Last updated: February 24, 2025
July in Grand Junction, United States, brings a vibrant tapestry of weather characterized by warm temperatures and occasional summer showers. With a maximum soaring to 38°C (101°F) and an average of 25°C (77°F), residents and visitors enjoy plenty of sunshine and outdoor activities. The nights cool down, reaching a comfortable minimum of 9°C (49°F). Despite the warmth, the month experiences light rain, totaling 34 mm (1.3 in) over 7 days, contributing to the area's lush landscapes. The overall humidity remains relatively low at 39%, making July an inviting time to explore the unique beauty of this Colorado gem.
In Grand Junction, United States, July brings a delightful burst of warmth, with temperatures showcasing a significant rise as summer reaches its peak. The average temperature soars to 25°C (77°F), offering a pleasant respite from the cooler months. Overnight, the thermometer barely dips below 9°C (49°F), allowing for cozy evenings. Daytime highs can climb to a scalding 38°C (101°F), making it the hottest month of the year. This trend of increasing temperatures, following a steady climb from the colder winter months, reflects a typical high desert climate, where warm summer days contrast sharply with frigid winters. The warmth of July sets the stage for outdoor activities, inviting residents and visitors alike to enjoy the sun-filled days and starry nights.
In July, Grand Junction experiences a mild increase in precipitation, recording 34 mm (1.3 in) over 7 days. While this amount represents a slight uptick from June's 26 mm (1.0 in), it marks a consistent summer pattern where rain can be both sporadic and refreshing. This trend is reflective of the preceding months, where precipitation generally remains on the lower end, suggesting a relatively dry summer season overall. The July rains are often brief but vital, sustaining the surrounding landscapes and adding a touch of greenery amidst the warm temperatures that characterize the season. As the summer progresses, the precipitation amounts begin to taper off heading into August, further establishing July's position as a transitional month in the region's climate.
In July, Grand Junction experiences a significant drop in humidity, reaching a low of 39%—the same level as August. This decline from the high humidity levels of winter, which hover around 90% in January and February, marks a notable shift towards a drier summer climate. As temperatures rise, the transition from 74% humidity in April to the dry conditions of July is palpable, providing a refreshing contrast. Interestingly, humidity begins to creep up again in September, with levels rising to 53%, reminding residents that the dry heat of summer is merely a precursor to the more moisture-laden fall months ahead.
In July, Grand Junction experiences an extreme UV Index of 12, identical to June's levels, demanding vigilance from sunbathers and outdoor enthusiasts alike, with a swift burn time of just 10 minutes. This peak intensity reflects a broader trend seen from spring into summer, where the UV Index escalates dramatically—from a moderate 4 in January to the extreme highs of late spring and summer. As August rolls in, the UV Index slightly dips to 11, yet the potential for sunburn remains high, illustrating the necessity for sun protection throughout the warm months. For further insights into this trend, you can explore Grand Junction UV Index.
UV Risk Categories
July in Grand Junction shines brightly with 382 hours of glorious sunshine, matching the previous month’s total and signaling the peak of summer's warmth. As the days stretch longer, this sunny disposition reflects a trend of increasing daylight hours from the chilly depths of winter, where January only mustered 172 hours. The gradual climb is notable, with sunshine hours rising steadily from 221 in February to an impressive 360 in May, creating a vibrant outdoor atmosphere. Following July, the sunshine gradually tapers off into late summer and early fall, with August still holding strong at 359 hours, before transitioning into a more subdued September. Whether basking in the sun’s rays or planning for cooler months, July stands out as a pinnacle of warmth and light in the Grand Junction calendar.
In Grand Junction, the likelihood of sunny weather in July stands at 55%, which reveals a slight dip from the preceding month's sunnier disposition of 68%. This midsummer month often showcases a blend of sunshine and warmth, but as the summer progresses, the odds do fluctuate, paving the way for August's impressive 73% chance of sunshine. Notably, September and October also maintain a strong potential for clear skies, with probabilities of 75% and 57%, respectively. As we journey from winter into summer, it's evident that while July's sun-loving reputation holds its ground, the incoming months promise even brighter horizons.
