Weather on November 12
Ontario, CA
55 Years of Data
Avg High
73°F
Avg Low
48°F
Warmest
2021
76°F avg
Coldest
1978
44°F avg
About This Date
November 12th in Ontario, CA typically brings pleasant fall weather, with average highs around 73°F and lows near 48°F — a 25°F daily swing. Over 41 years of records, the warmest November 12th was in 2021 (76°F average), while the coldest was 1978 (44°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 17% of November 12th dates historically, with the wettest November 12th recording 2.82" of rain. The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
Planning for November 12th in Ontario, CA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 58° | 67° | — | — |
| 2024 | 72° | 50° | 61° | — | — |
| 2023 | 85° | 45° | 65° | — | — |
| 2022 | 68° | 41° | 55° | — | — |
| 2021warmest | 92° | 61° | 76° | — | — |
| 2020 | 72° | 46° | 59° | — | — |
| 2019 | 87° | 50° | 69° | — | — |
| 2018 | 77° | 47° | 62° | — | — |
| 2017 | 70° | 51° | 60° | — | — |
| 2016 | 84° | 57° | 71° | — | — |
| 2015 | 76° | 39° | 57° | — | — |
| 2014 | 67° | 58° | 62° | — | — |
| 2013 | 78° | 54° | 66° | — | — |
| 2012 | 73° | 38° | 55° | — | — |
| 2011 | 62° | 50° | 56° | 0.28" | — |
| 2010 | 77° | 43° | 60° | — | — |
| 2009 | 71° | 54° | 62° | — | — |
| 2008 | 82° | 49° | 65° | — | — |
| 2007 | 80° | 50° | 65° | — | — |
| 2006 | 74° | 45° | 59° | — | — |
| 2005 | 74° | 46° | 60° | — | — |
| 2004 | 68° | 46° | 57° | — | — |
| 2003 | 66° | 51° | 59° | 1.22" | — |
| 2002 | 80° | 51° | 66° | — | — |
| 2001 | 68° | 52° | 60° | 0.69" | — |
| 2000 | 62° | 37° | 50° | — | — |
| 1999 | 87° | 50° | 69° | — | — |
| 1998 | 71° | 44° | 58° | — | — |
| 1983 | 66° | 59° | 63° | 2.82" | — |
| 1982 | 72° | 41° | 56° | — | — |
| 1981 | 76° | 46° | 61° | — | — |
| 1980 | 67° | 53° | 60° | — | — |
| 1979 | 76° | 44° | 60° | — | — |
| 1978coldest | 55° | 34° | 44° | 0.71" | — |
| 1977 | 78° | 46° | 62° | — | — |
| 1976 | 60° | 50° | 55° | 1.27" | — |
| 1975 | 82° | 44° | 63° | — | — |
| 1974 | 85° | 55° | 70° | — | — |
| 1973 | 73° | 50° | 62° | — | — |
| 1972 | 58° | 38° | 48° | — | — |
| 1971 | 62° | 51° | 57° | 1.7" | — |
41 years of data from ONTARIO INTL AP