July Weather in Coulee Dam, United States

Last updated: February 24, 2025

In July, Coulee Dam, United States experiences a diverse climate, characterized by maximum temperatures reaching 41°C (107°F), creating an impressively warm atmosphere. The average temperature hovers around 24°C (75°F), providing a comfortable yet hot summer month. With a minimum temperature of 11°C (51°F) to cool off the nights, July presents a notable temperature range. Precipitation is minimal, with only 4 mm (0.1 in) recorded over just one day, while humidity remains relatively high at 77%, adding a touch of mugginess to the warm days. This combination of heat and humidity offers a unique environment for those who visit or reside in the area during this time.

July Temperature in Coulee Dam

In July, Coulee Dam experiences its warmest temperatures of the year, with minimums averaging around 11°C (51°F) and peaking at a scorching 41°C (107°F) during the day. The average temperature settles at a comfortable 24°C (75°F), making it an ideal time for outdoor activities. This leap into warmth is a stark contrast to the winter months, where temperatures plummet as low as -24°C (-11°F) in January, showcasing a significant seasonal shift. As summer unfolds, residents and visitors alike revel in the sun-soaked days, accentuated by the vibrant blue skies and the nearby Columbia River, making July a quintessential example of Coulee Dam's climatic extremes and a highlight of its annual weather cycle.

July Weather in Coulee Dam: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Coulee Dam, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec282839485967757362473729
Data source: Temperature data for Coulee Dam 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 Coulee Dam

In July, Coulee Dam experiences a significant drop in precipitation, with only 4 mm (0.1 in) recorded over just one day of the month. This pattern highlights a trend of decreasing rainfall as summer sets in, following the lush wetness of the earlier months. June already showed a substantial decline to 13 mm (0.5 in), and July continues this trajectory, making it one of the driest months of the year. As the heat of summer peaks, the region transitions to a drier climate, setting the stage for the upcoming months when precipitation levels will gradually begin to rise again. This cyclical pattern underscores the unique climatic shifts experienced in Coulee Dam throughout the year.

July Precipitation Trends in Coulee Dam

The chart displays monthly precipitation patterns in Coulee Dam, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6747464037134824425157
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Coulee Dam

In July, Coulee Dam experiences a noticeable shift in humidity, with levels dropping to 77%, mirroring the trend seen from May through June. This slight decrease reflects a summer atmosphere that contrasts sharply with the cooler, more humid winter months, where humidity peaks at 86% in January and February. As the year progresses, humidity steadily declines, reaching a low of 62% in August before rising again in the fall. The overall trend indicates a transition from the damp chill of winter to the relatively drier warmth of summer, making July a month of refreshing respite for residents and visitors alike.

July Average Humidity in Coulee Dam

This chart illustrates the average monthly humidity levels in Coulee Dam, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%82%77%79%77%62%60%80%87%86%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Coulee Dam

July in Coulee Dam sees a consistently high UV Index of 9, categorizing it as very high exposure risk. This month mirrors June's intensity, where sunbathers and outdoor enthusiasts should be particularly cautious, as the burn time is a mere 15 minutes for unprotected skin. The trend of increasing UV levels from earlier months underscores the growing need for preventative measures—sunscreen, protective clothing, and shade are essential to enjoy the outdoors safely. Continuing into August, the UV Index remains at this elevated level, so it's crucial to stay informed and take appropriate precautions. For more details on UV trends throughout the year, check out the Coulee Dam UV Index.

Maximum UV Index Levels in Coulee Dam for July

The chart shows the monthly maximum UV Index (UVI) for Coulee Dam 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.
JanFebMarAprMayJunJulAugSepOctNovDec245689997532
Data source: Coulee Dam 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 Coulee Dam

July shines brightly in Coulee Dam, boasting an impressive 418 hours of sunshine, making it the sunniest month of the year. This peak illuminates a clear trend of increasing daylight as the year progresses, starting from a modest 98 hours in January and gradually rising to July's zenith. Following this summer high, August still enjoys ample sunlight with 363 hours, though a gradual decline begins as the days shorten toward fall. This gradual ebbing of sunshine is mirrored in the months that follow, where hours steadily drop to 240 hours in October and further decline into the winter months. Overall, the data paints a vibrant picture of seasonal warmth, revealing how July stands as the bright climax of Coulee Dam's yearly sunlit journey.

Monthly Sunshine Duration in Coulee Dam: July Highlighted

The July sunshine duration represents the total number of hours Coulee Dam 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.
JanFebMarAprMayJunJulAugSepOctNovDec98h171h246h292h355h381h418h363h291h240h153h121h
Data source: Coulee Dam July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Coulee Dam During July

As the summer sun approaches, Coulee Dam, United States, enjoys a remarkable increase in sunny days, with July boasting an impressive 88% chance of sunshine. This peak is part of a broader trend evident from the year’s progression; each month leading up to July experiences a gradual rise in sun exposure, from 25% in January to 63% in June. The consistent uptick suggests that as the region bids farewell to colder months, residents can expect a vibrant and bright July, perfect for outdoor activities. Interestingly, while August retains a healthy 63% chance, it marks a slight decline from July’s peak, hinting that summer may be winding down as fall approaches. Overall, July stands out as the most sun-drenched month in Coulee Dam, inviting both locals and visitors to bask in the warm embrace of the season.

