Weather on April 19
Ontario, CA
55 Years of Data
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 43 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 9% of April 19th dates historically, with the wettest April 19th recording 0.54" of rain. The last decade has been 5.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.0°F warmer on this date compared to 20-30 years ago.
Planning for April 19th in Ontario, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 83° | 59° | 71° | — | — |
| 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° | 0.25" | — |
| 1983 | 51° | 45° | 48° | 0.12" | — |
| 1982 | 86° | 45° | 65° | — | — |
| 1981 | 55° | 47° | 51° | 0.54" | — |
| 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° | 0.33" | — |
| 1971 | 59° | 35° | 47° | — | — |
Ontario, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Ontario, CA Monthly Precipitation
Average rainfall per month, in inches.
Ontario, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Ontario, CA
Most pleasant months in Ontario, CA: January, February, March, April, May, October, November, December.
What to expect on April 19th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
April 19th outlook →