2025 Compare Climate & Weather:
Rancho Cucamonga, CA vs Chino Valley, AZ

Highlights

On average, there are 278 sunny days per year in Chino Valley. Rancho Cucamonga averages 287 sunny days per year. The US average is 205 sunny days.

Chino Valley, Arizona gets 15.6 inches of rain, on average, per year. Rancho Cucamonga, California gets 19.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Chino Valley averages 12.2 inches of snow per year. Rancho Cucamonga averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Chino Valley, Arizona
Summer High: the July high is around 90.8 degrees
Winter Low: the January low is 27.8
Rain: averages 15.6 inches of rain a year
Snow: averages 12.2 inches of snow a year

Rancho Cucamonga, California
Summer High: the July high is around 92.9 degrees
Winter Low: the January low is 42.7
Rain: averages 19.1 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Chino Valley is 7.9 (10=best), which means it is one of the most pleasant places in Arizona.

The annual BestPlaces Comfort Index for Rancho Cucamonga is 8.7 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Rancho Cucamonga, CA

71°F

Today's Weather - Chino Valley, AZ

52°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Rancho Cucamonga / Chino Valley

August is the hottest month for Rancho Cucamonga with an average high temperature of 94.2°, which ranks it as warmer than most places in California. In Rancho Cucamonga, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rancho Cucamonga are May, April and October.

July is the hottest month for Chino Valley with an average high temperature of 90.8°, which ranks it as cooler than most places in Arizona. In Chino Valley, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chino Valley are May, September and October.

December has the coldest nighttime temperatures for Rancho Cucamonga with an average of 41.8°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Chino Valley with an average of 27.0°. This is colder than most places in Arizona.

In Rancho Cucamonga, there are 86.4 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Chino Valley, there are 49.0 days annually when the high temperature is over 90°, which is cooler than most places in Arizona.

In Rancho Cucamonga, there are 2.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Chino Valley, there are 97.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Arizona.

In Rancho Cucamonga, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

In Chino Valley, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Arizona.

February is the wettest month in Rancho Cucamonga with 4.6 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 59% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 19.1 inches in Rancho Cucamonga means that it is about average compared to other places in California.


August is the wettest month in Chino Valley with 2.6 inches of rain, and the driest month is June with 0.4 inches. The wettest season is Autumn with 33% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 15.6 inches in Chino Valley means that it is wetter than most places in Arizona.

February is the rainiest month in Rancho Cucamonga with 6.4 days of rain, and July is the driest month with only 0.4 rainy days. There are 35.9 rainy days annually in Rancho Cucamonga, which is less rainy than most places in California. The rainiest season is Spring when it rains 47% of the time and the driest is Autumn with only a 4% chance of a rainy day.

August is the rainiest month in Chino Valley with 9.9 days of rain, and June is the driest month with only 2.0 rainy days. There are 62.9 rainy days annually in Chino Valley, which is rainier than most places in Arizona. The rainiest season is Autumn when it rains 33% of the time and the driest is Summer with only a 20% chance of a rainy day.

There is rarely any recorded snowfall in Rancho Cucamonga, ranking it as one of the least snowy places in California.

An annual snowfall of 12.2 inches in Chino Valley means that it is snowier than most places in Arizona.

Any measurable snowfall is a rare occurance in Rancho Cucamonga.

February is the snowiest month in Chino Valley with 3.5 inches of snow, and 6 months of the year have significant snowfall.