Weather on May 12
Fontana, CA
55 Years of Data
Avg High
82°F
Avg Low
54°F
Warmest
2013
84°F avg
Coldest
1977
54°F avg
About This Date
May 12th in Fontana, CA typically brings warm spring weather, with average highs around 82°F and lows near 54°F — a 28°F daily swing. Over 55 years of records, the warmest May 12th was in 2013 (84°F average), while the coldest was 1977 (54°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 12th dates historically, with the wettest May 12th recording 2.08" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for May 12th in Fontana, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 57° | 66° | — | — |
| 2024 | 82° | 54° | 68° | — | — |
| 2023 | 80° | 52° | 66° | — | — |
| 2022 | 84° | 48° | 66° | — | — |
| 2021 | 85° | 56° | 70° | — | — |
| 2020 | 75° | 57° | 66° | — | — |
| 2019 | 84° | 58° | 71° | — | — |
| 2018 | 65° | 55° | 60° | — | — |
| 2017 | 80° | 54° | 67° | — | — |
| 2016 | 91° | 57° | 74° | — | — |
| 2015 | 77° | 53° | 65° | — | — |
| 2014 | 91° | 53° | 72° | — | — |
| 2013warmest | 103° | 65° | 84° | — | — |
| 2012 | 84° | 56° | 70° | — | — |
| 2011 | 86° | 54° | 70° | — | — |
| 2010 | 80° | 48° | 64° | — | — |
| 2009 | 79° | 57° | 68° | — | — |
| 2008 | 63° | 54° | 58° | — | — |
| 2007 | 79° | 50° | 64° | — | — |
| 2006 | 82° | 59° | 71° | — | — |
| 2005 | 86° | 54° | 70° | — | — |
| 2004 | 79° | 56° | 67° | — | — |
| 2003 | 85° | 54° | 69° | — | — |
| 2002 | 94° | 51° | 72° | — | — |
| 2001 | 75° | 58° | 66° | — | — |
| 2000 | 85° | 47° | 66° | — | — |
| 1999 | 84° | 53° | 69° | — | — |
| 1998 | 64° | 47° | 55° | 2.08" | — |
| 1997 | 88° | 62° | 75° | — | — |
| 1996 | 99° | 60° | 79° | — | — |
| 1995 | 71° | 55° | 63° | — | — |
| 1994 | 74° | 58° | 66° | — | — |
| 1993 | 73° | 56° | 64° | — | — |
| 1992 | 84° | 61° | 72° | — | — |
| 1991 | 79° | 47° | 63° | — | — |
| 1990 | 77° | 55° | 66° | — | — |
| 1989 | 72° | 52° | 62° | — | — |
| 1988 | 98° | 60° | 79° | — | — |
| 1987 | 97° | 62° | 79° | — | — |
| 1986 | 78° | 51° | 65° | — | — |
| 1985 | 75° | 52° | 63° | — | — |
| 1984 | 98° | 52° | 75° | — | — |
| 1983 | 75° | 41° | 58° | — | — |
| 1982 | 71° | 40° | 55° | — | — |
| 1981 | 80° | 56° | 68° | — | — |
| 1980 | 64° | 46° | 55° | — | — |
| 1979 | 95° | 51° | 73° | — | — |
| 1978 | 99° | 50° | 74° | — | — |
| 1977coldest | 57° | 50° | 54° | 0.05" | — |
| 1976 | 102° | 60° | 81° | — | — |
| 1975 | 88° | 57° | 72° | — | — |
| 1974 | 83° | 54° | 68° | — | — |
| 1973 | 77° | 57° | 67° | — | — |
| 1972 | 96° | 62° | 79° | — | — |
| 1971 | 78° | 56° | 67° | — | — |
55 years of data from FONTANA KAISER