Weather on October 23
Rancho Cucamonga, CA
55 Years of Data
About This Date
October 23rd in Rancho Cucamonga, CA typically brings warm fall weather, with average highs around 81°F and lows near 55°F — a 26°F daily swing. Over 41 years of records, the warmest October 23rd was in 2017 (82°F average), while the coldest was 1975 (54°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 5% of October 23rd dates historically. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for October 23rd in Rancho Cucamonga, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 55° | 65° | — | — |
| 2024 | 92° | 60° | 76° | — | — |
| 2023 | 74° | 59° | 66° | — | — |
| 2022 | 72° | 54° | 63° | — | — |
| 2021 | 70° | 59° | 64° | 0.02" | — |
| 2020 | 76° | 63° | 69° | — | — |
| 2019 | 95° | 61° | 78° | — | — |
| 2018 | 83° | 58° | 70° | — | — |
| 2017warmest | 104° | 60° | 82° | — | — |
| 2016 | 77° | 58° | 67° | 0.25" | — |
| 2015 | 88° | 62° | 75° | — | — |
| 2014 | 92° | 59° | 75° | — | — |
| 2013 | 72° | 55° | 63° | — | — |
| 2012 | 71° | 56° | 63° | — | — |
| 2011 | 92° | 57° | 74° | — | — |
| 2010 | 67° | 54° | 60° | — | — |
| 2009 | 92° | 55° | 73° | — | — |
| 2008 | 93° | 57° | 75° | — | — |
| 2007 | 94° | 66° | 80° | — | — |
| 2006 | 91° | 55° | 73° | — | — |
| 2005 | 73° | 60° | 67° | — | — |
| 2004 | 72° | 50° | 61° | — | — |
| 2003 | 98° | 61° | 79° | — | — |
| 2002 | 69° | 52° | 60° | — | — |
| 2001 | 78° | 53° | 66° | — | — |
| 2000 | 73° | 56° | 64° | — | — |
| 1999 | 88° | 55° | 71° | — | — |
| 1998 | 88° | 56° | 72° | — | — |
| 1983 | 82° | 49° | 65° | — | — |
| 1982 | 92° | 60° | 76° | — | — |
| 1981 | 86° | 46° | 66° | — | — |
| 1980 | 90° | 48° | 69° | — | — |
| 1979 | 77° | 51° | 64° | — | — |
| 1978 | 83° | 63° | 73° | — | — |
| 1977 | 83° | 53° | 68° | — | — |
| 1976 | 72° | 52° | 62° | — | — |
| 1975coldest | 67° | 42° | 54° | — | — |
| 1974 | 65° | 48° | 56° | — | — |
| 1973 | 66° | 52° | 59° | — | — |
| 1972 | 80° | 50° | 65° | — | — |
| 1971 | 78° | 47° | 62° | — | — |
Rancho Cucamonga, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Rancho Cucamonga, CA Monthly Precipitation
Average rainfall per month, in inches.
Rancho Cucamonga, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Rancho Cucamonga, CA
Most pleasant months in Rancho Cucamonga, CA: January, February, March, April, May, October, November, December.
What to expect on October 23rd
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
October 23rd outlook →