Weather on June 9
Rancho Cucamonga, CA
55 Years of Data
Avg High
82°F
Avg Low
57°F
Warmest
2019
84°F avg
Coldest
1971
60°F avg
About This Date
June 9th in Rancho Cucamonga, CA typically brings warm summer weather, with average highs around 82°F and lows near 57°F — a 25°F daily swing. Over 42 years of records, the warmest June 9th was in 2019 (84°F average), while the coldest was 1971 (60°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 9th dates historically. The last decade has been 7.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.8°F warmer on this date compared to 20-30 years ago.
Planning for June 9th in Rancho Cucamonga, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 58° | 71° | — | — |
| 2024 | 80° | 59° | 70° | — | — |
| 2023 | 72° | 57° | 64° | — | — |
| 2022 | 96° | 60° | 78° | — | — |
| 2021 | 83° | 59° | 71° | — | — |
| 2020 | 97° | 57° | 77° | — | — |
| 2019warmest | 105° | 62° | 84° | — | — |
| 2018 | 89° | 61° | 75° | — | — |
| 2017 | 82° | 57° | 70° | — | — |
| 2016 | 81° | 59° | 70° | — | — |
| 2015 | 89° | 67° | 78° | — | — |
| 2014 | 94° | 62° | 78° | — | — |
| 2013 | 87° | 60° | 74° | — | — |
| 2012 | 80° | 57° | 69° | — | — |
| 2011 | 73° | 57° | 65° | — | — |
| 2010 | 80° | 60° | 70° | — | — |
| 2009 | 70° | 56° | 63° | — | — |
| 2008 | 95° | 57° | 76° | — | — |
| 2007 | 81° | 55° | 68° | — | — |
| 2006 | 81° | 63° | 72° | — | — |
| 2005 | 72° | 57° | 64° | — | — |
| 2004 | 72° | 56° | 64° | — | — |
| 2003 | 68° | 58° | 63° | — | — |
| 2002 | 73° | 56° | 64° | — | — |
| 2001 | 90° | 59° | 74° | — | — |
| 2000 | 79° | 49° | 64° | — | — |
| 1999 | 75° | 55° | 65° | — | — |
| 1998 | 73° | 56° | 64° | — | — |
| 1984 | 95° | 50° | 73° | — | — |
| 1983 | 76° | 58° | 67° | — | — |
| 1982 | 79° | 47° | 63° | — | — |
| 1981 | 91° | 59° | 75° | — | — |
| 1980 | 90° | 54° | 72° | — | — |
| 1979 | 99° | 54° | 76° | — | — |
| 1978 | 93° | 56° | 74° | — | — |
| 1977 | 71° | 56° | 63° | 0.05" | — |
| 1976 | 70° | 50° | 60° | — | — |
| 1975 | 82° | 48° | 65° | — | — |
| 1974 | 88° | 48° | 68° | — | — |
| 1973 | 91° | 57° | 74° | — | — |
| 1972 | 71° | 59° | 65° | — | — |
| 1971coldest | 67° | 54° | 60° | — | — |
42 years of data from ONTARIO INTL AP