Weather on October 18
San Bernardino, CA
55 Years of Data
Avg High
81°F
Avg Low
54°F
Warmest
2003
78°F avg
Coldest
2005
58°F avg
About This Date
October 18th in San Bernardino, CA typically brings warm fall weather, with average highs around 81°F and lows near 54°F — a 27°F daily swing. Over 48 years of records, the warmest October 18th was in 2003 (78°F average), while the coldest was 2005 (58°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 8% of October 18th dates historically, with the wettest October 18th recording 3.23" of rain.
Planning for October 18th in San Bernardino, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 54° | 70° | — | — |
| 2017 | 88° | 65° | 76° | — | — |
| 2016 | 76° | 57° | 66° | — | — |
| 2015 | 74° | 62° | 68° | — | — |
| 2014 | 76° | 60° | 68° | — | — |
| 2013 | 85° | 51° | 68° | — | — |
| 2012 | 81° | 62° | 71° | — | — |
| 2011 | 91° | 56° | 73° | — | — |
| 2010 | 66° | 56° | 61° | 0.28" | — |
| 2009 | 94° | 57° | 75° | — | — |
| 2008 | 88° | 53° | 70° | — | — |
| 2007 | 89° | 50° | 70° | — | — |
| 2006 | 83° | 51° | 67° | — | — |
| 2005coldest | 62° | 53° | 58° | 3.23" | — |
| 2004 | 67° | 56° | 61° | 0.05" | — |
| 2003warmest | 100° | 55° | 78° | — | — |
| 2002 | 69° | 56° | 62° | — | — |
| 2001 | 88° | 53° | 70° | — | — |
| 2000 | 90° | 46° | 68° | — | — |
| 1999 | 88° | 48° | 68° | — | — |
| 1998 | 83° | 45° | 64° | — | — |
| 1997 | 89° | 54° | 71° | — | — |
| 1996 | 82° | 52° | 67° | — | — |
| 1995 | 83° | 53° | 68° | — | — |
| 1994 | 76° | 47° | 61° | — | — |
| 1993 | 76° | 52° | 64° | — | — |
| 1992 | 79° | 54° | 66° | — | — |
| 1991 | 93° | 56° | 74° | — | — |
| 1990 | 80° | 56° | 68° | — | — |
| 1989 | 92° | 53° | 72° | — | — |
| 1988 | 83° | 55° | 69° | — | — |
| 1987 | 70° | 58° | 64° | — | — |
| 1986 | 68° | 50° | 59° | — | — |
| 1985 | 78° | 56° | 67° | — | — |
| 1984 | 75° | 45° | 60° | — | — |
| 1983 | 81° | 53° | 67° | — | — |
| 1982 | 85° | 47° | 66° | — | — |
| 1981 | 89° | 52° | 70° | — | — |
| 1980 | 83° | 46° | 64° | — | — |
| 1979 | 70° | 58° | 64° | — | — |
| 1978 | 90° | 50° | 70° | — | — |
| 1977 | 83° | 52° | 67° | — | — |
| 1976 | 77° | 62° | 70° | — | — |
| 1975 | 78° | 48° | 63° | — | — |
| 1974 | 92° | 56° | 74° | — | — |
| 1973 | 94° | 57° | 75° | — | — |
| 1972 | 68° | 55° | 62° | — | — |
| 1971 | 69° | 48° | 59° | 0.05" | — |
48 years of data from NORTON AFB