Weather on April 5
Ontario, CA
55 Years of Data
Avg High
73°F
Avg Low
48°F
Warmest
2016
74°F avg
Coldest
1975
47°F avg
About This Date
April 5th in Ontario, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 48°F — a 25°F daily swing. Over 42 years of records, the warmest April 5th was in 2016 (74°F average), while the coldest was 1975 (47°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 19% of April 5th dates historically, with the wettest April 5th recording 1.52" of rain. The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
Planning for April 5th in Ontario, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 88° | 54° | 71° | — | — |
| 2025 | 89° | 48° | 69° | — | — |
| 2024 | 57° | 42° | 50° | 0.25" | — |
| 2023 | 69° | 40° | 54° | — | — |
| 2022 | 82° | 53° | 68° | — | — |
| 2021 | 77° | 52° | 64° | — | — |
| 2020 | 60° | 52° | 56° | 0.03" | — |
| 2019 | 69° | 57° | 63° | — | — |
| 2018 | 75° | 52° | 63° | — | — |
| 2017 | 87° | 53° | 70° | — | — |
| 2016warmest | 93° | 55° | 74° | — | — |
| 2015 | 73° | 50° | 62° | — | — |
| 2014 | 70° | 47° | 58° | — | — |
| 2013 | 71° | 56° | 63° | — | — |
| 2012 | 67° | 47° | 57° | — | — |
| 2011 | 79° | 51° | 65° | — | — |
| 2010 | 64° | 49° | 56° | 0.84" | — |
| 2009 | 81° | 43° | 62° | — | — |
| 2008 | 64° | 53° | 59° | — | — |
| 2007 | 79° | 55° | 67° | — | — |
| 2006 | 58° | 46° | 52° | 1.52" | — |
| 2005 | 84° | 45° | 64° | — | — |
| 2004 | 70° | 52° | 61° | — | — |
| 2003 | 65° | 39° | 52° | — | — |
| 2002 | 62° | 46° | 54° | — | — |
| 2001 | 64° | 45° | 54° | — | — |
| 2000 | 78° | 51° | 65° | — | — |
| 1999 | 64° | 38° | 51° | — | — |
| 1998 | 66° | 44° | 55° | 0.03" | — |
| 1983 | 63° | 37° | 50° | — | — |
| 1982 | 62° | 41° | 52° | — | — |
| 1981 | 84° | 52° | 68° | — | — |
| 1980 | 65° | 40° | 52° | — | — |
| 1979 | 83° | 50° | 66° | — | — |
| 1978 | 67° | 40° | 53° | 0.1" | — |
| 1977 | 84° | 45° | 64° | — | — |
| 1976 | 57° | 43° | 50° | 0.38" | — |
| 1975coldest | 54° | 40° | 47° | 0.41" | — |
| 1974 | 81° | 46° | 63° | — | — |
| 1973 | 77° | 44° | 61° | — | — |
| 1972 | 78° | 52° | 65° | — | — |
| 1971 | 88° | 50° | 69° | — | — |
42 years of data from ONTARIO INTL AP