July Weather in Big Sky, United States

Last updated: February 24, 2025

Experience the captivating weather of Big Sky, United States, in July, where temperatures dance between a comfortable average of 15°C (60°F) and a warm maximum of 29°C (85°F). While the region enjoys pleasant summer days, be prepared for a few cooler moments, as temperatures can drop to a brisk -2°C (29°F) at night. Rainfall is not uncommon, with 44 mm (1.7 in) of precipitation spread over 12 days, contributing to a humidity level of 74% that adds a refreshing touch to the mountain air. Embrace the dynamic climate that makes July in Big Sky a unique and invigorating experience!

July Temperature in Big Sky

July in Big Sky, United States, marks a delightful peak in temperatures, offering a refreshing contrast to the frigid winter months. With a minimum temperature of -2°C (29°F) and an average of 15°C (60°F), residents and visitors alike can enjoy the mountainous landscape under more temperate conditions. The maximum can reach a pleasant 29°C (85°F), making it an ideal time for outdoor activities. As the summer sun bathes the area in warmth, the stark transition from the depths of winter, where January's chill can dip to -28°C (-19°F), becomes all the more pronounced. This seasonal shift not only enhances the natural beauty of Big Sky but also invites people to embrace a vibrant range of recreational pursuits, from hiking to wildlife watching. The warmth of July stands as a reminder of the region’s diverse climate, showcasing its ability to transform dramatically throughout the year.

July Weather in Big Sky: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Big Sky, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec161525303850605748312216
Data source: Temperature data for Big Sky generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Big Sky

In July, Big Sky experiences a notable dip in precipitation, receiving 44 mm (1.7 in) over 12 days, which marks a contrast to the heavier rains of June. This decrease may signal a brief midsummer respite, as the area transitions into late summer. With precipitation levels lower than both the preceding and following months, July provides a dry window, ideal for outdoor activities amid the stunning landscapes. The overall trend shows that, while July remains relatively mild in rainfall, Big Sky's weather patterns begin to shift again as the summer months progress, with August bringing slightly increased precipitation at 56 mm (2.2 in).

July Precipitation Trends in Big Sky

The chart displays monthly precipitation patterns in Big Sky, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec4282659089102445660776150
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Big Sky

In July, Big Sky, United States experiences humidity at 74%, marking a continuation of the steady decline that began in the preceding months. This trend, which sees humidity drop from a high of 93% in January to its seasonal low, reflects the transition into summer. As temperatures rise, the air feels drier, with humidity decreasing further to 69% in August. This graceful shift highlights the region’s seasonal variations, showcasing how Big Sky evolves from the moisture-heavy winter months to a more refreshing summer atmosphere, ultimately enhancing the appeal of outdoor activities during this time.

July Average Humidity in Big Sky

This chart illustrates the average monthly humidity levels in Big Sky, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%83%79%76%74%69%67%72%89%94%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Big Sky

In Big Sky, United States, July reaches a critical point for UV exposure, with an index of 11, categorizing it as extreme. This level indicates a significant risk of harm from unprotected sun exposure, with a burn time of just 10 minutes. Following the peak UV index of June, July maintains a similarly high level, showcasing a summer trend that emphasizes the need for protection from intense sunlight. Comparatively, as the months transition towards fall, the UV index starts to decline, signaling a gradual reduction in solar intensity. As always, staying informed about the UV conditions can ensure safety during outdoor activities. For more details, visit the Big Sky UV Index.

Maximum UV Index Levels in Big Sky for July

The chart shows the monthly maximum UV Index (UVI) for Big Sky in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3479111211109642
Data source: Big Sky July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

July Sunshine in Big Sky

In the heart of July, Big Sky, United States, basks in an impressive 392 hours of sunshine, marking the peak of the summer season. This month continues a delightful upward trend in solar exposure that begins in the depths of winter. From a mere 139 hours in January, the increase in daylight hours escalates steadily through spring, culminating in the vibrant warmth of summer. June, with its 356 hours, sets the perfect stage for July's sunshine spectacle, while August retains a significant 349 hours, reminding us that summer's glow lingers just a bit longer. As the seasons transition, however, sunshine hours gradually decline, leading to a cozy autumn. Such patterns not only enhance outdoor adventures but also enrich the spirit of those who call this enchanting region home.

Monthly Sunshine Duration in Big Sky: July Highlighted

The July sunshine duration represents the total number of hours Big Sky experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec139h170h264h275h322h356h392h349h284h245h191h177h
Data source: Big Sky July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Big Sky During July

In July, Big Sky, United States, enjoys a favorable 62% chance of sunny weather, making it one of the sunniest months of the year. This trend of increasing sunshine begins in June, where the likelihood rises sharply to 73%, indicating the arrival of summer's warmth. While May and April see lower probabilities at 39% and 45%, respectively, the transition to sunnier days is evident. Following July, the sunshine propensity dips slightly in August to 55%, yet remains significantly higher than the earlier months of the year. Overall, the July weather invites outdoor activities and explorations, influenced by the clear skies and vibrant summer atmosphere that peak during this time.

