Last updated: February 24, 2025
In Custer, United States, August brings a captivating blend of warm temperatures and dynamic weather patterns. Daytime highs can soar to a sizzling 34°C (94°F), while the average temperature settles around a comfortable 19°C (66°F). Evenings cool down to a refreshing low of 4°C (40°F), providing a pleasant respite from the day's heat. This month also witnesses 76 mm (3.0 in) of rainfall, occurring over 13 days, making it a crucial time for local flora. Coupled with an average humidity of 85%, the atmosphere is often rich and vibrant, creating a unique summer experience for residents and visitors alike.
In August, Custer, United States, experiences a pleasant summer warmth characterized by mild minimums around 4°C (40°F) and average temperatures of 19°C (66°F). The maximum temperatures can soar to 34°C (94°F), reflecting the peak of the warmer season and making it an appealing time for outdoor activities. Compared to the frigid depths of winter, where temperatures can plummet as low as -33°C (-27°F) in February, August offers a welcome contrast, showcasing a significant rise in warmth. This month not only marks a transition into cooler autumn temperatures but also remains relatively warm, setting the stage for late summer adventures in the beautiful Black Hills region.
In August, Custer experiences a notable shift in precipitation patterns, receiving 76 mm (3.0 in) of rain over 13 days. This month marks a decline from the higher rainfall seen in both June and July, which recorded 88 mm and 114 mm respectively. Despite the decrease, August still contributes significantly to the summer's overall moisture, hinting at a gradual transition towards the drier autumn months ahead. The precipitation days also suggest a more moderate rainfall frequency compared to the earlier summer peak, indicating that while August brings noticeable rain, it's part of a broader trend of fluctuating precipitation typical for this time of year in Custer.
In Custer, United States, August marks the peak of humidity, mirroring July's 85% levels. The summer months see an unmistakable rise in moisture, with June hitting 84% and July slightly increasing to 85%. This trend creates a tropical feel as the warmer months unfold, with humidity gradually climbing from a more comfortable 64% in March. Following August, humidity starts to decline, reflecting a shift back to more moderate levels in September at 76%. Overall, it’s clear that summer brings a persistent muggy warmth to Custer, making August a notable high point in the annual humidity cycle.
Throughout the summer months in Custer, the UV Index reaches its peak, particularly in June and July, where it soars to a striking 11, indicating an extreme exposure risk with a swift burn time of just 10 minutes. As August rolls in, the Index slightly drops to 10, maintaining a very high exposure category, but still necessitating caution, with a burn time of 15 minutes. Interestingly, the trend reveals a gradual decrease in UV levels as we transition into fall, with September displaying an 8 and October a 6, moving back to a more moderate risk in the later months of the year. This pattern highlights the importance of sun safety during the summer and early autumn. For more detailed insights, check out the Custer UV Index.
UV Risk Categories
August in Custer, United States, basks in a generous 355 hours of sunshine, marking a delightful peak in the summer months. This radiant month follows a powerful streak of sunlight, with both June and July boasting impressive tallies of 374 and 384 hours, respectively. As summer wanes, sunshine hours taper off into September’s 290 hours, illustrating a distinct seasonal trend. Notably, the year begins with significantly less sun, highlighting how Custer transforms into a sun-soaked haven during the warmer months, inviting both residents and visitors to embrace the vibrant outdoor lifestyle that this gorgeous corner of the world has to offer.
In Custer, August stands out with a promising 72% chance of sunny weather, making it the sunniest month of the year. This trend reflects a significant increase from the preceding months, with the likelihood climbing from 62% in July to August's peak. As summer unfolds, the chances of enjoying bright, clear skies rise notably, contrasting with the earlier months where sunlight is more sporadic. Following August, the chances remain favorable into September at 66%, suggesting that the tail end of summer offers delightful weather, ideal for outdoor activities and exploration. Overall, August not only brings warmth but also a compelling guarantee of sunshine, inviting residents and visitors alike to soak up the vibrant summer days.