In Grand Junction, the month of July offers a delightful continuation of summer sunshine, boasting 14 hours of daylight that mirror the brightness of June. This peak in daylight extends a warm invitation for outdoor activities, showcasing the region's natural beauty. As the summer progresses into August, daylight begins to wane slightly, with hours dropping to 13, signaling the approach of fall. This gradual decline in daylight is part of a rhythmic pattern throughout the year, where longer days in late spring and summer transition into shorter hours as the seasons shift. From January’s 9 hours to July’s vibrant 14, the change in daylight serves as a captivating backdrop to the diverse experiences available in this stunning corner of the United States.
In July, Grand Junction experiences a gentle breeze, with an average wind speed of 1.9 m/s (4 mph). This represents a slight decrease from June's 2.3 m/s (5 mph) but continues a trend of mild wind speeds throughout the summer months. Interestingly, as the year progresses, the wind tends to peak in the earlier months, with April and May showing the highest speeds. As summer deepens, the winds calm, hinting at the region's characteristic warm climate. With August following closely behind at 2.0 m/s (4 mph), it's evident that while July brings a breather from stronger gusts, the winds remain generally light, creating a pleasant environment for outdoor activities amidst the beautiful Colorado scenery.
The weather in Grand Junction 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 Grand Junction and find detailed weather information for every month.
When comparing the weather in July and January, there's a stark contrast in temperatures and humidity. July features a minimum temperature of 9°C (49°F) and an average of 25°C (77°F), with a maximum soaring up to 38°C (101°F). In contrast, January experiences much colder conditions, with temperatures dropping as low as -23°C (-9°F) and averaging -4°C (24°F), peaking at 12°C (54°F). While both months see precipitation on about 7 days, July's 34 mm (1.3 in) is slightly less than January's 40 mm (1.6 in). Additionally, January's humidity is significantly higher at 90%, compared to July's more comfortable 39%. For more details about January weather, visit Grand Junction weather in January.
When comparing the weather between July and February, the contrast is striking. July boasts mild temperatures with a minimum of 9°C (49°F), averaging a comfortable 25°C (77°F), and can even peak at a scorching 38°C (101°F). With only 34 mm (1.3 in) of precipitation over 7 days and a humidity level of 39%, July tends to be dry and warm. In stark contrast, February experiences much colder weather, with temperatures dropping to a minimum of -23°C (-10°F), averaging -2°C (29°F), and a maximum of 14°C (57°F). February also sees more precipitation, totaling 49 mm (1.9 in) over 9 days, along with a high humidity level of 89%. For more detailed information, check out Grand Junction weather in February.
The weather in July is characterized by warm temperatures, with an average of 25°C (77°F) and a maximum reaching up to 38°C (101°F), while March experiences a much cooler climate, averaging only 4°C (39°F) and a maximum of 23°C (74°F). Precipitation is less frequent in July, with only 34 mm (1.3 in) falling over 7 days, compared to March, which sees higher rainfall at 69 mm (2.7 in) over 11 days. Additionally, humidity levels are significantly lower in July at 39%, compared to the much more humid March, which sits at 81%. For more detailed insights, you can explore Grand Junction weather in March.
In comparing the weather conditions of July and April, one can observe a stark contrast in temperatures and humidity levels. July boasts a much warmer climate, with average temperatures soaring to 25°C (77°F) and maximums reaching 38°C (101°F), while April experiences a cooler average of 9°C (49°F), peaking at 27°C (81°F). Despite similar precipitation levels, with July receiving 34 mm (1.3 in) over 7 days and April slightly less at 33 mm (1.3 in) over 8 days, the humidity in April is significantly higher at 74%, compared to July's 39%. For more insights on the weather during April, you can visit Grand Junction weather in April.
In comparing the weather between July and May, July presents a significantly warmer climate, with average temperatures soaring to 25°C (77°F) and a maximum of 38°C (101°F), while May's temperatures range from a chilly -3°C (27°F) to a more moderate maximum of 32°C (90°F) and an average of 15°C (59°F). Additionally, July experiences less precipitation at 34 mm (1.3 in) across 7 days, compared to May's 42 mm (1.7 in) over 8 days. Humidity also differs notably, with July at 39%, making it feel less muggy than May, which has a higher humidity level of 58%. For more details on May's climate, check out Grand Junction weather in May.
