Weather on April 8
Ontario, CA
55 Years of Data
Avg High
72°F
Avg Low
48°F
Warmest
2022
83°F avg
Coldest
1975
42°F avg
About This Date
April 8th in Ontario, CA typically brings pleasant spring weather, with average highs around 72°F and lows near 48°F. Over 42 years of records, the warmest April 8th was in 2022 (83°F average), while the coldest was 1975 (42°F) — a 41°F range across recorded history. Rain or other precipitation has occurred on about 19% of April 8th dates historically. The last decade has been 8.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.0°F warmer on this date compared to 20-30 years ago.
Planning for April 8th in Ontario, CA? Great weather for outdoor activities.
Warming Trend
2.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 83° | 59° | 71° | — | — |
| 2025 | 83° | 55° | 69° | — | — |
| 2024 | 72° | 44° | 58° | — | — |
| 2023 | 72° | 47° | 59° | — | — |
| 2022warmest | 98° | 68° | 83° | — | — |
| 2021 | 79° | 54° | 66° | — | — |
| 2020 | 58° | 48° | 53° | 0.38" | — |
| 2019 | 94° | 60° | 77° | — | — |
| 2018 | 81° | 58° | 69° | — | — |
| 2017 | 71° | 50° | 61° | 0.1" | — |
| 2016 | 62° | 56° | 59° | 0.23" | — |
| 2015 | 70° | 48° | 59° | — | — |
| 2014 | 93° | 58° | 75° | — | — |
| 2013 | 73° | 53° | 63° | — | — |
| 2012 | 85° | 48° | 66° | — | — |
| 2011 | 56° | 41° | 48° | 0.03" | — |
| 2010 | 82° | 48° | 65° | — | — |
| 2009 | 66° | 49° | 57° | — | — |
| 2008 | 65° | 49° | 57° | — | — |
| 2007 | 62° | 56° | 59° | — | — |
| 2006 | 69° | 47° | 58° | — | — |
| 2005 | 67° | 47° | 57° | — | — |
| 2004 | 70° | 49° | 59° | — | — |
| 2003 | 86° | 49° | 67° | — | — |
| 2002 | 69° | 51° | 60° | — | — |
| 2001 | 59° | 37° | 48° | — | — |
| 2000 | 85° | 52° | 68° | — | — |
| 1999 | 57° | 42° | 50° | 0.1" | — |
| 1998 | 68° | 40° | 54° | — | — |
| 1983 | 70° | 35° | 52° | — | — |
| 1982 | 65° | 37° | 51° | — | — |
| 1981 | 68° | 51° | 60° | — | — |
| 1980 | 85° | 50° | 67° | — | — |
| 1979 | 68° | 44° | 56° | — | — |
| 1978 | 56° | 34° | 45° | 0.3" | — |
| 1977 | 74° | 48° | 61° | — | — |
| 1976 | 63° | 44° | 53° | 0.08" | — |
| 1975coldest | 48° | 35° | 42° | 0.38" | — |
| 1974 | 82° | 52° | 67° | — | — |
| 1973 | 77° | 45° | 61° | — | — |
| 1972 | 76° | 45° | 60° | — | — |
| 1971 | 69° | 40° | 54° | — | — |
42 years of data from ONTARIO INTL AP