Weather on November 17
Ontario, CA
55 Years of Data
Avg High
72°F
Avg Low
48°F
Warmest
2019
75°F avg
Coldest
1975
49°F avg
About This Date
November 17th in Ontario, CA typically brings pleasant fall weather, with average highs around 72°F and lows near 48°F. Over 41 years of records, the warmest November 17th was in 2019 (75°F average), while the coldest was 1975 (49°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 12% of November 17th dates historically, with the wettest November 17th recording 1.17" of rain. The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
Planning for November 17th 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 | 65° | 51° | 58° | 1.17" | — |
| 2024 | 69° | 40° | 54° | — | — |
| 2023 | 76° | 53° | 64° | — | — |
| 2022 | 76° | 41° | 58° | — | — |
| 2021 | 71° | 53° | 62° | — | — |
| 2020 | 83° | 51° | 67° | — | — |
| 2019warmest | 92° | 59° | 75° | — | — |
| 2018 | 74° | 47° | 60° | — | — |
| 2017 | 73° | 60° | 67° | — | — |
| 2016 | 72° | 47° | 59° | — | — |
| 2015 | 74° | 39° | 56° | — | — |
| 2014 | 78° | 49° | 63° | — | — |
| 2013 | 69° | 53° | 61° | — | — |
| 2012 | 68° | 57° | 63° | 0.1" | — |
| 2011 | 76° | 49° | 62° | — | — |
| 2010 | 79° | 45° | 62° | — | — |
| 2009 | 80° | 46° | 63° | — | — |
| 2008 | 90° | 52° | 71° | — | — |
| 2007 | 72° | 53° | 62° | — | — |
| 2006 | 81° | 52° | 66° | — | — |
| 2005 | 83° | 46° | 64° | — | — |
| 2004 | 74° | 51° | 62° | — | — |
| 2003 | 62° | 45° | 53° | — | — |
| 2002 | 76° | 46° | 61° | — | — |
| 2001 | 74° | 49° | 61° | — | — |
| 2000 | 66° | 44° | 55° | — | — |
| 1999 | 67° | 50° | 58° | — | — |
| 1998 | 62° | 52° | 57° | — | — |
| 1983 | 63° | 48° | 55° | — | — |
| 1982 | 71° | 47° | 59° | — | — |
| 1981 | 69° | 46° | 58° | — | — |
| 1980 | 67° | 38° | 52° | — | — |
| 1979 | 67° | 49° | 58° | 0.13" | — |
| 1978 | 66° | 39° | 53° | — | — |
| 1977 | 79° | 50° | 64° | — | — |
| 1976 | 81° | 57° | 69° | — | — |
| 1975coldest | 61° | 37° | 49° | — | — |
| 1974 | 63° | 42° | 52° | — | — |
| 1973 | 59° | 52° | 55° | 0.25" | — |
| 1972 | 59° | 42° | 51° | 0.33" | — |
| 1971 | 64° | 38° | 51° | — | — |
41 years of data from ONTARIO INTL AP