Percentage of Sunny Days in July in Big Sky

The chart illustrates the percentage of sunny days in Big Sky throughout the year, with July highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Big Sky experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%27%48%45%39%73%63%55%72%42%29%21%
Data source: Big Sky July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Big Sky in July

In July, Big Sky, United States enjoys an impressive 15 hours of daylight, maintaining the peak brightness seen throughout the summer months. This extended sunlight allows residents and visitors alike to savor the beauty of the outdoors, from hiking scenic trails to engaging in vibrant community events. Following a gradual increase in daylight from just 9 hours in January, the region basks in nearly continuous light from late spring through summer. Interestingly, as August approaches, daylight begins to wane slightly to 13 hours, hinting at the forthcoming transition to autumn. This rhythmic ebb and flow not only enhances the region's charm but also supports a vibrant lifestyle filled with exploration and adventure during the sun-drenched days of July.

Average Daylight Hours in Big Sky for July

The chart illustrates the variation in daylight duration in Big Sky throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 10m10h 24m11h 57m13h 33m14h 54m15h 34m15h 12m13h 59m12h 27m10h 53m9h 29m8h 46m
Data source: Big Sky daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Big Sky

In July, the wind in Big Sky, United States, tends to whisper softly, with an average speed of 1.9 m/s (4 mph), marking it as the calmest month of the year. This gentle breeze stands in stark contrast to the blustery conditions of later months, particularly December, when winds can whip up to 3.1 m/s (7 mph). Throughout the year, wind speeds oscillate subtly, peaking in November at 2.8 m/s (6 mph). While January, October, and November enjoy slightly higher averages, July’s calm, mellow winds invite a serene atmosphere, perfect for those seeking a tranquil escape in the summer's warm embrace. As summer transitions into fall, the prevailing winds gradually intensify, underscoring a seasonal rhythm that highlights the unique meteorological character of the region.

Average July Wind Speed in Big Sky

The chart displays monthly wind speed patterns in Big Sky, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.42.32.42.12.51.9 m/s2.22.32.52.83.1
Data source: Big Sky July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Big Sky Compares to Other Months

The weather in Big Sky 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 Big Sky and find detailed weather information for every month.

In July, the weather is significantly milder, with temperatures ranging from a minimum of -2°C (29°F) to a comfortable maximum of 29°C (85°F) and an average of 15°C (60°F), alongside relatively low humidity at 74%. Rainfall occurs on about 12 days, totaling 44 mm (1.7 in). In stark contrast, January features much harsher conditions, with temperatures plummeting to a minimum of -28°C (-19°F) and only reaching a maximum of 3°C (37°F), averaging -9°C (16°F). The month sees slightly less precipitation, at 42 mm (1.6 in), but with higher humidity at 93%, and precipitation spread over 11 days. For a more detailed view of January weather specifics, you can check out Big Sky weather in January.

July and February present stark contrasts in weather patterns. July enjoys milder temperatures, with a minimum of -2°C (29°F), an average of 15°C (60°F), and a maximum reaching up to 29°C (85°F). Humidity levels hover around 74%, with precipitation totaling 44 mm (1.7 in) over approximately 12 days. In contrast, February experiences much harsher conditions, with temperatures plummeting to a minimum of -33°C (-27°F) and an average of -9°C (15°F), while the maximum only reaches 5°C (42°F). This month sees higher precipitation at 82 mm (3.2 in) over 17 days, accompanied by increased humidity at 92%. Those interested in more detailed February weather information can check Big Sky weather in February.

When comparing the weather in July and March, a stark contrast emerges. July boasts a milder temperature range with minimums of -2°C (29°F), averaging 15°C (60°F), and reaching a maximum of 29°C (85°F). In terms of precipitation, it experiences 44 mm (1.7 in) over 12 days, accompanied by a comfortable humidity level of 74%. In contrast, March is much colder, with minimum temperatures plunging to -27°C (-17°F), an average of -4°C (26°F), and a maximum of just 12°C (53°F). This month sees heavier precipitation at 65 mm (2.6 in) spread across 13 days, along with a notably higher humidity of 89%. For more detailed weather insights, you can visit Big Sky weather in March.

In comparing the weather between April and July, it's clear that July experiences significantly warmer temperatures, ranging from a minimum of -2°C (29°F) to a maximum of 29°C (85°F), with an average of 15°C (60°F). In contrast, April is much cooler, with temperatures fluctuating from a minimum of -20°C (-4°F) to a maximum of 15°C (59°F), averaging -1°C (30°F). Additionally, July has less precipitation, with 44 mm (1.7 in) over 12 days, compared to April's more substantial 90 mm (3.6 in) falling over 16 days. Humidity levels are also slightly lower in July at 74%, compared to April's 83%. For a closer look at what to expect during April, you can visit Big Sky weather in April.

