Constructed from our DriSmart fabric, our performance shirts are lightweight, breathable, and provide exceptional moisture wicking.
Guide to Jamestown weather in August. The average maximum daytime temperature in Jamestown in August is a warm 28Â°C (82Â°F) with low heat & humidity. The average night-time temperature is usually a cool 13Â°C (55Â°F). There are usually 10 hours of bright sunshine each day, which represents 70% of the 14 hours of daylight.
CLIMATE OVERVIEW : Jamestown, California, gets 35 inches of rain per year. The US average is 39. Snowfall is 25 inches. The average US city gets 26 inches of snow per year. The number of days with any measurable precipitation is 40. On average, there are 264 sunny days per year in Jamestown, California. The July high is around 93 degrees. The January low is 35. Sperling's comfort index for Jamestown is a 78 out of 100, where a higher score indicates a more comfortable year-around climate. The US average for the comfort index is 54. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.