Weather on May 15
San Bernardino, CA
55 Years of Data
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 49 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 |
|---|---|---|---|---|---|
| 2026 | 79° | 57° | 68° | — | — |
| 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° | — | — |
San Bernardino, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Bernardino, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
San Bernardino, 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 San Bernardino, CA
San Bernardino, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.