Percentage of Sunny Days in July in Coulee Dam

The chart illustrates the percentage of sunny days in Coulee Dam 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 Coulee Dam experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%35%44%56%59%63%88%63%54%46%24%25%
Data source: Coulee Dam July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Coulee Dam in July

In July, Coulee Dam enjoys a full 15 hours of daylight, mirroring the abundant light of June. This peak in daylight hours signals the height of summer, where long, sunny days facilitate outdoor activities and community gatherings. As the month progresses, the daylight begins to wane, with August already showing a slight decrease to 14 hours. This gradual transition highlights an interesting trend where daylight increases briskly from January through June, culminating in the summer solstice, before tapering off again in the latter part of the year. The rhythm of sunlight in Coulee Dam not only shapes the seasonal landscape but also influences the lifestyle and activities of its residents.

Average Daylight Hours in Coulee Dam for July

The chart illustrates the variation in daylight duration in Coulee Dam throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 52m10h 15m11h 57m13h 41m15h 11m15h 57m15h 31m14h 11m12h 30m10h 46m9h 13m8h 26m
Data source: Coulee Dam daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Coulee Dam

In July, the winds in Coulee Dam, United States exhibit a gentle but consistent breeze with an average wind speed of 2.5 m/s (6 mph). This marks a slight dip from the slightly more robust winds earlier in the year, especially as spring transitions into summer. May and June both featured slightly higher winds at 2.9 m/s and 2.8 m/s, respectively, contributing to a vibrant, lively atmosphere ideal for outdoor activities. The overall trend suggests that while July's winds may soften a touch, they remain fairly stable compared to the milder months of late summer and fall. With consistent speeds persisting throughout this season, Coulee Dam is a great spot for enjoying leisurely summer days complemented by a refreshing breeze.

Average July Wind Speed in Coulee Dam

The chart displays monthly wind speed patterns in Coulee Dam, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.72.42.82.92.82.5 m/s2.52.32.42.32.3
Data source: Coulee Dam July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Coulee Dam Compares to Other Months

The weather in Coulee Dam 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 Coulee Dam and find detailed weather information for every month.

The weather in July is characterized by warm temperatures, with an average of 24°C (75°F) and peaks reaching as high as 41°C (107°F), complemented by minimal precipitation of just 4 mm (0.1 in) over a single day. In stark contrast, January brings frigid conditions, with average temperatures plummeting to -2°C (28°F) and minimums reaching as low as -24°C (-11°F). This winter month experiences substantially higher precipitation at 67 mm (2.6 in) across 11 days, alongside increased humidity levels of 85%. For more detailed insights, you can explore Coulee Dam weather in January.

July and February present a stark contrast in weather conditions. In July, temperatures range from a minimum of 11°C (51°F) to a scorching maximum of 41°C (107°F), with an average of 24°C (75°F) and minimal precipitation at only 4 mm (0.1 in) over just one day. The humidity sits at a moderate 77%. In contrast, February brings frigid temperatures, with a minimum of -15°C (4°F), an average of -2°C (28°F), and a maximum of just 11°C (53°F). This month experiences significantly higher precipitation at 47 mm (1.9 in) over approximately nine days, coupled with a higher humidity level of 86%. For more details on winter weather, check out Coulee Dam weather in February.

The contrast between July and March weather is striking, with July boasting much warmer temperatures, ranging from a minimum of 11°C (51°F) to a scorching maximum of 41°C (107°F) and an average of 24°C (75°F). In stark comparison, March experiences much cooler weather, with temperatures dipping to a minimum of -18°C (0°F) and peaking at just 18°C (65°F), with an average temperature of only 4°C (39°F). Additionally, July sees minimal precipitation, with just 4 mm (0.1 in) over one day, while March is much wetter, receiving 46 mm (1.8 in) over eight days. The humidity levels are also relatively high in both months, with July at 77% and March slightly higher at 86%. For more details, check out Coulee Dam weather in March.

When comparing the weather in July and April, there are striking differences in temperature and precipitation patterns. July boasts a significantly warmer climate, with average temperatures reaching 24°C (75°F) and maximum highs soaring to 41°C (107°F). In contrast, April experiences much cooler conditions, with average temperatures around 9°C (48°F) and a maximum of only 26°C (78°F). Additionally, April is notably wetter, receiving 39 mm (1.6 in) of precipitation over 7 days, compared to July's minimal 4 mm (0.1 in) spread across just 1 day. Humidity levels are also slightly higher in April at 82%, compared to 77% in July. For a closer look at the specifics of April's weather, you can check out Coulee Dam weather in April.

