July Weather in Cambridge, United States

Last updated: February 24, 2025

In July, Cambridge, United States, basks in the warmth of summer with a maximum temperature reaching 33°C (91°F) and an average of 22°C (73°F). While the days are generally sunny, expect a few rainy spells, as the month records an average precipitation of 116 mm (4.6 in) over 11 days. The humidity remains a comfortable 67%, enhancing the overall summer atmosphere. Whether you’re exploring the vibrant city or enjoying the lush outdoors, July offers a delightful mix of heat and refreshing showers, perfect for summer activities.

July Temperature in Cambridge

In July, Cambridge, Massachusetts, basks in the warmth of summer, with temperatures typically ranging from a minimum of 14°C (57°F) to a maximum of 33°C (91°F). The average temperature hovers around 22°C (73°F), creating a pleasant environment perfect for outdoor activities and gatherings. This month marks a noticeable transition from the cooler earlier months, where temperatures rarely exceeded 19°C (66°F). The rise in temperatures reflects the seasonal peak, offering long days filled with sun, ideal for enjoying parks, festivals, and various summer events. As such, July serves as a vibrant reminder of summer's full embrace in this charming New England locale.

July Weather in Cambridge: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Cambridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec313337475766727266564435
Data source: Temperature data for Cambridge generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Cambridge

In July, Cambridge experiences a notable rise in precipitation, accumulating 116 mm (4.6 inches) over approximately 11 days. This peak, following the comparatively drier June, reflects a seasonal shift as summer storms begin to frequent the region, contributing to the lush greenery that characterizes this time of year. While the rainfall is substantial, it falls slightly below the average precipitation, suggesting a balance between warmer temperatures and moisture. As the summer progresses, Cambridge typically sees a decrease in rainfall, with August ushering in a return to drier conditions. Overall, July serves as a pivotal month, bridging the lush vibrancy of mid-summer with the transitioning weather patterns that herald the approach of autumn.

July Precipitation Trends in Cambridge

The chart displays monthly precipitation patterns in Cambridge, 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.
JanFebMarAprMayJunJulAugSepOctNovDec77969614191871167284146101129
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

July Humidity in Cambridge

As July arrives in Cambridge, the humidity dips to 67%, marking the lowest point of the year. Following a gradual decline from the high levels of 86% in January, the summer months witness a shift towards more comfortable conditions, with June and July consistently hovering around 72% and 67% respectively. This trend hints at the transition from the damp chill of mid-winter to the warmer, drier spell of summer, allowing for more enjoyable outdoor activities. Interestingly, as August approaches, humidity remains fairly stable at 66%, maintaining this level of comfort while still hinting that the lush greenery of Cambridge is influenced by the steady moisture lingering in the air.

July Average Humidity in Cambridge

This chart illustrates the average monthly humidity levels in Cambridge, 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.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Cambridge

In July, Cambridge experiences a UV Index of 9, indicating a very high level of UV radiation, which means skin can burn in just 15 minutes of unprotected exposure. This peak period follows a gradual increase from a moderate index of 3 in January to a high of 10 in June, showcasing a consistent rise in UV intensity as summer approaches. Both July and August maintain this challenging UV level, urging residents to take necessary precautions. As the summer wanes into September, there is a slight dip to a high index of 7, allowing for a bit more outdoor safety without the constant worry of sunburn. To stay informed and protect your skin, check the latest updates on the Cambridge UV Index.

Maximum UV Index Levels in Cambridge for July

The chart shows the monthly maximum UV Index (UVI) for Cambridge 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.
JanFebMarAprMayJunJulAugSepOctNovDec3558910997642
Data source: Cambridge 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 Cambridge

July shines as the pinnacle of sunshine in Cambridge, United States, boasting an impressive 334 hours of sunlight. This peak follows a gradual ascent from the colder months, starting with a mere 152 hours in January and climbing steadily to 327 hours in both June and August. The warmth of July not only bathes the city in light but also signifies the height of summer. As the year progresses, the hours of sunshine typically decline, dipping to 221 hours in October, but the vibrant days of July serve as a sunny reminder of nature's bounty before the return of cooler seasons. This clear seasonal rhythm highlights the essential role of sunlight in Cambridge's summer charm.

Monthly Sunshine Duration in Cambridge: July Highlighted

The July sunshine duration represents the total number of hours Cambridge 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.
JanFebMarAprMayJunJulAugSepOctNovDec152h188h253h240h289h327h334h327h278h221h201h178h
Data source: Cambridge July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cambridge During July

In Cambridge, United States, the likelihood of sunny weather varies considerably throughout the year, with July showing a modest 33% chance of sunshine. This marks a notable dip compared to the sunnier months of March, which enjoys a robust 61%, and November, boasting a 55% chance. The trend suggests that while summer typically anticipates bright days, July's sunny probabilities fall short of expectations, even trailing behind the preceding months of June and May, which hover around 40% and 38%, respectively. As the year progresses, it appears that sunnier spells may emerge predominantly in spring and fall, leaving summer somewhat cloudier in this charming New England locale.

