Weather on November 18
Rancho Cucamonga, CA
55 Years of Data
Avg High
72°F
Avg Low
46°F
Warmest
2005
71°F avg
Coldest
1973
49°F avg
About This Date
November 18th in Rancho Cucamonga, CA typically brings pleasant fall weather, with average highs around 72°F and lows near 46°F — a 26°F daily swing. Over 41 years of records, the warmest November 18th was in 2005 (71°F average), while the coldest was 1973 (49°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 2% of November 18th dates historically, with the wettest November 18th recording 3.48" of rain. 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 November 18th in Rancho Cucamonga, CA? Great weather for outdoor activities.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 45° | 52° | — | — |
| 2024 | 64° | 42° | 53° | — | — |
| 2023 | 71° | 58° | 64° | — | — |
| 2022 | 71° | 42° | 57° | — | — |
| 2021 | 74° | 49° | 61° | — | — |
| 2020 | 69° | 48° | 59° | — | — |
| 2019 | 91° | 51° | 71° | — | — |
| 2018 | 77° | 49° | 63° | — | — |
| 2017 | 79° | 51° | 65° | — | — |
| 2016 | 78° | 43° | 60° | — | — |
| 2015 | 77° | 45° | 61° | — | — |
| 2014 | 77° | 46° | 62° | — | — |
| 2013 | 68° | 47° | 57° | — | — |
| 2012 | 69° | 52° | 60° | — | — |
| 2011 | 56° | 50° | 53° | — | — |
| 2010 | 79° | 49° | 64° | — | — |
| 2009 | 71° | 45° | 58° | — | — |
| 2008 | 88° | 55° | 71° | — | — |
| 2007 | 76° | 47° | 61° | — | — |
| 2006 | 86° | 53° | 70° | — | — |
| 2005warmest | 87° | 56° | 71° | — | — |
| 2004 | 75° | 48° | 62° | — | — |
| 2003 | 79° | 44° | 61° | — | — |
| 2002 | 82° | 45° | 63° | — | — |
| 2001 | 76° | 46° | 61° | — | — |
| 2000 | 70° | 41° | 55° | — | — |
| 1999 | 67° | 46° | 56° | — | — |
| 1998 | 67° | 46° | 56° | — | — |
| 1983 | 66° | 45° | 55° | — | — |
| 1982 | 63° | 43° | 53° | — | — |
| 1981 | 76° | 43° | 59° | — | — |
| 1980 | 70° | 38° | 54° | — | — |
| 1979 | 64° | 45° | 54° | — | — |
| 1978 | 72° | 43° | 57° | — | — |
| 1977 | 66° | 46° | 56° | — | — |
| 1976 | 80° | 53° | 67° | — | — |
| 1975 | 57° | 42° | 50° | — | — |
| 1974 | 62° | 44° | 53° | — | — |
| 1973coldest | 56° | 43° | 49° | 3.48" | — |
| 1972 | 61° | 40° | 50° | — | — |
| 1971 | 60° | 39° | 50° | — | — |
41 years of data from ONTARIO INTL AP