August Weather in Signal Mountain, United States

Last updated: February 24, 2025

August in Signal Mountain, United States, brings a vibrant mix of summer warmth and refreshing rains. With maximum temperatures reaching 35°C (96°F) and an average of 26°C (78°F), the days are pleasantly warm, while evenings cool down to a minimum of 15°C (60°F). Humidity levels hover around 67%, adding to the overall of summer feel. This month sees 121 mm (4.8 in) of precipitation spread over 14 days, providing much-needed moisture to the lush landscapes and a respite from the heat. Whether you enjoy hiking in the cool mornings or relaxing indoors during occasional afternoon showers, August offers a delightful outdoor experience in Signal Mountain.

August Temperature in Signal Mountain

In August, Signal Mountain, United States, basks in the warmth of late summer, showcasing temperatures that range from a minimum of 15°C (60°F) to a maximum of 35°C (96°F). The season peaks with an average temperature of 26°C (78°F), creating a vibrant atmosphere perfect for outdoor activities and stunning views. This month marks a notable trend, as temperatures rise steadily from the cooler winter months, with August sitting just below the hottest point of July. The comfortable nights at 15°C invite stargazers and nature lovers alike to revel in the beauty of the surrounding landscapes, making late summer a delightful time to experience all that Signal Mountain has to offer.

August Weather in Signal Mountain: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Signal Mountain, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434854607076797874645046
Data source: Temperature data for Signal Mountain 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.

August Precipitation in Signal Mountain

In August, Signal Mountain experiences a notable increase in precipitation, with totals reaching 121 mm (4.8 in) over 14 days of rainfall. This figure suggests a pattern of relatively consistent wetness, as it aligns closely with the previous month of July, which recorded 106 mm (4.2 in). The summer months, particularly from June to August, showcase the region's peak rainfall, hinting at a vibrant, lush landscape during this time. As the year progresses towards fall, precipitation levels begin to taper off, with September expecting a drop to 106 mm (4.2 in). Thus, August stands out as a transitional month that maintains the mid-summer moisture, bridging the gap into the drier autumn season.

August Precipitation Trends in Signal Mountain

The chart displays monthly precipitation patterns in Signal Mountain, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec991711691569612010612110613372139
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Signal Mountain

In August, Signal Mountain experiences a notable drop in humidity, reaching 67%, a significant decrease from the preceding summer months. This change marks a shift from the peak, with July maintaining a comfortable 78%. Throughout the year, humidity levels are highest during the winter months, averaging around 87% in January and February, which can create a cozy yet damp atmosphere. As the seasons transition, spring and early summer exhibit more moderate humidity, but the late summer brings a refreshing relief before the humidity begins to rise again in autumn. This pattern—high in winter, moderate in spring and early summer, and decreasing in late summer—underscores the region's climatic rhythm, allowing residents to enjoy the crispness of late summer and early fall.

August Average Humidity in Signal Mountain

This chart illustrates the average monthly humidity levels in Signal Mountain, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Signal Mountain

In August, Signal Mountain experiences a very high UV Index of 10, with a burn time of just 15 minutes for unprotected skin. As summer reaches its peak, the UV Index starts to show a slight decline from the extreme levels seen in June and July, where it consistently peaked at 11. This trend illustrates the intensity of UV radiation prevalent during the warmer months, emphasizing the need for protective measures even as autumn approaches. Overall, August serves as a reminder to remain vigilant about sun safety, as the risky exposure levels persist, though slightly reduced. For more detailed information, visit Signal Mountain UV Index.

Maximum UV Index Levels in Signal Mountain for August

The chart shows the monthly maximum UV Index (UVI) for Signal Mountain in August, 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.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Signal Mountain August 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.

August Sunshine in Signal Mountain

August in Signal Mountain, United States, boasts an impressive 305 hours of sunshine, continuing the summer's radiant trend. This month stands as a highlight in a season characterized by increasing daylight, peaking during July with 317 hours of sunshine. As summer transitions into fall, sunlight begins to wane, with September seeing a decline to 276 hours. Notably, August retains a robust amount of sunshine, just shy of its July apex, indicating that summer's warmth lingers delightfully before the onset of cooler months. The gradual decrease in daylight from April’s 265 hours to October's 253 hours foreshadows the cozy fall season, yet August reminds us of the last golden rays of summer's embrace.

Monthly Sunshine Duration in Signal Mountain: August Highlighted

The August sunshine duration represents the total number of hours Signal Mountain experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec146h153h217h265h302h300h317h305h276h253h226h168h
Data source: Signal Mountain August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Signal Mountain During August

In Signal Mountain, the likelihood of sunny weather in August hovers around 34%, which is slightly lower than the more vibrant months of April and September, boasting 52% and 49% chances of sunshine, respectively. This dip reflects a broader trend, where the summer months, despite their warmth, struggle to consistently deliver bright skies, with June, July, and August all presenting less than favorable conditions. This pattern suggests that while August may still offer some sunny days, residents and visitors should be prepared for a mix of weather as the season transitions toward fall, hinting at the sunshine abundance that awaits later in the year, particularly in November with a promising 57% chance.

