Johnstonville is a city of approximately 1,000 people in California, United States. Located in the Pacific Time Zone at 40.4°N latitude.
In 2025, Johnstonville averaged an annual temperature of 53°F, with hottest temperatures reaching 102°F in July and lowest around 2°F in February. The city received approximately 29 inches of precipitation during the year.
View historical weather for Johnstonville · More cities in California