In June, temperatures range from a chilly minimum of 2°C (37°F) to a comfortable average of 22°C (72°F), peaking at 38°C (100°F), while precipitation amounts to 26 mm (1.0 in) over just 4 days, accompanied by a higher humidity level of 47%. In contrast, July sees a warmer average temperature of 25°C (77°F) with minimums at 9°C (49°F) and maximums soaring to 38°C (101°F). Although July has slightly increased precipitation of 34 mm (1.3 in) spread over 7 days, humidity drops to 39%, creating a drier atmosphere compared to June. For a more detailed look at the weather in June, you can check Grand Junction weather in June.
In comparing the weather of July and August, July showcases a slightly warmer climate with an average temperature of 25°C (77°F) and maximum highs reaching 38°C (101°F). In contrast, August experiences cooler temperatures, with an average of 23°C (74°F) and maximums of 36°C (97°F). Both months feature low humidity levels at 39%, but July has slightly more precipitation, totaling 34 mm (1.3 in) over 7 days compared to August's 29 mm (1.1 in) over just 5 days. For more details, you can check Grand Junction weather in August.
In July, the weather typically boasts warm temperatures, with a minimum of 9°C (49°F) and an average of 25°C (77°F), reaching a peak of 38°C (101°F). However, this month also sees some humidity at 39% and relatively low precipitation of 34 mm (1.3 in) over about 7 days. In contrast, September experiences cooler temperatures, with a minimum of 0°C (33°F), an average of 19°C (66°F), and a maximum of 35°C (96°F). The precipitation slightly increases to 40 mm (1.6 in) over 6 days, and humidity rises to 53%, making the air feel more moist. For a detailed look at September weather in Grand Junction, check out Grand Junction weather in September.
In comparing the weather between July and October, notable differences emerge. July features a much warmer climate, with temperatures ranging from a minimum of 9°C (49°F) to a scorching maximum of 38°C (101°F), alongside a lower humidity level of 39%. Precipitation during this month is relatively low, totaling 34 mm (1.3 in) over 7 days. In contrast, October brings a significant dip in temperatures, with averages around 9°C (49°F) and maximums reaching 27°C (81°F). It also experiences a sharper increase in humidity at 72% and higher precipitation levels, registering 55 mm (2.2 in) over 8 days. For a more detailed look at October weather, visit Grand Junction weather in October.
July and November present strikingly different weather conditions. In July, temperatures soar, with a minimum of 9°C (49°F) and daytime averages reaching up to 25°C (77°F), peaking at a scorching 38°C (101°F). The month experiences low precipitation at 34 mm (1.3 in) over about 7 days, accompanied by relatively low humidity at 39%. In contrast, November sees a significant drop in temperatures, with lows plunging to -16°C (4°F) and averages around 4°C (39°F), while highs only reach 20°C (68°F). Precipitation levels decrease slightly to 23 mm (0.9 in), falling over just 4 days, but humidity soars to 84%. This dramatic shift highlights the transition from summer's heat to the chill of late autumn. For more details, check out Grand Junction weather in November.
In July, the weather is warm and inviting, with average temperatures around 25°C (77°F) and highs reaching up to 38°C (101°F). With relatively low humidity at 39% and modest precipitation of 34 mm (1.3 in) over 7 days, it’s a great time to enjoy outdoor activities. In contrast, December brings much colder conditions: temperatures can plummet to a minimum of -22°C (-8°F) and rarely exceed 15°C (59°F), with an average of -3°C (28°F). The humidity is significantly higher at 90%, and precipitation is slightly greater at 37 mm (1.5 in) over the same number of days. For those interested in the specifics of winter weather, check out Grand Junction weather in December.
As July rolls into Grand Junction, it brings with it markedly higher temperatures and a distinct shift in conditions compared to other months. This summer peak sees maximum heat hitting a scorching 38°C (101°F), making it a time for seeking shade and cool refreshments. While the average temperature invites plenty of outdoor activities, the relative humidity remains relatively low at 39%, providing a drier heat. July also marks a brief increase in precipitation, with rainfall seen on about seven days, totaling 34 mm (1.3 in). This combination of warmth and occasional moisture sets July apart, creating a vibrant backdrop for summer adventures. For more detailed insights into local weather patterns, be sure to check out Grand Junction Climate.