Nevada County Weather

Nevada County is located in the Sierra Nevada in the State of California.

nevadacountyweather.com

Nevada County Weather Forecast (Grass Valley)

Nevada County Weather And Air Quality Forecasts

	Grass Valley	Nevada City
NOAA Weather	Grass Valley weather	Nevada City weather
Wunderground Weather	Grass Valley weather	Nevada City weather
PurpleAir Air Quality	Grass Valley air quality	Nevada City air quality
Alert California Cameras	Grass Valley and Nevada City

Nevada County Climate Information

Grass Valley, CA has a hot-summer Mediterranean climate (Köppen climate classification Csa) with warm to hot, dry summers and wet, cool, rainy winters.

On average Grass Valley gets over 50 inches of precipitation a year, with close to no precipitation in the summer months. Rain events happen mostly between October and April. Mixed precipitation events of snow and rain occur in Grass Valley, but substantial snow fall events are becoming less common over time.

Nevada City, CA has a hot-summer Mediterranean climate (Köppen climate classification Csa) with warm to hot, dry summers and wet, cool, rainy winters.

On average Nevada City gets over 50 inches of precipitation a year. Most of this falls as rain between October and April, but occasional snow events and thunderstorms are not unknown.

Climate Change and Nevada County

California’s climate is changing. All of the state is becoming warmer. Heat waves are becoming more common, and snow is melting earlier in spring. Snow events are less common than they used to be and more precipitation falls as rain.

Larfge scale events such as El Nino and La Nina change the weather from year to year, so there are exceptional events like droughts and heavy snow storms, but the trend is to a warmer existence.

Nevada County is no exception with warmer summers becoming the norm. Over the last 50 years there has been a warming trend of just under one degree a decade.

Nevada County August Temperatures last 50 years

Atmospheric Rivers and Nevada County

Atmospheric rivers, essentially large conduits of moisture in the atmosphere, have led to considerable rainfall events in Nevada County. With a warming climate the expectation is that there will be an increase in the frequency and intensity of atmospheric river events in the future.

Illustration of Atmospheric Rivers and Categories

These events have the capacity to impact Nevada County in a number of ways including eroding slopes, causing road damage, and flooding. Minor category atmospheric rivers can be beneficial to Nevada County as they bring an increase in precipitation, without the destructive effects.