Comparing the weather in July and May reveals significant differences in temperature and precipitation patterns. July generally features much warmer temperatures, with a minimum of -2°C (29°F), an average of 15°C (60°F), and a maximum of 29°C (85°F), while May has lower temperatures, with a minimum of -11°C (13°F), an average of 3°C (38°F), and a maximum of 21°C (70°F). Additionally, July experiences less precipitation, totaling 44 mm (1.7 in) over 12 days, compared to May's higher totals of 89 mm (3.5 in) spread over 19 days. Humidity is slightly lower in July at 74%, compared to May's 79%, contributing to the overall drier feel of the summer month. For more details on May weather, check out Big Sky weather in May.

In comparing the weather between June and July, we see a notable shift in temperatures and precipitation patterns. July features a wider temperature range, with a minimum of -2°C (29°F) and a maximum of 29°C (85°F), resulting in an average of 15°C (60°F). In contrast, June presents cooler averages, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 27°C (81°F), leading to an average of just 10°C (51°F).

Despite July experiencing milder conditions overall, it has less precipitation, with 44 mm (1.7 in) of rain recorded over 12 days, compared to June's significant 102 mm (4.0 in) over 16 days. Humidity levels remain fairly consistent, with July at 74% and June slightly higher at 76%. For a more detailed look at June weather, you can check Big Sky weather in June.

In July, temperatures ranged from a minimum of -2°C (29°F) to a maximum of 29°C (85°F), with an average temperature of 15°C (60°F). The month experienced 44 mm (1.7 in) of precipitation over 12 days, accompanied by relatively high humidity levels of 74%. In contrast, August maintained a similar temperature range, with the same minimum and maximum temperatures but a slightly lower average of 14°C (58°F). Precipitation increased to 56 mm (2.2 in) over 11 days, while humidity decreased to 69%. For more detailed insights into August weather, visit Big Sky weather in August.

In July, the weather is generally warmer, with average temperatures reaching around 15°C (60°F) and a peak of 29°C (85°F), making it perfect for summer activities. However, it also experiences relatively high humidity at 74% and about 44 mm (1.7 in) of precipitation over 12 days. In contrast, September sees a notable drop in average temperature to 9°C (48°F), with a minimum of -9°C (16°F), although it can still peak at a warm 28°C (83°F). The precipitation increases slightly to 59 mm (2.3 in), but it falls over fewer days, totaling just 8. Humidity in September also decreases to 67%, contributing to a cooler and crisper atmosphere. For more insights on September weather, you can visit Big Sky weather in September.

In July, temperatures in Big Sky range from a minimum of -2°C (29°F) to a maximum of 29°C (85°F), with an average temperature of 15°C (60°F). The month sees about 44 mm (1.7 in) of precipitation over approximately 12 days, along with a relatively high humidity level of 74%.

In contrast, October brings much colder conditions, with temperatures dropping to a minimum of -30°C (-22°F) and an average of -1°C (31°F), while reaching a maximum of 20°C (68°F). The precipitation increases to 77 mm (3.0 in) over 14 days, and humidity remains slightly lower at 72%. For more details on what to expect, you can check out Big Sky weather in October.

July and November present starkly contrasting weather conditions. In July, temperatures range from a minimum of -2°C (29°F) to a pleasant average of 15°C (60°F), peaking at a maximum of 29°C (85°F). The month experiences relatively low precipitation at 44 mm (1.7 in) over 12 days, with humidity averaging 74%. In comparison, November brings much colder temperatures, with a minimum of -22°C (-7°F) and an average of -5°C (23°F), reaching a maximum of only 12°C (54°F). Precipitation increases to 61 mm (2.4 in) over 13 days, accompanied by higher humidity at 89%. For more details on what to expect, you can check Big Sky weather in November.

July and December present a stark contrast in weather conditions. In July, temperatures range from a chilly -2°C (29°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (60°F). This month experiences moderate rainfall of 44 mm (1.7 in) over 12 days, accompanied by a humidity of 74%. In stark contrast, December brings much colder temperatures, dipping as low as -27°C (-15°F) and averaging -9°C (16°F), with daytime highs reaching only 7°C (44°F). Precipitation slightly increases to 49 mm (1.9 in) occurring over 13 days, while humidity rises significantly to 94%. For a closer look at December weather, check out Big Sky weather in December.

Compare Big Sky's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Big Sky

July in Big Sky is characterized by warmer temperatures that stand out from the cooler months, offering an average feel that encourages outdoor adventures and exploration. Although summer reigns, occasional rain showers remind us of the region's ever-changing climate, with a noticeable humidity level that can add to the robustness of the air. The combination of pleasant sunshine and refreshing precipitation creates a unique summer experience, making July a vibrant time to visit. For a deeper dive into all climatic aspects, be sure to check out Big Sky Climate.