Weather on August 10
Rancho Cucamonga, CA
55 Years of Data
Avg High
93°F
Avg Low
64°F
Warmest
2012
89°F avg
Coldest
1999
69°F avg
About This Date
August 10th in Rancho Cucamonga, CA typically brings hot summer weather, with average highs around 93°F and lows near 64°F — a 29°F daily swing. Over 41 years of records, the warmest August 10th was in 2012 (89°F average), while the coldest was 1999 (69°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 10th dates historically. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 10th in Rancho Cucamonga, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 66° | 81° | — | — |
| 2024 | 101° | 68° | 84° | — | — |
| 2023 | 83° | 67° | 75° | — | — |
| 2022 | 99° | 72° | 85° | — | — |
| 2021 | 100° | 68° | 84° | — | — |
| 2020 | 95° | 63° | 79° | — | — |
| 2019 | 88° | 62° | 75° | — | — |
| 2018 | 96° | 75° | 86° | — | — |
| 2017 | 97° | 66° | 81° | — | — |
| 2016 | 93° | 61° | 77° | — | — |
| 2015 | 87° | 60° | 74° | — | — |
| 2014 | 96° | 65° | 80° | — | — |
| 2013 | 84° | 58° | 71° | — | — |
| 2012warmest | 104° | 73° | 89° | — | — |
| 2011 | 84° | 60° | 72° | — | — |
| 2010 | 88° | 58° | 73° | — | — |
| 2009 | 93° | 61° | 77° | — | — |
| 2008 | 93° | 65° | 79° | — | — |
| 2007 | 91° | 62° | 77° | — | — |
| 2006 | 96° | 69° | 83° | — | — |
| 2005 | 90° | 67° | 78° | — | — |
| 2004 | 102° | 69° | 86° | — | — |
| 2003 | 102° | 70° | 86° | — | — |
| 2002 | 101° | 66° | 83° | — | — |
| 2001 | 93° | 61° | 77° | — | — |
| 2000 | 100° | 66° | 83° | — | — |
| 1999coldest | 80° | 58° | 69° | — | — |
| 1998 | 93° | 74° | 83° | 0.05" | — |
| 1983 | 93° | 66° | 80° | — | — |
| 1982 | 98° | 59° | 79° | — | — |
| 1981 | 97° | 63° | 80° | — | — |
| 1980 | 100° | 66° | 83° | — | — |
| 1979 | 93° | 60° | 77° | — | — |
| 1978 | 92° | 62° | 77° | — | — |
| 1977 | 91° | 54° | 72° | — | — |
| 1976 | 90° | 53° | 71° | — | — |
| 1975 | 90° | 61° | 75° | — | — |
| 1974 | 84° | 56° | 70° | — | — |
| 1973 | 87° | 55° | 71° | — | — |
| 1972 | 94° | 63° | 78° | — | — |
| 1971 | 97° | 65° | 81° | — | — |
41 years of data from ONTARIO INTL AP