Weather on April 19
Ontario, CA
55 Years of Data
Avg High
74°F
Avg Low
48°F
Warmest
2016
76°F avg
Coldest
1972
46°F avg
About This Date
April 19th in Ontario, CA typically brings pleasant spring weather, with average highs around 74°F and lows near 48°F — a 26°F daily swing. Over 42 years of records, the warmest April 19th was in 2016 (76°F average), while the coldest was 1972 (46°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 10% of April 19th dates historically, with the wettest April 19th recording 1.37" of rain. The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
Planning for April 19th in Ontario, CA? Great weather for outdoor activities.
Warming Trend
2.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 44° | 61° | — | — |
| 2024 | 72° | 53° | 62° | — | — |
| 2023 | 71° | 47° | 59° | — | — |
| 2022 | 75° | 56° | 65° | — | — |
| 2021 | 90° | 50° | 70° | — | — |
| 2020 | 67° | 54° | 60° | — | — |
| 2019 | 90° | 58° | 74° | — | — |
| 2018 | 61° | 47° | 54° | — | — |
| 2017 | 78° | 58° | 68° | — | — |
| 2016warmest | 92° | 60° | 76° | — | — |
| 2015 | 83° | 55° | 69° | — | — |
| 2014 | 79° | 55° | 67° | — | — |
| 2013 | 86° | 48° | 67° | — | — |
| 2012 | 83° | 54° | 68° | — | — |
| 2011 | 69° | 55° | 62° | — | — |
| 2010 | 76° | 53° | 64° | — | — |
| 2009 | 96° | 53° | 75° | — | — |
| 2008 | 66° | 50° | 58° | — | — |
| 2007 | 74° | 45° | 59° | — | — |
| 2006 | 81° | 48° | 64° | — | — |
| 2005 | 66° | 50° | 58° | — | — |
| 2004 | 70° | 46° | 58° | — | — |
| 2003 | 75° | 43° | 59° | — | — |
| 2002 | 68° | 44° | 56° | — | — |
| 2001 | 67° | 50° | 58° | — | — |
| 2000 | 71° | 46° | 59° | — | — |
| 1999 | 91° | 54° | 72° | — | — |
| 1998 | 84° | 44° | 64° | — | — |
| 1984 | 63° | 43° | 53° | 0.64" | — |
| 1983 | 51° | 45° | 48° | 0.3" | — |
| 1982 | 86° | 45° | 65° | — | — |
| 1981 | 55° | 47° | 51° | 1.37" | — |
| 1980 | 92° | 54° | 73° | — | — |
| 1979 | 75° | 38° | 56° | — | — |
| 1978 | 68° | 46° | 57° | — | — |
| 1977 | 81° | 49° | 65° | — | — |
| 1976 | 80° | 42° | 61° | — | — |
| 1975 | 67° | 38° | 52° | — | — |
| 1974 | 65° | 40° | 52° | — | — |
| 1973 | 63° | 40° | 51° | — | — |
| 1972coldest | 53° | 39° | 46° | 0.84" | — |
| 1971 | 59° | 35° | 47° | — | — |
42 years of data from ONTARIO INTL AP