Weather on May 12
Fontana, CA
55 Years of Data
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 56 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 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°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 |
|---|---|---|---|---|---|
| 2026 | 74° | 57° | 65° | — | — |
| 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° | — | — |
Fontana, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Fontana, CA Monthly Precipitation
Average rainfall per month, in inches.
Fontana, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Fontana, CA
Fontana, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.