Percentage of Sunny Days in July in Cambridge

The chart illustrates the percentage of sunny days in Cambridge 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 Cambridge experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%34%61%41%38%40%33%30%44%39%55%33%
Data source: Cambridge July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cambridge in July

In July, Cambridge, United States experiences a peak in daylight duration, boasting 14 hours of sunlight. This month follows a gradual buildup from the shorter days of winter, beginning with 9 hours in January, and builds steadily through the spring. By the time June arrives, residents enjoy 15 hours of illuminating light, making it the sunniest month. However, as summer wanes into August, daylight begins to taper off again to 13 hours, hinting at the transitions the seasons bring. This cyclical pattern of declining daylight duration continues, ultimately leading back to the winter months, where days are notably shorter and clock in again at 9 hours by November. The ebb and flow of daylight through the year paints a vibrant picture of seasonal change in Cambridge.

Average Daylight Hours in Cambridge for July

The chart illustrates the variation in daylight duration in Cambridge throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 26m10h 33m11h 57m13h 24m14h 38m15h 14m14h 54m13h 49m12h 26m10h 59m9h 44m9h 5m
Data source: Cambridge daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Cambridge

In July, Cambridge experiences its calmest winds of the year, with an average speed of just 3.3 m/s (7 mph). This marks a noticeable decline from the bustling breezes of earlier months, particularly March, when winds peaked at 4.9 m/s (11 mph). As summer sets in, the gentle whispers of the July wind create a serene atmosphere, perfect for leisurely afternoons outdoors. Following July, the wind speed remains subdued into August, reflecting a steady trend of lighter winds during the peak summer months. This tranquil period contrasts with the brisker autumn winds that await in September, signaling a shift back to more dynamic weather patterns as the year progresses.

Average July Wind Speed in Cambridge

The chart displays monthly wind speed patterns in Cambridge, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.54.44.94.24.03.83.3 m/s3.23.74.24.24.2
Data source: Cambridge July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Cambridge Compares to Other Months

The weather in Cambridge 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 Cambridge and find detailed weather information for every month.

In comparing the weather of July and January, a stark contrast emerges. July boasts a relatively warm climate, with average temperatures around 22°C (73°F) and highs reaching up to 33°C (91°F), along with a moderate level of precipitation at 116 mm (4.6 in) over 11 days. In contrast, January is marked by frigid conditions, featuring an average temperature of 0°C (32°F) and minimums plummeting to -20°C (-3°F). Although January experiences less rainfall, at 77 mm (3.0 in) over 9 days, the humidity is notably higher at 86%, resulting in a different kind of chill. For a more detailed look at the specifics, you can check out Cambridge weather in January.

July and February present stark contrasts in weather. July boasts a warm climate with average temperatures hovering around 22°C (73°F) and peaks reaching up to 33°C (91°F), accompanied by moderate humidity levels of 67%. In contrast, February is characterized by its cold temperatures, with averages around 1°C (33°F) and lows plummeting to -16°C (4°F), making it a much chillier month. Despite having a similar number of rainy days—11—February receives slightly less precipitation at 96 mm (3.8 in) compared to July’s 116 mm (4.6 in). Additionally, February experiences higher humidity levels at 84%, contributing to a notably different feel from the warm summer month. For more specific details on February's climate, see Cambridge weather in February.

In comparing the weather of July and March, one can see a stark contrast. July features a warm average temperature of 22°C (73°F), with highs reaching up to 33°C (91°F), while March's average temperature is significantly cooler at just 3°C (38°F), peaking at a mild 19°C (66°F). Additionally, July experiences more precipitation at 116 mm (4.6 in) over 11 days, compared to March, which has 96 mm (3.8 in) of rainfall over 10 days. The humidity levels also differ, with July at 67% and March higher at 82%, leading to a distinctly different feel in the air. For more details on March weather, you can check out Cambridge weather in March.

When comparing the weather in July and April, notable differences emerge. July boasts a milder minimum temperature of 14°C (57°F) and an average of 22°C (73°F), with a maximum reaching a warm 33°C (91°F). In contrast, April experiences a wider range in temperatures, with a minimum dipping to -2°C (28°F), an average of 8°C (47°F), and a comfortable maximum of 26°C (79°F). While April sees slightly more precipitation at 141 mm (5.6 in) over 13 days, July has a significant amount of rainfall as well, measuring 116 mm (4.6 in) across 11 days. Humidity levels are also higher in April at 80%, compared to July's 67%. For more details on April weather conditions, visit Cambridge weather in April.

