Last updated: February 24, 2025
In August, Duluth experiences a delightful summer ambiance characterized by a maximum temperature of 27°C (82°F) and an average of 19°C (67°F), creating ideal conditions for outdoor activities. The nights bring a refreshing coolness with minimum temperatures dipping to 13°C (55°F). However, August is also marked by a notable level of precipitation, with 109 mm (4.3 in) of rain falling over 11 days, contributing to the region's lush landscapes. Additionally, the humidity level hovers around 71%, adding a touch of tropical warmth to the summer air. Overall, Duluth in August offers a diverse weather experience, balancing warmth with moisture.
In August, Duluth experiences a delightful warmth that stands in stark contrast to the icy grip of its winter months. With a minimum temperature averaging 13°C (55°F) and a pleasant average of 19°C (67°F), it sets the stage for outdoor activities and summer fun. The maximum temperature can reach a comfortable 27°C (82°F), making this month ideal for enjoying the local parks and waterfront. Compared to the preceding months, August showcases a significant rise in temperatures, creating a vibrant atmosphere as residents and visitors revel in the sun-drenched days and cooler nights, a welcome precursor to the crisp autumn air that follows.
In August, Duluth experiences a notable uptick in rainfall, with an impressive 109 mm (4.3 in) of precipitation, making it one of the wettest months of the year. This increase in rainfall is accompanied by 11 days of precipitation, reflecting a trend of summer storms that often roll through the region. As the summer heat persists, August serves as a bridge to the wetter autumn months, where precipitation continues to rise, peaking in October with 153 mm (6.0 in). While July also sees significant rainfall at 95 mm (3.8 in), the pattern indicates that late summer is characterized by more frequent and heavier rainfall, marking a transition towards the rainy fall season.
In Duluth, United States, August brings a slight uptick in humidity, averaging 71%. This marks a subtle increase from the earlier summer months of June and July, which recorded 71% and 70% respectively. As the season transitions into fall, humidity levels gradually rise, peaking in the colder months: 93% in January and February. Notably, the trend suggests that while the summer months offer a welcome relief from the peak humidity of winter, the slight rise in August hints at the impending shift towards the wetter autumn months. Overall, Duluth experiences a dynamic humidity cycle, characterized by high moisture in the depths of winter and progressively lower levels as summer unfolds.
As summer winds down in Duluth, August maintains a very high UV Index of 8, echoing the intense sunlight experienced in the previous months of June and July. While the burn time is a brisk 15 minutes, it’s a slight reduction from July's peak conditions. This aligns with the seasonal trend of increasing UV exposure, peaking mid-summer, before tapering off in the fall. September follows with a high UV Index of 7, signifying a clear shift but still inviting outdoor activities. As you soak up the last rays of summer, remember to stay protected from the sun’s powerful rays. For more detailed information, visit Duluth UV Index.
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In Duluth, United States, August shines brightly with an impressive 308 hours of sunshine, showcasing a noteworthy peak following the sun-drenched months of June and July, which lead the year with 349 and 355 hours, respectively. As summer winds down, August reflects a gradual decline in sunshine hours, yet it still offers a robust amount, significantly higher than the earlier months like January, which only sees a mere 122 hours. This trend of increased sunlight from winter through summer underscores Duluth’s transformation into a vibrant, sunlit haven, making August a splendid time to enjoy the outdoors before the days shorten into fall. The transition from May's blooming 297 hours to August's warmth ultimately highlights the region’s seasonal shift, celebrating the sun's generous embrace during the peak of summer.
In Duluth, United States, the month of August offers a significant boost in sunny weather, boasting a 58% chance of sunshine. This aligns with a noticeable upward trend that begins in the earlier summer months. Starting from a modest 29% in January, the likelihood of sunny days gradually increases, reaching 63% in July. As summer peaks, August maintains a robust level of sunshine, just slightly below July’s summit. Following this sunny spell, the chances begin to taper off in September, making August a prime time for enjoying the sun before autumn sets in.
