Weather on October 8
Rancho Cucamonga, CA
55 Years of Data
Avg High
84°F
Avg Low
57°F
Warmest
2008
81°F avg
Coldest
1973
58°F avg
About This Date
October 8th in Rancho Cucamonga, CA typically brings warm fall weather, with average highs around 84°F and lows near 57°F — a 27°F daily swing. Over 41 years of records, the warmest October 8th was in 2008 (81°F average), while the coldest was 1973 (58°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 5% of October 8th dates historically, with the wettest October 8th recording 0.53" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for October 8th in Rancho Cucamonga, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 56° | 68° | — | — |
| 2024 | 96° | 65° | 80° | — | — |
| 2023 | 95° | 66° | 81° | — | — |
| 2022 | 90° | 64° | 77° | — | — |
| 2021 | 71° | 61° | 66° | 0.15" | — |
| 2020 | 80° | 63° | 71° | — | — |
| 2019 | 88° | 56° | 72° | — | — |
| 2018 | 80° | 59° | 70° | — | — |
| 2017 | 84° | 56° | 70° | — | — |
| 2016 | 94° | 58° | 76° | — | — |
| 2015 | 96° | 64° | 80° | — | — |
| 2014 | 91° | 63° | 77° | — | — |
| 2013 | 76° | 54° | 65° | — | — |
| 2012 | 81° | 59° | 70° | — | — |
| 2011 | 80° | 50° | 65° | — | — |
| 2010 | 81° | 52° | 66° | — | — |
| 2009 | 75° | 53° | 64° | — | — |
| 2008warmest | 98° | 65° | 81° | — | — |
| 2007 | 89° | 51° | 70° | — | — |
| 2006 | 79° | 52° | 65° | — | — |
| 2005 | 74° | 56° | 65° | — | — |
| 2004 | 97° | 58° | 77° | — | — |
| 2003 | 90° | 58° | 74° | — | — |
| 2002 | 93° | 59° | 76° | — | — |
| 2001 | 74° | 54° | 64° | — | — |
| 2000 | 76° | 54° | 65° | — | — |
| 1999 | 97° | 60° | 78° | — | — |
| 1998 | 85° | 53° | 69° | — | — |
| 1983 | 73° | 61° | 67° | — | — |
| 1982 | 82° | 52° | 67° | — | — |
| 1981 | 77° | 55° | 66° | — | — |
| 1980 | 96° | 56° | 76° | — | — |
| 1979 | 77° | 53° | 65° | — | — |
| 1978 | 89° | 58° | 73° | — | — |
| 1977 | 87° | 62° | 75° | — | — |
| 1976 | 89° | 58° | 73° | — | — |
| 1975 | 74° | 44° | 59° | — | — |
| 1974 | 68° | 58° | 63° | — | — |
| 1973coldest | 64° | 51° | 58° | 0.53" | — |
| 1972 | 70° | 53° | 61° | — | — |
| 1971 | 92° | 57° | 74° | — | — |
41 years of data from ONTARIO INTL AP