In Custer, United States, August marks a transition as daylight begins to wane after the peak summer months. With approximately 13 hours of daylight, August maintains a generous length of day, although it’s a notable decrease from the 15 hours enjoyed in June and July. This gradual reduction hints at the approach of autumn, as the days slowly shorten leading into September, which offers just 12 hours of daylight. This pattern of diminishing daylight serves as a reminder of the seasonal shifts, bridging the vibrant energy of summer with the more subdued tones of fall.
In Custer, United States, the average wind speed in August reaches a gentle 2.8 m/s (6 mph), continuing a consistent trend seen since June. This month marks a period of relative calmness, as wind speeds have plateaued at this level across July, August, and September. The arrival of fall brings a slight uptick, with speeds increasing to 3.4 m/s (8 mph) in October. In contrast to the earlier months of the year, which exhibit more variation—January starts off brisk at 3.7 m/s (8 mph), while winter months like December peak at 3.9 m/s (9 mph)—August stands out for its serene and steady breezes. As summer wanes, the winds in Custer provide a tranquil backdrop, allowing residents and visitors to revel in the late-season warmth.
The weather in Custer 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 Custer and find detailed weather information for every month.
August and January present stark contrasts in weather. In August, temperatures range from a brisk 4°C (40°F) at night to a high of 34°C (94°F) during the day, coupled with significant humidity at 85% and 76 mm of precipitation spread over 13 days. In contrast, January is marked by much colder conditions, with temperatures dipping as low as -28°C (-18°F) and averaging around -3°C (26°F). The month typically experiences only 15 mm of precipitation over 5 days and lower humidity at 73%. For more detailed insights, you can check Custer weather in January.
August and February present starkly contrasting weather patterns. In August, temperatures range from a chilly 4°C (40°F) at night to a warm high of 34°C (94°F) during the day, with an average of 19°C (66°F). This month experiences significant humidity at 85%, along with 76 mm (3.0 in) of precipitation over approximately 13 days. In contrast, February is characterized by frigid temperatures, with a minimum of -33°C (-27°F) and a maximum of 17°C (63°F), averaging -6°C (21°F). The month sees much less precipitation at 32 mm (1.3 in) over just 7 days and a lower humidity level of 78%. For more details on February weather, you can check Custer weather in February.
August and March present contrasting weather conditions. August boasts mild to hot temperatures, ranging from a minimum of 4°C (40°F) to a maximum of 34°C (94°F), with an average of 19°C (66°F). The month is characterized by high humidity at 85% and significant precipitation, with 76 mm (3.0 in) falling over 13 days. In contrast, March experiences much colder temperatures, with lows dropping to -29°C (-21°F) and a maximum of 22°C (72°F), averaging only 1°C (34°F). This month has less precipitation at 48 mm (1.9 in) over 8 days, accompanied by lower humidity levels of 64%. For a closer look at March weather, visit Custer weather in March.
August and April present stark contrasts in weather conditions. In August, temperatures range from a cool 4°C (40°F) at night to a sizzling peak of 34°C (94°F) during the day, with an average temperature of 19°C (66°F). This month experiences a fair amount of precipitation, totaling 76 mm (3.0 in) over 13 days, accompanied by high humidity at 85%. In contrast, April showcases a frosty start, with temperatures dipping as low as -23°C (-10°F), but can reach a pleasant high of 25°C (77°F). Despite slightly higher total precipitation at 84 mm (3.3 in) over 12 days, April's humidity is lower at 66%. For a deeper look into April weather specifically, visit Custer weather in April.
When comparing the weather in August and May, notable differences emerge. August experiences a warmer climate, with average temperatures around 19°C (66°F) and highs reaching up to 34°C (94°F), contrasted with May's cooler conditions, where averages stand at 10°C (50°F) with maximums of 29°C (85°F). Rainfall is also a significant factor; August receives about 76 mm (3.0 in) of precipitation over 13 days, while May is wetter, with 112 mm (4.4 in) of rain across 18 days. Additionally, humidity levels are higher in August at 85%, compared to May's 74%. For more detailed insights, visit Custer weather in May.
