Janesville, CA enjoys a mild climate year round with generally mild winters and warm summers. This city experiences an average of 350 sunny days each year and temperatures rarely drop below freezing. Summertime temperatures tend to reach the high 90's but usually fall into the mid 80's during the day. The nights remain cool throughout the year, typically decreasing into the 50's or low 60's even in the summertime. Rain is rare in Janesville and when it does rain it tends to be light showers that don't last for long periods of time.
Janesville, California gets 13 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Janesville averages 19 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 246 sunny days per year in Janesville. The US average is 205 sunny days.
Janesville gets some kind of precipitation, on average, 49 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 88 degrees
Winter Low: the January low is 24
Rain: averages 13 inches of rain a year
Snow: averages 19 inches of snow a year