In Duluth, United States, the month of August offers a delightful decline in daylight, providing about 14 hours of sunlight. This marks a gradual transition from the high of 15 hours observed in the summer months of June and July. As the year progresses, daylight hours begin to recede from their peak, creating a dynamic shift in outdoor activities and natural scenery. Comparatively, August's daylight duration still retains a generous amount of sunlight, ensuring a lively atmosphere before the days shorten further into the fall months. The gradual decrease from summer's zenith alludes to the changing seasons while inviting residents and visitors alike to savor the bountiful warmth and vibrancy of the late summer days in Duluth.
In Duluth, United States, August ushers in a refreshing average wind speed of 4.3 m/s (10 mph), a pleasant shift that aligns closely with the slightly breezier conditions of September and October. This month stands out against the backdrop of a summer characterized by softer winds, which peaked at just 3.3 m/s (7 mph) in July. As the year progresses, the winds tend to increase, with November and December reaching their heights at 5.6 m/s (13 mph) and 5.5 m/s (12 mph), respectively. The transition from the low speeds of early summer to the brisk gusts of late fall illustrates a gentle yet notable change, inviting both locals and visitors to enjoy the vibrant outdoors as summer fades.
The weather in Duluth changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Duluth and find detailed weather information for every month.
August and January present a stark contrast in weather conditions. In August, temperatures range from a mild 13°C (55°F) to a warm 27°C (82°F), with an average of 19°C (67°F). The month sees a fair amount of rain, with 109 mm (4.3 in) of precipitation over 11 days and humidity levels at 71%. In sharp contrast, January experiences bitterly cold temperatures, with lows plunging to -31°C (-24°F) and an average of -10°C (15°F), only reaching a maximum of 5°C (41°F). Precipitation is minimal in January, totaling 25 mm (1.0 in) over just 6 days, while humidity remains high at 93%. For more detailed insights into the winter weather, check out Duluth weather in January.
When comparing the weather in August and February, stark contrasts emerge. August boasts mild temperatures with a minimum of 13°C (55°F) and a maximum of 27°C (82°F), averaging around 19°C (67°F). With 109 mm (4.3 in) of precipitation over 11 days and a humidity level of 71%, it offers a warm and somewhat humid climate. In contrast, February presents a drastically different scene, with frigid temperatures reaching as low as -32°C (-25°F) and averaging -10°C (14°F), peaking at just 8°C (47°F). The winter month experiences significantly less precipitation, totaling 33 mm (1.3 in) over 7 days, but maintains a high humidity of 93%. For a closer look at February's weather specifics, visit Duluth weather in February.
August and March present stark contrasts in weather conditions. August typically enjoys milder temperatures, with a minimum of 13°C (55°F) and a comfortable average of 19°C (67°F), peaking at a high of 27°C (82°F). Conversely, March experiences much colder weather, with temperatures plunging to a minimum of -22°C (-8°F) and an average of -3°C (28°F), reaching a maximum of just 10°C (51°F). Additionally, August sees considerable rainfall, accumulating 109 mm (4.3 in) over 11 days, while March has significantly less precipitation at 53 mm (2.1 in) spread across 6 days. The humidity levels also vary, with August averaging 71% compared to March’s 89%. For more details on the specific climate conditions, check out Duluth weather in March.
When comparing the weather in Duluth between August and April, notable differences emerge. August features a much warmer climate, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 27°C (82°F), while April sees cooler temperatures, with averages between -13°C (9°F) and 18°C (65°F). Precipitation is also more pronounced in August, accumulating to 109 mm (4.3 in) across 11 days, compared to April's 74 mm (2.9 in) over just 10 days. Additionally, relative humidity is slightly lower in August at 71%, compared to April's higher humidity level of 85%. For more details on weather trends in April, you can check Duluth weather in April.
When comparing the weather in August and May, a notable difference in temperature is evident. August boasts a minimum temperature of 13°C (55°F) and can reach a maximum of 27°C (82°F), with an average temperature of 19°C (67°F). In contrast, May begins with chillier temperatures, featuring a minimum of -1°C (30°F) and a maximum of 26°C (79°F), and an average of only 8°C (47°F). While both months experience comparable precipitation on 11 days—109 mm (4.3 in) in August and 94 mm (3.7 in) in May—humidity is slightly higher in May at 76%, compared to 71% in August. For a detailed look at May weather specifics, visit Duluth weather in May.