Percentage of Sunny Days in August in Signal Mountain

The chart illustrates the percentage of sunny days in Signal Mountain throughout the year, with August 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 Signal Mountain experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%38%36%52%31%37%39%35%49%36%57%37%
Data source: Signal Mountain August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Signal Mountain in August

In Signal Mountain, United States, August marks a gentle transition in daylight duration, offering about 13 hours of sunlight. This month follows the peak of summer where daylight reached its zenith in June and July with consistent 14-hour stretches. As the days begin to shorten, August still provides ample light to enjoy outdoor activities, but hints at the impending autumn with each passing day. The gradual decline in daylight hours throughout the months reminds us of the cyclical nature of the seasons, where we can savor the warmth of summer even as we prepare for the cozy embrace of fall.

Average Daylight Hours in Signal Mountain for August

The chart illustrates the variation in daylight duration in Signal Mountain throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 5m10h 55m11h 59m13h 5m14h14h 27m14h 12m13h 23m12h 20m11h 15m10h 18m9h 49m
Data source: Signal Mountain daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Signal Mountain

In Signal Mountain, August marks a notable dip in wind speeds, averaging 1.6 m/s (4 mph), the lowest of the year. This decline follows a gradual decrease from May, when the winds began their gentle retreat. Throughout the summer months, a trend of diminishing breezes becomes evident, peaking in June with 2.1 m/s (5 mph) before easing into the quieter August air. As summer wanes, September sees a slight uptick, returning to 1.8 m/s (4 mph), suggesting that while August captures the stillness of late summer, the arrival of fall may breathe a little more life back into the winds. Overall, the progression illustrates how Signal Mountain's summer transitions gracefully into autumn, characterized by a serene and tranquil atmosphere.

Average August Wind Speed in Signal Mountain

The chart displays monthly wind speed patterns in Signal Mountain, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.72.82.52.42.11.81.6 m/s1.82.12.32.7
Data source: Signal Mountain August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Signal Mountain Compares to Other Months

The weather in Signal Mountain 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 Signal Mountain and find detailed weather information for every month.

August and January in Signal Mountain present a striking contrast in weather. In August, temperatures range from a comfortable 15°C (60°F) at night to a peak of 35°C (96°F) during the day, with an average of 26°C (78°F). Humidity hovers around 67%, and the region sees about 121 mm (4.8 in) of precipitation over approximately 14 days. In contrast, January offers a much colder experience, with temperatures dipping to a minimum of -13°C (9°F), peaking at 24°C (75°F) during the day, and averaging around 6°C (43°F). Precipitation is slightly lower at 99 mm (3.9 in) over about 10 days, but the humidity is higher at 87%. For more details, check out Signal Mountain weather in January.

August and February present stark contrasts in weather patterns. August typically enjoys warmer temperatures, with averages around 26°C (78°F) and highs reaching 35°C (96°F), accompanied by moderate humidity at 67%. However, it also sees significant precipitation, with about 121 mm (4.8 in) falling over 14 days. In contrast, February experiences much cooler conditions, with average temperatures around 9°C (48°F) and minimums dropping to -7°C (20°F). Despite the chill, February has higher precipitation at 171 mm (6.7 in), also spread over 14 days, while the humidity is notably higher at 87%. For a more detailed look at February weather, you can visit Signal Mountain weather in February.

When comparing the weather in August and March, notable differences emerge. August typically boasts warmer temperatures, ranging from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), with an average of 26°C (78°F). In contrast, March experiences much cooler conditions, with temperatures varying from a low of -6°C (22°F) to a high of 29°C (84°F) and an average of 12°C (54°F). While August receives about 121 mm (4.8 in) of precipitation over 14 days, March is slightly wetter, with 169 mm (6.7 in) of rainfall across 13 days. Additionally, humidity levels are higher in March at 85%, compared to August's 67%. For more detailed insights, you can refer to Signal Mountain weather in March.

When comparing the weather in August and April, notable differences emerge. August typically showcases warmer temperatures, with a minimum of 15°C (60°F) and an average of 26°C (78°F), while maximums can reach as high as 35°C (96°F). In contrast, April starts quite cooler, with minimum temperatures around -1°C (30°F) and a comfortable average of 16°C (60°F), peaking at 30°C (87°F). Precipitation in April is slightly higher at 156 mm (6.2 in) over 10 days, compared to August’s 121 mm (4.8 in) spread across 14 days. Additionally, April's humidity is higher at 82%, while August sees a more moderate 67%. For more detailed insights, you can check Signal Mountain weather in April.