In comparing the weather of August and June, both months feature a similar range of temperatures, with maximums reaching up to 34°C (94°F) on the hottest days. However, August tends to have slightly warmer average temperatures, with a minimum of 4°C (40°F) and an average of 19°C (66°F), compared to June's minimum of 3°C (38°F) and an average of 18°C (64°F). Precipitation levels are slightly lower in August at 76 mm (3.0 in) over 13 days, while June experiences 88 mm (3.4 in) over 14 days, making June a bit wetter overall. The humidity remains relatively high in both months, with August at 85% and June at 84%. For a detailed look at Custer's June weather, you can refer to Custer weather in June.
When comparing the weather of August to July, we see some interesting variations. August tends to be slightly cooler, with a minimum temperature of 4°C (40°F) compared to July's 7°C (45°F). The average temperature remains similar, with August at 19°C (66°F) and July at 20°C (69°F). July also has a slightly higher maximum temperature of 35°C (96°F), while August peaks at 34°C (94°F). Precipitation is more abundant in July, totaling 114 mm (4.5 in) over 16 days, compared to August's 76 mm (3.0 in) over 13 days. Both months share the same humidity level of 85%. For a detailed breakdown of July's climatic conditions, check out Custer weather in July.
In August, the weather is characterized by warm temperatures, with a minimum of 4°C (40°F) and an average of 19°C (66°F), soaring up to a maximum of 34°C (94°F). This month experiences significant precipitation, totaling 76 mm (3.0 inches) over approximately 13 days, accompanied by high humidity levels at 85%. In contrast, September brings a noticeable drop in temperature, with a minimum of -9°C (16°F) and an average of 15°C (59°F), but can peak at a high of 36°C (97°F). The month is drier, with only 49 mm (1.9 inches) of rain falling across 8 days and humidity levels dipping to 76%. For more detailed information, you can check Custer weather in September.
August and October present a stark contrast in weather conditions. In August, temperatures range from a mild 19°C (66°F) on average, peaking at a scorching 34°C (94°F), accompanied by high humidity at 85% and a decent amount of rainfall totaling 76 mm (3.0 inches) over 13 days. In comparison, October sees significantly colder temperatures, with average highs of 6°C (43°F) and lows dropping to a chilling -21°C (-5°F). While October experiences less precipitation at 53 mm (2.1 inches) over just 8 days, the decrease in humidity to 71% creates a crisper, drier feel. For more detailed information, check out Custer weather in October.
August and November present stark contrasts in weather patterns. August typically enjoys warmer temperatures, with a minimum of 4°C (40°F) and an average of 19°C (66°F), peaking at a maximum of 34°C (94°F). It's also quite humid, with 85% humidity and significant precipitation over 13 days, totaling 76 mm (3.0 in). In contrast, November brings a chill, with temperatures dipping to a minimum of -21°C (-5°F) and an average of just 2°C (36°F), while the maximum reaches only 24°C (75°F). November is much drier, with only 23 mm (0.9 in) of precipitation over 6 days and lower humidity at 73%. For a more detailed overview of November weather, check Custer weather in November.
The weather in August and December presents a stark contrast, reflecting the seasonal shifts. In August, temperatures range from a low of 4°C (40°F) to a high of 34°C (94°F), with an average of 19°C (66°F) and relatively high humidity at 85%. The month also sees considerable precipitation, totaling 76 mm (3.0 in) over 13 days. In contrast, December experiences a much colder climate, with temperatures ranging from a frigid -25°C (-13°F) to a milder 19°C (67°F) and an average of -2°C (29°F). There is significantly less precipitation, totaling only 27 mm (1.1 in) over 6 days, and lower humidity at 75%. For more detailed information, check out Custer weather in December.
August in Custer brings a notable shift in weather patterns, marked by warmer temperatures that peak at a maximum of 34°C (94°F). Unlike the cooler months, this summer month enjoys a pleasant average of 19°C (66°F), while nighttime temperatures can dip to a refreshing 4°C (40°F). Rainfall is not uncommon, with approximately 76 mm (3.0 in) spread over 13 days, adding a humid touch to the otherwise dry summer air at 85% humidity. This unique combination of heat and occasional rain distinguishes August from the cooler, drier months of the year. For more insights into Custer's climate, visit Custer Climate.