Weather on May 15
San Bernardino, CA
55 Years of Data
Avg High
79°F
Avg Low
55°F
Warmest
2014
80°F avg
Coldest
2015
51°F avg
About This Date
May 15th in San Bernardino, CA typically brings pleasant spring weather, with average highs around 79°F and lows near 55°F. Over 48 years of records, the warmest May 15th was in 2014 (80°F average), while the coldest was 2015 (51°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 10% of May 15th dates historically, with the wettest May 15th recording 1.19" of rain.
Planning for May 15th in San Bernardino, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 52° | 67° | — | — |
| 2017 | 58° | 49° | 53° | — | — |
| 2016 | 63° | 54° | 58° | — | — |
| 2015coldest | 54° | 48° | 51° | 1.19" | — |
| 2014warmest | 99° | 61° | 80° | — | — |
| 2013 | 84° | 53° | 69° | — | — |
| 2012 | 87° | 50° | 69° | — | — |
| 2011 | 70° | 52° | 61° | 0.25" | — |
| 2010 | 87° | 50° | 69° | — | — |
| 2009 | 91° | 55° | 73° | — | — |
| 2008 | 99° | 57° | 78° | — | — |
| 2007 | 80° | 52° | 66° | — | — |
| 2006 | 86° | 59° | 73° | — | — |
| 2005 | 92° | 56° | 74° | — | — |
| 2004 | 88° | 56° | 72° | — | — |
| 2003 | 76° | 56° | 66° | — | — |
| 2002 | 79° | 53° | 66° | — | — |
| 2001 | 83° | 53° | 68° | — | — |
| 2000 | 82° | 52° | 67° | — | — |
| 1999 | 71° | 55° | 63° | — | — |
| 1998 | 74° | — | — | — | — |
| 1997 | 95° | 60° | 78° | — | — |
| 1996 | 82° | 65° | 73° | — | — |
| 1995 | 69° | 49° | 59° | 0.1" | — |
| 1994 | 66° | 58° | 62° | — | — |
| 1993 | 91° | 62° | 77° | — | — |
| 1992 | 77° | 59° | 68° | — | — |
| 1991 | 85° | 49° | 67° | — | — |
| 1990 | 71° | 55° | 63° | — | — |
| 1989 | 57° | 54° | 55° | 1.04" | — |
| 1988 | 87° | 56° | 71° | — | — |
| 1987 | 79° | 62° | 70° | — | — |
| 1986 | 71° | 55° | 63° | — | — |
| 1985 | 86° | 53° | 70° | — | — |
| 1984 | 76° | 53° | 64° | — | — |
| 1983 | 83° | 54° | 68° | — | — |
| 1982 | 82° | 53° | 68° | — | — |
| 1981 | 66° | 55° | 61° | 0.18" | — |
| 1980 | 68° | 53° | 61° | — | — |
| 1979 | 88° | 51° | 69° | — | — |
| 1978 | 83° | 57° | 70° | — | — |
| 1977 | 64° | 54° | 59° | — | — |
| 1976 | 89° | 57° | 73° | — | — |
| 1975 | 76° | 54° | 65° | — | — |
| 1974 | 64° | 55° | 60° | — | — |
| 1973 | 83° | 53° | 68° | — | — |
| 1972 | 93° | 53° | 73° | — | — |
| 1971 | 82° | 53° | 68° | — | — |
48 years of data from NORTON AFB