Last updated: June 24, 2025
In August, the average temperature in Sterling, United States hovers around 15°C (59°F), making it a mild time of year. Temperatures can dip to a minimum of 6°C (42°F), while highs can reach up to 26°C (80°F). Expect significant moisture with an average precipitation amount of 98 mm (3.9 in) spread over 14 days. Note that the average humidity is quite high at 99%, so prepare for a largely damp atmosphere!
In August in Sterling, the average temperature is 15°C (59°F), with maximums reaching up to 26°C (80°F) and minimums dipping as low as 6°C (42°F). This pleasant range of temperatures makes Sterling an ideal destination for travelers seeking mild weather and outdoor adventures.
In Sterling in August, the precipitation amount reaches 98 mm (3.9 in) over a span of 14 days.
In Sterling in August, humidity is 99%. With an average temperature of 15°C (59°F), this humidity feels like walking through a thick fog, making travel uncomfortable as the air clings to your skin and each step feels heavier in the damp atmosphere.
In Sterling in August, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Sterling, you can refer to this Hourly UV Index in Sterling.
UV Risk Categories
Weather in Sterling varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Sterling, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (19°F) | 53 mm (2.1 inches) | 95% | low |
| February Weather | -5°C (23°F) | 50 mm (1.9 inches) | 95% | low |
| March Weather | -3°C (27°F) | 39 mm (1.5 inches) | 90% | moderate |
| April Weather | 4°C (39°F) | 36 mm (1.4 inches) | 82% | moderate |
| May Weather | 10°C (49°F) | 67 mm (2.6 inches) | 85% | high |
| June Weather | 13°C (56°F) | 66 mm (2.6 inches) | 95% | high |
| July Weather | 16°C (61°F) | 75 mm (2.9 inches) | 100% | high |
| August Weather | 15°C (59°F) | 98 mm (3.9 inches) | 99% | high |
| September Weather | 11°C (51°F) | 113 mm (4.4 inches) | 97% | moderate |
| October Weather | 5°C (42°F) | 127 mm (5.0 inches) | 93% | low |
| November Weather | -2°C (28°F) | 91 mm (3.6 inches) | 97% | low |
| December Weather | -3°C (26°F) | 110 mm (4.3 inches) | 98% | low |