an average of 20°C (69°F). The month sees very little precipitation, only about 6 mm (0.3 in) over the course of 1 day, and maintains a high humidity level of 78%. In contrast, October experiences cooler temperatures, with a minimum of -9°C (16°F) and a maximum of 30°C (87°F), averaging around 8°C (47°F). This month brings significantly more precipitation, totaling 43 mm (1.7 in) over 7 days, while still holding onto the same humidity level of 78%. For more detailed information on this month’s weather, check out Sisters weather in October.
In July, the weather tends to be warm and dry, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 37°C (99°F) and an average of 20°C (69°F). The humidity is relatively high at 78%, but the precipitation is low, with only about 6 mm (0.3 in) falling over just one day. In contrast, November brings a significant shift, with temperatures dropping drastically—mining at -18°C (0°F), averaging 3°C (38°F), and peaking at 22°C (71°F). November is also much wetter, seeing around 74 mm (2.9 in) of precipitation over 11 days, and the humidity slightly increases to 88%. For more details, you can check out Sisters weather in November.
The weather in July contrasts sharply with that of December. In July, temperatures range from a minimum of 0°C (33°F) to a scorching maximum of 37°C (99°F), with an average of 20°C (69°F). The month sees minimal precipitation, averaging just 6 mm (0.3 in) over a single rainy day and a humidity level of 78%. In stark contrast, December experiences much colder temperatures, starting at a minimum of -19°C (-2°F) and averaging 0°C (33°F), with a maximum of 18°C (65°F). Precipitation is significantly higher in December, with totals reaching 93 mm (3.7 in) over 14 days, accompanied by increased humidity at 88%. For a detailed look at weather conditions during this time, visit Sisters weather in December.
In July, Sisters experiences a remarkable shift in weather, with temperatures reaching a maximum of 37°C (99°F), offering a stark contrast to the cooler months. This summer heat is complemented by an average temperature of 20°C (69°F), making it a perfect time for outdoor activities. With only 6 mm of precipitation over just one day, the month is predominantly dry, allowing residents and visitors to soak up the sun. The humidity level of 78% creates a warm, sometimes sticky atmosphere, but nothing beats the vibrant energy of summer days. To explore how this July weather compares to other months, visit Sisters Climate.