Weather on November 15
Ontario, CA
55 Years of Data
Avg High
74°F
Avg Low
48°F
Warmest
2008
74°F avg
Coldest
1971
48°F avg
About This Date
November 15th in Ontario, CA typically brings pleasant fall weather, with average highs around 74°F and lows near 48°F — a 26°F daily swing. Over 41 years of records, the warmest November 15th was in 2008 (74°F average), while the coldest was 1971 (48°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 15% of November 15th dates historically, with the wettest November 15th recording 2.49" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for November 15th in Ontario, CA? Great weather for outdoor activities.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 55° | 60° | 2.21" | — |
| 2024 | 63° | 49° | 56° | 0.1" | — |
| 2023 | 69° | 51° | 60° | 0.81" | — |
| 2022 | 74° | 43° | 58° | — | — |
| 2021 | 86° | 54° | 70° | — | — |
| 2020 | 86° | 45° | 65° | — | — |
| 2019 | 73° | 50° | 62° | — | — |
| 2018 | 80° | 48° | 64° | — | — |
| 2017 | 79° | 54° | 66° | — | — |
| 2016 | 84° | 55° | 70° | — | — |
| 2015 | 67° | 46° | 56° | — | — |
| 2014 | 70° | 58° | 64° | — | — |
| 2013 | 68° | 53° | 61° | — | — |
| 2012 | 72° | 52° | 62° | — | — |
| 2011 | 67° | 52° | 59° | — | — |
| 2010 | 77° | 48° | 63° | — | — |
| 2009 | 72° | 41° | 56° | — | — |
| 2008warmest | 91° | 58° | 74° | — | — |
| 2007 | 88° | 56° | 72° | — | — |
| 2006 | 85° | 50° | 67° | 0.03" | — |
| 2005 | 83° | 54° | 68° | — | — |
| 2004 | 76° | 54° | 65° | — | — |
| 2003 | 60° | 50° | 55° | 0.38" | — |
| 2002 | 85° | 53° | 69° | — | — |
| 2001 | 79° | 49° | 64° | — | — |
| 2000 | 60° | 35° | 48° | — | — |
| 1999 | 77° | 54° | 65° | — | — |
| 1998 | 75° | 41° | 58° | — | — |
| 1983 | 76° | 44° | 60° | — | — |
| 1982 | 76° | 37° | 56° | — | — |
| 1981 | 74° | 45° | 59° | — | — |
| 1980 | 67° | 36° | 51° | — | — |
| 1979 | 80° | 50° | 65° | — | — |
| 1978 | 63° | 39° | 51° | — | — |
| 1977 | 82° | 54° | 68° | — | — |
| 1976 | 72° | 46° | 59° | — | — |
| 1975 | 75° | 45° | 60° | — | — |
| 1974 | 68° | 41° | 55° | — | — |
| 1973 | 65° | 38° | 51° | — | — |
| 1972 | 59° | 43° | 51° | 2.49" | — |
| 1971coldest | 61° | 35° | 48° | — | — |
41 years of data from ONTARIO INTL AP