When comparing the weather in July and May, it's evident that July experiences significantly warmer temperatures, with a minimum of 11°C (51°F) and an average high reaching 41°C (107°F). In contrast, May has a much cooler temperature range, with a minimum of 1°C (34°F) and an average temperature of 15°C (59°F). Precipitation also varies considerably between the two months; July sees minimal rain at only 4 mm (0.1 in) over just one day, while May receives a much higher total of 37 mm (1.4 in) spread across seven days. Interestingly, both months share the same humidity level of 77%, but the overall feel is quite different due to the temperature fluctuations. For more detailed information on May weather, you can check Coulee Dam weather in May.

In comparing the weather between June and July, we see a notable increase in average temperature. July enjoys a higher average temperature of 24°C (75°F), while June has a cooler average of 20°C (68°F). Additionally, the maximum temperature in July reaches 41°C (107°F), slightly lower than June's peak of 43°C (110°F). However, July experiences significantly less precipitation, with only 4 mm (0.1 in) over just one day, compared to June's 13 mm (0.5 in) across four days. Humidity levels remain fairly consistent, with July at 77% and June a bit higher at 79%. For more insights on June's climate specifics, you can check out Coulee Dam weather in June.

In July, temperatures exhibit a broader range, with a minimum of 11°C (51°F), an average of 24°C (75°F), and a high reaching up to 41°C (107°F). The month is characterized by very little precipitation, measuring only 4 mm (0.1 in) over just one day, along with relatively high humidity at 77%. In contrast, August sees slightly cooler temperatures, with a minimum of 8°C (46°F), an average of 23°C (74°F), and a maximum of 39°C (102°F). Precipitation increases to 8 mm (0.3 in) across two days, while humidity drops to a more comfortable 62%. For more detailed insights into the weather during this month, you can check the Coulee Dam weather in August.

In comparing the weather between July and September, July typically features much warmer temperatures, with average highs reaching 41°C (107°F) and an overall average of 24°C (75°F). In contrast, September sees a significant drop in temperatures, with an average of 17°C (62°F) and highs maxing out at 35°C (95°F). July is also characterized by very low precipitation, only 4 mm (0.1 in) over about a day, whereas September experiences more rain, totaling 24 mm (1.0 in) across three days. Additionally, humidity levels are higher in July at 77%, compared to a more comfortable 60% in September. For those interested in more details, you can check Coulee Dam weather in September.

July and October showcase a striking contrast in weather conditions. In July, temperatures can reach a sweltering maximum of 41°C (107°F), with an average of 24°C (75°F) and minimal precipitation of just 4 mm over a single day. The humidity sits at a relatively high 77%, adding to the heat. In contrast, October experiences much cooler temperatures, with a maximum of 26°C (78°F) and a chilly minimum of -7°C (20°F). The average temperature drops to 8°C (48°F), and rainfall increases significantly to 42 mm over seven days, along with slightly higher humidity at 80%. For more details on October weather, you can check Coulee Dam weather in October.

July and November present starkly contrasting weather patterns. July boasts warm temperatures, ranging from a mild 11°C (51°F) to a scorching maximum of 41°C (107°F), with an average temperature of 24°C (75°F). The month is characterized by low precipitation, totaling only 4 mm (0.1 in) over just one day, alongside a comforting humidity level of 77%. In contrast, November experiences significantly cooler conditions, with temperatures dipping to a minimum of -9°C (16°F) and an average high of only 16°C (60°F). The month is wetter, accumulating 51 mm (2.0 in) of precipitation spread over 11 days, and the humidity rises to 87%. For more on the specific weather patterns in November, check out Coulee Dam weather in November.

July and December present starkly contrasting weather conditions. In July, temperatures range from a minimum of 11°C (51°F) to a scorching maximum of 41°C (107°F), with an average of 24°C (75°F), making it the peak of summer. Precipitation is minimal, with only 4 mm (0.1 in) over just one day, and humidity sits at a comfortable 77%. In contrast, December brings winter's chill, with temperatures dipping significantly, ranging from a frosty minimum of -19°C (-2°F) to a maximum of 16°C (60°F) and averaging -2°C (29°F). Precipitation increases to 57 mm (2.2 in) over 11 days, and humidity rises to 86%. This seasonal shift highlights the dramatic differences in weather conditions between the two months. For more details on December weather, you can visit Coulee Dam weather in December.

Compare Coulee Dam's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Coulee Dam

In July, Coulee Dam experiences a striking contrast to the cooler months, with temperatures peaking at an impressive 41°C (107°F), creating a vibrant and summery atmosphere. The average temperature rises significantly, inviting locals and visitors alike to enjoy the breathtaking scenery in warmer conditions. Although the month showcases only a minor precipitation level, the humidity remains notable, contributing to a distinctive feel in the air. This blend of heat and occasional light precipitation makes July a unique time in Coulee Dam, perfect for outdoor adventures. For a deeper understanding of weather trends, visit Coulee Dam Climate.