When comparing the weather in August and May, it's clear that August tends to be warmer, with an average temperature of 26°C (78°F) compared to May's cooler average of 21°C (70°F). August experiences a broader temperature range, featuring minimums of 15°C (60°F) and maximums reaching up to 35°C (96°F), while May has minimums down to 4°C (39°F) and maximums peaking at 34°C (93°F). Precipitation is slightly higher in August, with 121 mm (4.8 in) over 14 days, compared to the 96 mm (3.8 in) over 10 days in May. Additionally, humidity levels are more comfortable in August at 67%, whereas May sees a higher humidity at 83%, contributing to a different feel in the air. For more detailed information about May’s conditions, you can check out Signal Mountain weather in May.

When comparing the weather in August and June, August typically experiences warmer temperatures with an average high of 26°C (78°F) and maximums reaching as high as 35°C (96°F), while June has a slightly cooler average of 24°C (76°F) with maximums peaking at 34°C (94°F). Although both months see similar precipitation levels—121 mm (4.8 in) in August and 120 mm (4.7 in) in June—August tends to have slightly higher humidity at 67%, compared to June's 82%, which can make the heat feel more intense. For a closer look at June weather, you can visit Signal Mountain weather in June.

In comparing the weather of July and August, both months exhibit similar average temperatures, with July maintaining a slightly higher minimum and maximum temperature at 16°C (61°F) and 37°C (98°F) compared to August's 15°C (60°F) and 35°C (96°F). However, August experiences higher precipitation, totaling 121 mm (4.8 in) over 14 days, compared to July's 106 mm (4.2 in) for the same duration. Notably, humidity levels are generally higher in July at 78%, while August sees a slight decrease to 67%. This suggests that while both months are warm, August tends to be somewhat wetter and less humid than July. For more detailed insights, you can explore Signal Mountain weather in July.

August generally experiences warmer temperatures compared to September, with average highs reaching 35°C (96°F) and lows around 15°C (60°F), making it a hotter month overall. In contrast, September offers slightly cooler conditions, with an average temperature of 24°C (75°F) and minimum temperatures dropping to 9°C (48°F). Both months see significant rainfall, but August has more precipitation at 121 mm (4.8 in) over 14 days, whereas September experiences 106 mm (4.2 in) across just 8 days. Humidity levels are also slightly higher in August at 67%, compared to 64% in September. For a more detailed look at the weather during this time, check Signal Mountain weather in September.

In August, the weather is typically warm with average temperatures around 26°C (78°F) and peaks reaching as high as 35°C (96°F), while the minimum temperature hovers at a comfortable 15°C (60°F). Humidity levels sit at 67%, and the month sees about 121 mm (4.8 in) of precipitation over 14 days. In contrast, October brings much cooler temperatures, with an average of 18°C (65°F), and minimums dropping to -2°C (29°F). Despite the chill, October experiences slightly more precipitation at 133 mm (5.2 in) across 10 days, with humidity increasing to 74%. For those interested in understanding the specifics of October's climate, you can check out the details here: Signal Mountain weather in October.

August and November exhibit stark contrasts in weather conditions. August boasts a warm climate, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (96°F) and an average of 26°C (78°F). It also sees considerable precipitation, averaging 121 mm (4.8 in) over about 14 days, paired with a humidity level of 67%. In contrast, November presents a much cooler landscape, with temperatures dipping significantly—minimums reaching -6°C (21°F) while averaging just 10°C (50°F) and peaking at 26°C (79°F). Rainfall is less frequent in November, totaling 72 mm (2.8 in) over about 8 days, yet the humidity is higher at 87%. For a closer look at what to expect, check out Signal Mountain weather in November.

August and December present stark contrasts in weather patterns. In August, temperatures range from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), with an average of 26°C (78°F). The month sees significant rainfall, with 121 mm (4.8 in) spread over 14 days, alongside a moderate humidity level of 67%. In contrast, December experiences much colder temperatures, with a range from a minimum of -8°C (18°F) to a maximum of 23°C (73°F), and an average of 8°C (46°F). Precipitation increases slightly to 139 mm (5.5 in) over 10 days, accompanied by a high humidity level of 88%. For more detailed insights into this month’s weather, check out Signal Mountain weather in December.

Compare Signal Mountain's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Signal Mountain

In August, Signal Mountain experiences a transition into the peak of summer, characterized by warmer temperatures and increased humidity compared to earlier months. With maximum temperatures soaring and an average that remains comfortably warm, residents and visitors delight in the season's vibrancy. However, this warmth comes with frequent bouts of rain, as August sees precipitation on roughly half the days of the month, making it one of the wetter periods of the year. Overall, while August offers a blend of heat and humidity, its contrast from the cooler, drier months adds a unique charm to the region. For more insights, check out Signal Mountain Climate.