Weather on October 15
Fontana, CA
55 Years of Data
Avg High
82°F
Avg Low
56°F
Warmest
2020
83°F avg
Coldest
1981
55°F avg
About This Date
October 15th in Fontana, CA typically brings warm fall weather, with average highs around 82°F and lows near 56°F — a 26°F daily swing. Over 55 years of records, the warmest October 15th was in 2020 (83°F average), while the coldest was 1981 (55°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 4% of October 15th dates historically, with the wettest October 15th recording 0.76" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for October 15th in Fontana, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 54° | 61° | — | — |
| 2024 | 74° | 60° | 67° | — | — |
| 2023 | 95° | 59° | 77° | — | — |
| 2022 | 69° | 60° | 65° | 0.76" | — |
| 2021 | 91° | 61° | 76° | — | — |
| 2020warmest | 100° | 66° | 83° | — | — |
| 2019 | 91° | 55° | 73° | — | — |
| 2018 | 76° | 59° | 67° | — | — |
| 2017 | 96° | 50° | 73° | — | — |
| 2016 | 79° | 54° | 66° | — | — |
| 2015 | 83° | 68° | 75° | — | — |
| 2014 | 78° | 62° | 70° | — | — |
| 2013 | 87° | 53° | 70° | — | — |
| 2012 | 95° | 59° | 77° | — | — |
| 2011 | 82° | 58° | 70° | — | — |
| 2010 | 75° | 61° | 68° | — | — |
| 2009 | 87° | 60° | 74° | — | — |
| 2008 | 93° | 57° | 75° | — | — |
| 2007 | 62° | 55° | 59° | 0.03" | — |
| 2006 | 67° | 58° | 62° | — | — |
| 2005 | 78° | 57° | 68° | — | — |
| 2004 | 84° | 56° | 70° | — | — |
| 2003 | 83° | 57° | 70° | — | — |
| 2002 | 69° | 56° | 62° | — | — |
| 2001 | 93° | 54° | 73° | — | — |
| 2000 | 79° | 50° | 64° | — | — |
| 1999 | 77° | 56° | 66° | — | — |
| 1998 | 71° | 53° | 62° | — | — |
| 1997 | 97° | 58° | 77° | — | — |
| 1996 | 84° | 55° | 70° | — | — |
| 1995 | 83° | 57° | 70° | — | — |
| 1994 | 74° | 57° | 65° | — | — |
| 1993 | 79° | 58° | 68° | — | — |
| 1992 | 76° | 59° | 67° | — | — |
| 1991 | 95° | 58° | 76° | — | — |
| 1990 | 79° | 56° | 67° | — | — |
| 1989 | 74° | 57° | 65° | — | — |
| 1988 | 97° | 51° | 74° | — | — |
| 1987 | 74° | 56° | 65° | — | — |
| 1986 | 85° | 47° | 66° | — | — |
| 1985 | 88° | 52° | 70° | — | — |
| 1984 | 78° | 55° | 67° | — | — |
| 1983 | 73° | 55° | 64° | — | — |
| 1982 | 89° | 53° | 71° | — | — |
| 1981coldest | 68° | 43° | 55° | — | — |
| 1980 | 68° | 46° | 57° | — | — |
| 1979 | 79° | 47° | 63° | — | — |
| 1978 | 95° | 50° | 73° | — | — |
| 1977 | 94° | 57° | 75° | — | — |
| 1976 | 82° | 59° | 71° | — | — |
| 1975 | 88° | 68° | 78° | — | — |
| 1974 | 98° | 62° | 80° | — | — |
| 1973 | 94° | 50° | 72° | — | — |
| 1972 | 80° | 54° | 67° | — | — |
| 1971 | 72° | 59° | 65° | — | — |
55 years of data from FONTANA KAISER