The remote server returned an error: (500) Internal Server Error. Rancho Cucamonga (zip 91730), California Weather

Zip 91730 (Rancho Cucamonga, CA) Weather


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The most pleasant months of the year for the 91730 zip code are May, April and October. In the 91730 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for the 91730 zip code with an average high temperature of 94.0°, which ranks it as warmer than most places in California. Any measurable snowfall is a rare occurance in the 91730 zip code. There are few days during the summer when the humidity becomes unpleasant.


Weather Highlights

Summer High: the July high is around 93 degrees
Winter Low: the January low is 43
Rain: averages 17 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Rancho Cucamonga (zip 91730) area is 8.4 (10=best), which means it is more comfortable than most places in California.

8.4 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January67° 43°
February68° 45°
March71° 47°
April76° 50°
May80° 55°
June86° 58°
July93° 63°
August94° 64°
September90° 61°
October82° 55°
November74° 47°
December67° 42°
Hot, Freezing, Rainy, Snowy Days: Rancho Cucamonga
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0150
February0060
March1050
April2020
May5010
June10000
July21000
August23000
September16010
October6020
November1030
December0140

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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