Weather on June 23
Rancho Cucamonga, CA
55 Years of Data
About This Date
June 23rd in Rancho Cucamonga, CA typically brings warm summer weather, with average highs around 89°F and lows near 59°F — a 30°F daily swing. Over 42 years of records, the warmest June 23rd was in 2024 (87°F average), while the coldest was 1972 (65°F) — a 22°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for June 23rd in Rancho Cucamonga, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 59° | 71° | — | — |
| 2024warmest | 100° | 73° | 87° | — | — |
| 2023 | 80° | 54° | 67° | — | — |
| 2022 | 97° | 70° | 83° | — | — |
| 2021 | 94° | 64° | 79° | — | — |
| 2020 | 91° | 62° | 77° | — | — |
| 2019 | 94° | 60° | 77° | — | — |
| 2018 | 82° | 61° | 71° | — | — |
| 2017 | 91° | 62° | 77° | — | — |
| 2016 | 91° | 62° | 77° | — | — |
| 2015 | 96° | 65° | 80° | — | — |
| 2014 | 87° | 59° | 73° | — | — |
| 2013 | 82° | 61° | 71° | — | — |
| 2012 | 85° | 58° | 71° | — | — |
| 2011 | 91° | 60° | 76° | — | — |
| 2010 | 86° | 57° | 72° | — | — |
| 2009 | 85° | 57° | 71° | — | — |
| 2008 | 95° | 68° | 82° | — | — |
| 2007 | 87° | 61° | 74° | — | — |
| 2006 | 94° | 61° | 77° | — | — |
| 2005 | 89° | 59° | 74° | — | — |
| 2004 | 90° | 62° | 76° | — | — |
| 2003 | 72° | 58° | 65° | — | — |
| 2002 | 89° | 58° | 73° | — | — |
| 2001 | 94° | 65° | 79° | — | — |
| 2000 | 85° | 61° | 73° | — | — |
| 1999 | 90° | 58° | 74° | — | — |
| 1998 | 81° | 57° | 69° | — | — |
| 1984 | 98° | 51° | 75° | — | — |
| 1983 | 86° | 52° | 69° | — | — |
| 1982 | 73° | 57° | 65° | — | — |
| 1981 | 97° | 63° | 80° | — | — |
| 1980 | 87° | 51° | 69° | — | — |
| 1979 | 88° | 53° | 70° | — | — |
| 1978 | 98° | 61° | 79° | — | — |
| 1977 | 87° | 57° | 72° | — | — |
| 1976 | 100° | 59° | 80° | — | — |
| 1975 | 80° | 52° | 66° | — | — |
| 1974 | 96° | 46° | 71° | — | — |
| 1973 | 100° | 62° | 81° | — | — |
| 1972coldest | 74° | 57° | 65° | — | — |
| 1971 | 94° | 55° | 74° | — | — |
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
Rancho Cucamonga, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.