In comparing the weather between June and August, we can see a notable shift in temperatures and precipitation. June experiences cooler temperatures with a minimum of 5°C (42°F) and an average of 15°C (59°F), while August offers a warmer climate with a minimum of 13°C (55°F) and an average of 19°C (67°F). Both months showcase similar maximum temperatures, peaking at 28°C (82°F) in June as well as August. Precipitation is higher in August, with 109 mm (4.3 in) over 11 wet days compared to June's 76 mm (3.0 in) across 9 days. Interestingly, both months share a consistent humidity level of 71%. For more detailed insights into June's weather, you can explore Duluth weather in June.
In comparing the weather patterns of August and July, both months exhibit similar temperatures with average highs reaching 27°C (82°F) and average lows of 13°C (55°F) in August, compared to 11°C (53°F) in July. While the average temperature remains consistent at 19°C (66°F) to 19°C (67°F), August experiences slightly more precipitation, totaling 109 mm (4.3 in) over 11 days, as opposed to July's 95 mm (3.8 in) over 8 days. Humidity levels are also comparable, with August at 71% and July at 70%. For a more detailed look at July's specific weather conditions, visit Duluth weather in July.
August generally offers warmer temperatures compared to September, with minimums around 13°C (55°F) and an average of 19°C (67°F) versus September’s lower minimum of 4°C (39°F) and average of 16°C (62°F). Although both months experience significant precipitation, September sees a slight increase in rainfall with 119 mm (4.7 in) over 12 days, compared to August's 109 mm (4.3 in) over 11 days. Despite the cooler temperatures in September, humidity levels remain similar, with August at 71% and September rising slightly to 73%. For more detailed information, check out Duluth weather in September.
August and October present quite a contrast in weather conditions. In August, temperatures typically range from a mild 13°C (55°F) at night to a warm 27°C (82°F) during the day, with an average of 19°C (67°F). The month sees around 109 mm (4.3 in) of precipitation over about 11 days, and humidity levels hover around 71%. In contrast, October experiences a significant drop in temperatures, with nighttime lows plunging to -5°C (24°F) and daytime highs reaching up to 22°C (71°F), averaging just 9°C (48°F). Precipitation increases slightly to 153 mm (6.0 in) over 13 days, and humidity rises to 81%. For more detailed information, check out Duluth weather in October.
August and November present starkly contrasting weather conditions. In August, temperatures range from a mild 13°C (55°F) at night to a warm 27°C (82°F) during the day, with an average of 19°C (67°F). Precipitation is relatively high at 109 mm (4.3 in) over 11 days, and the humidity sits at 71%, contributing to a warm, muggy atmosphere. In contrast, November sees a dramatic drop in temperatures, with nightly lows plummeting to -12°C (11°F) and an average temperature of just 1°C (34°F). Although precipitation decreases to 52 mm (2.0 in) over 10 days, the humidity rises to a chilly 87%. For more insights into the weather during this time, you can check Duluth weather in November.
August and December present starkly contrasting weather conditions. In August, temperatures range from a mild 13°C (55°F) at night to a warm 27°C (82°F) during the day, with an average of 19°C (67°F). The month sees considerable rainfall, accumulating to 109 mm (4.3 in) over about 11 days, accompanied by a moderate humidity of 71%. In contrast, December experiences frigid temperatures, with lows plunging to -26°C (-15°F) and an average hovering around -5°C (23°F). The maximum temperature only reaches 9°C (48°F), while precipitation is less frequent, totaling 67 mm (2.6 in) over 10 days, yet the humidity is notably higher at 91%. For a deeper insight into December’s weather conditions, you can visit Duluth weather in December.
As summer reaches its peak in Duluth, August brings a delightful warmth characterized by higher temperatures and moderate humidity, making it distinct from the cooler months that precede it. With average highs around 27°C, the city basks in some of its hottest days, inviting outdoor activities and vibrant events. However, the month also sees an increase in precipitation, with approximately 11 days of rain, adding a refreshing balance to the summer heat. This unique blend of warmth and occasional showers creates a rich and lush environment, ideal for enjoying the city's natural beauty. For a deeper understanding of how August fits into the broader patterns of weather throughout the year, explore the insights at Duluth Climate.