+34.1064° · -117.5931° · ELEV 0m

Rancho Cucamonga

United States · California

Monthly weather averages for Rancho Cucamonga, United States — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.

№ 01

Climate Overview

August → January

Rancho Cucamonga has a Mediterranean climate. The warmest month is August (34°C average high) and the coolest is December (17°C).

№ 02

Rainfall by Month

452 mm / year

Rancho Cucamonga sees 452 mm of rain a year. The wettest month is January (101 mm); the driest is June (2 mm).

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№ 03

Best Time to Visit

April–June
April–June
11°C – 30°C · 12.0h sun

The best time to visit Rancho Cucamonga is April–June, when temperatures average 11°C–30°C with 12.0 sunshine hours per day.

№ 04

Monthly Breakdown

12 months · °C · mm · hours
Monthly climate normals for Rancho Cucamonga, United States — click a column to sort
January18.0°C7.1°C101 mm8.4 h06:5517:03
February19.3°C7.1°C65 mm9.2 h06:3517:33
March20.3°C8.7°C82 mm10.2 h07:0018:57
April24.1°C10.8°C23 mm11.2 h06:1919:21
May25.1°C12.3°C15 mm11.8 h05:4819:44
June30.4°C15.4°C2 mm13.1 h05:3820:03
July33.6°C18.4°C4 mm13.6 h05:4920:02
August34.1°C19.1°C8 mm12.6 h06:1119:38
September32.0°C18.0°C16 mm11.3 h06:3318:57
October28.0°C14.8°C16 mm10.2 h06:5518:16
November22.8°C10.2°C33 mm9.4 h06:2316:46
December17.4°C7.2°C87 mm8.1 h06:4816:42

Nearby cities

View monthly climate averages for nearby cities or compare them with Rancho Cucamonga.

Temperature, rainfall and sunshine, month by month.