July experiences significantly warmer temperatures compared to May, with average daily highs reaching up to 33°C (91°F) versus May's maximum of 30°C (87°F). The minimum temperatures in July are also notably higher, with a low of 14°C (57°F), while May starts at just 3°C (37°F). Although both months see approximately the same number of rainy days, July has a higher total precipitation of 116 mm (4.6 in) compared to May's 91 mm (3.6 in). Additionally, humidity levels are slightly lower in July at 67%, compared to May's 72%. For more details, you can check out Cambridge weather in May.

In comparing the weather patterns of June and July, it is evident that July experiences warmer temperatures, with an average of 22°C (73°F), compared to June's average of 19°C (66°F). Both months see similar maximum temperatures, peaking at 32°C (91°F). However, July is marked by higher minimum temperatures, averaging 14°C (57°F) compared to June's cooler 8°C (46°F). Precipitation also increases in July, totaling 116 mm (4.6 in) over 11 days, compared to June's 87 mm (3.4 in) over 10 days. Interestingly, while July has a slightly lower humidity at 67%, it remains a humid month overall. For more details on the June weather, you can check Cambridge weather in June.

In comparing the weather of July and August, both months experience similar average temperatures, with July seeing a minimum of 14°C (57°F) and a maximum of 33°C (91°F), while August features slightly cooler temperatures with a minimum of 13°C (56°F) and a maximum of 32°C (91°F). Precipitation levels are notably lower in August, with only 72 mm (2.8 in) over 10 days, compared to July's 116 mm (4.6 in) over 11 days. Humidity remains relatively stable, with July averaging 67% and August slightly lower at 66%. For a more detailed look at August's weather, you can visit Cambridge weather in August.

In comparing the weather between July and September, July tends to be warmer with average temperatures around 22°C (73°F) and highs reaching up to 33°C (91°F). In contrast, September sees a notable drop in temperatures, with an average of 19°C (66°F) and minimums dipping down to 7°C (45°F). While July experiences more rainfall, totaling 116 mm (4.6 in) over 11 days, September is drier with 84 mm (3.3 in) over 8 days. Humidity levels are slightly higher in September at 71%, compared to 67% in July. For more detailed information, you can check Cambridge weather in September.

July and October present a striking contrast in weather. In July, temperatures range from a mild 14°C (57°F) at night to a warm 33°C (91°F) at their peak, with an average of 22°C (73°F). However, it also sees considerable rainfall, with 116 mm (4.6 in) spread over 11 days and humidity averaging 67%. In contrast, October brings cooler temperatures, with nighttime lows dropping to 0°C (33°F) and daytime highs reaching up to 27°C (81°F), averaging 13°C (57°F). While October experiences a bit more precipitation at 146 mm (5.8 in) over the same number of days, the humidity is slightly higher at 78%. For a detailed look at the weather conditions during this month, you can check Cambridge weather in October.

July and November exhibit stark contrasts in weather patterns. July typically experiences warmer temperatures, ranging from a minimum of 14°C (57°F) to a maximum of 33°C (91°F), with an average of 22°C (73°F). In contrast, November sees much cooler temperatures, with daytime highs peaking at 22°C (71°F) but dropping to a minimum of -11°C (13°F) and averaging only 6°C (44°F). Precipitation levels are somewhat similar, with July receiving 116 mm (4.6 in) over 11 days and November slightly less at 101 mm (4.0 in) over 10 days. Additionally, humidity is higher in November at 84%, compared to July's 67%. For more detailed insights into November weather in Cambridge, check out Cambridge weather in November.

When comparing the weather in July and December, a stark contrast emerges. In July, temperatures range from a mild 14°C (57°F) to a warm 33°C (91°F), with an average of 22°C (73°F), making it a popular month for outdoor activities. The month experiences about 116 mm (4.6 in) of precipitation over 11 days, accompanied by a relatively moderate humidity level of 67%. In contrast, December sees a drastic drop in temperatures, with lows reaching -18°C (0°F) and an average of just 2°C (35°F), peaking at a mere 16°C (62°F). This winter month brings slightly more precipitation at 129 mm (5.1 in), though over only 10 days, and a higher humidity of 81%, which can contribute to a harsher chill. For those curious about specific conditions in the winter, more details can be found at Cambridge weather in December.

Compare Cambridge's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Cambridge

In July, Cambridge experiences a notable shift in weather, characterized by warmer temperatures and increased humidity compared to other months. With highs reaching into the low 30s°C, the summer warmth invites outdoor activities, though the average remains comfortably mild. Precipitation also plays its part, as July often sees a few rainy days, contributing to a lively and lush environment. This month's unique blend of heat and humidity makes it distinct in the annual climate cycle, encouraging both locals and visitors to embrace the vibrant summer atmosphere. For more insights on the year-round weather patterns, check out Cambridge Climate.