Weather on May 26
Fontana, CA
55 Years of Data
Avg High
79°F
Avg Low
55°F
Warmest
1974
83°F avg
Coldest
1980
54°F avg
About This Date
May 26th in Fontana, CA typically brings pleasant spring weather, with average highs around 79°F and lows near 55°F. Over 55 years of records, the warmest May 26th was in 1974 (83°F average), while the coldest was 1980 (54°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 26th dates historically. The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
Planning for May 26th in Fontana, CA? Great weather for outdoor activities.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 57° | 68° | — | — |
| 2024 | 74° | 54° | 64° | — | — |
| 2023 | 68° | 56° | 62° | — | — |
| 2022 | 86° | 56° | 71° | — | — |
| 2021 | 87° | 58° | 72° | — | — |
| 2020 | 95° | 63° | 79° | — | — |
| 2019 | 63° | 54° | 58° | 0.18" | — |
| 2018 | 67° | 54° | 60° | — | — |
| 2017 | 74° | 57° | 65° | — | — |
| 2016 | 76° | 51° | 63° | — | — |
| 2015 | 77° | 58° | 67° | — | — |
| 2014 | 91° | 59° | 75° | — | — |
| 2013 | 77° | 55° | 66° | — | — |
| 2012 | 67° | 49° | 58° | — | — |
| 2011 | 76° | 52° | 64° | — | — |
| 2010 | 74° | 50° | 62° | — | — |
| 2009 | 79° | 57° | 68° | — | — |
| 2008 | 64° | 50° | 57° | — | — |
| 2007 | 84° | 56° | 70° | — | — |
| 2006 | 70° | 59° | 64° | — | — |
| 2005 | 86° | 56° | 71° | — | — |
| 2004 | 73° | 56° | 64° | — | — |
| 2003 | 82° | 54° | 68° | — | — |
| 2002 | 75° | 56° | 65° | — | — |
| 2001 | 74° | 60° | 67° | — | — |
| 2000 | 81° | 58° | 69° | — | — |
| 1999 | 84° | 54° | 69° | — | — |
| 1998 | 66° | 52° | 59° | — | — |
| 1997 | 90° | 58° | 74° | — | — |
| 1996 | 80° | 51° | 66° | — | — |
| 1995 | 79° | 49° | 64° | — | — |
| 1994 | 74° | 59° | 66° | — | — |
| 1993 | 82° | 62° | 72° | — | — |
| 1992 | 82° | 61° | 71° | — | — |
| 1991 | 79° | 53° | 66° | — | — |
| 1990 | 80° | 55° | 68° | — | — |
| 1989 | 88° | 53° | 70° | — | — |
| 1988 | 86° | 55° | 71° | — | — |
| 1987 | 71° | 52° | 61° | — | — |
| 1986 | 87° | 54° | 70° | — | — |
| 1985 | 77° | 56° | 66° | — | — |
| 1984 | 97° | 54° | 75° | — | — |
| 1983 | 88° | 58° | 73° | — | — |
| 1982 | 76° | 58° | 67° | — | — |
| 1981 | 79° | 60° | 69° | — | — |
| 1980coldest | 70° | 39° | 54° | — | — |
| 1979 | 82° | 52° | 67° | — | — |
| 1978 | 76° | 43° | 59° | — | — |
| 1977 | 78° | 52° | 65° | — | — |
| 1976 | 90° | 52° | 71° | — | — |
| 1975 | 81° | 53° | 67° | — | — |
| 1974warmest | 101° | 65° | 83° | — | — |
| 1973 | 74° | 57° | 65° | — | — |
| 1972 | 83° | 53° | 68° | — | — |
| 1971 | 83° | 55° | 69° | — | — |
55 years of data from FONTANA KAISER