Weather on June 27
Ontario, CA
55 Years of Data
Avg High
92°F
Avg Low
61°F
Warmest
2022
86°F avg
Coldest
1972
67°F avg
About This Date
June 27th in Ontario, CA typically brings hot summer weather, with average highs around 92°F and lows near 61°F — a 31°F daily swing. Over 42 years of records, the warmest June 27th was in 2022 (86°F average), while the coldest was 1972 (67°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 27th dates historically. The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
Planning for June 27th in Ontario, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 60° | 76° | — | — |
| 2024 | 90° | 64° | 77° | — | — |
| 2023 | 84° | 57° | 71° | — | — |
| 2022warmest | 103° | 69° | 86° | — | — |
| 2021 | 100° | 63° | 81° | — | — |
| 2020 | 90° | 63° | 76° | — | — |
| 2019 | 90° | 63° | 76° | — | — |
| 2018 | 91° | 61° | 76° | — | — |
| 2017 | 99° | 68° | 83° | — | — |
| 2016 | 101° | 68° | 84° | — | — |
| 2015 | 89° | 64° | 77° | — | — |
| 2014 | 85° | 64° | 74° | — | — |
| 2013 | 100° | 69° | 85° | — | — |
| 2012 | 93° | 61° | 77° | — | — |
| 2011 | 94° | 61° | 77° | — | — |
| 2010 | 86° | 58° | 72° | — | — |
| 2009 | 95° | 61° | 78° | — | — |
| 2008 | 87° | 60° | 74° | — | — |
| 2007 | 91° | 61° | 76° | — | — |
| 2006 | 94° | 72° | 83° | — | — |
| 2005 | 85° | 55° | 70° | — | — |
| 2004 | 84° | 58° | 71° | — | — |
| 2003 | 91° | 61° | 76° | — | — |
| 2002 | 86° | 56° | 71° | — | — |
| 2001 | 89° | 60° | 75° | — | — |
| 2000 | 95° | 67° | 81° | — | — |
| 1999 | 89° | 58° | 73° | — | — |
| 1998 | 88° | 60° | 74° | — | — |
| 1984 | 103° | 58° | 80° | — | — |
| 1983 | 76° | 59° | 67° | — | — |
| 1982 | 89° | 56° | 72° | — | — |
| 1981 | 95° | 60° | 78° | — | — |
| 1980 | 102° | 62° | 82° | — | — |
| 1979 | 104° | 63° | 83° | — | — |
| 1978 | 78° | 58° | 68° | 0.05" | — |
| 1977 | 89° | 57° | 73° | — | — |
| 1976 | 105° | 65° | 85° | — | — |
| 1975 | 88° | 53° | 70° | — | — |
| 1974 | 102° | 62° | 82° | — | — |
| 1973 | 89° | 57° | 73° | — | — |
| 1972coldest | 88° | 47° | 67° | — | — |
| 1971 | 81° | 58° | 69° | — | — |
42 years of data from ONTARIO INTL AP