Weather on November 20
Rancho Cucamonga, CA
55 Years of Data
Avg High
71°F
Avg Low
46°F
Warmest
2002
73°F avg
Coldest
1973
47°F avg
About This Date
November 20th in Rancho Cucamonga, CA typically brings pleasant fall weather, with average highs around 71°F and lows near 46°F — a 25°F daily swing. Over 41 years of records, the warmest November 20th was in 2002 (73°F average), while the coldest was 1973 (47°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 20% of November 20th dates historically, with the wettest November 20th recording 2.08" of rain. The last decade has been 2.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.9°F cooler on this date compared to 20-30 years ago.
Planning for November 20th in Rancho Cucamonga, CA? Great weather for outdoor activities.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 47° | 53° | 1.6" | — |
| 2024 | 74° | 45° | 59° | — | — |
| 2023 | 73° | 53° | 63° | — | — |
| 2022 | 76° | 39° | 57° | — | — |
| 2021 | 70° | 50° | 60° | — | — |
| 2020 | 79° | 51° | 65° | — | — |
| 2019 | 61° | 50° | 55° | 0.86" | — |
| 2018 | 73° | 47° | 60° | — | — |
| 2017 | 76° | 48° | 62° | — | — |
| 2016 | 69° | 52° | 60° | 0.91" | — |
| 2015 | 87° | 49° | 68° | — | — |
| 2014 | 68° | 47° | 57° | — | — |
| 2013 | 62° | 55° | 59° | 0.13" | — |
| 2012 | 76° | 47° | 61° | — | — |
| 2011 | 57° | 47° | 52° | 1.88" | — |
| 2010 | 57° | 51° | 54° | 2.08" | — |
| 2009 | 74° | 45° | 59° | — | — |
| 2008 | 82° | 54° | 68° | — | — |
| 2007 | 72° | 49° | 60° | — | — |
| 2006 | 88° | 54° | 71° | — | — |
| 2005 | 88° | 50° | 69° | — | — |
| 2004 | 65° | 48° | 56° | 0.33" | — |
| 2003 | 73° | 46° | 60° | — | — |
| 2002warmest | 89° | 58° | 73° | — | — |
| 2001 | 79° | 52° | 65° | — | — |
| 2000 | 79° | 42° | 60° | — | — |
| 1999 | 63° | 52° | 57° | 0.1" | — |
| 1998 | 75° | 41° | 58° | — | — |
| 1983 | 60° | 39° | 50° | — | — |
| 1982 | 64° | 46° | 55° | — | — |
| 1981 | 77° | 40° | 58° | — | — |
| 1980 | 74° | 46° | 60° | — | — |
| 1979 | 61° | 36° | 48° | — | — |
| 1978 | 62° | 40° | 51° | — | — |
| 1977 | 60° | 38° | 49° | — | — |
| 1976 | 75° | 48° | 62° | — | — |
| 1975 | 65° | 36° | 50° | — | — |
| 1974 | 75° | 47° | 61° | — | — |
| 1973coldest | 59° | 36° | 47° | — | — |
| 1972 | 64° | 39° | 52° | — | — |
| 1971 | 68° | 44° | 56° | — | — |
41 years of data from ONTARIO INTL AP