Gwinnett County, Georgia has a humid subtropical climate. It experiences hot and humid summers with temperatures reaching the low 90s. It also gets mild winters with temperatures usually staying above freezing. During the spring and fall months, Gwinnett County is known for its pleasant and comfortable weather. Precipitation is evenly distributed throughout the year, with most of it falling in the form of rain. Snow rarely falls in Gwinnett County, although it occasionally visits during winter months.
Gwinnett County, Georgia gets 53 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Gwinnett County averages 1 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 217 sunny days per year in Gwinnett County. The US average is 205 sunny days.
Gwinnett County gets some kind of precipitation, on average, 104 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 89 degrees
Winter Low: the January low is 31
Rain: averages 53 inches of rain a year
Snow: averages 1 inches of snow a year