Weather on June 18
Santa Clara, CA
55 Years of Data
Avg High
81°F
Avg Low
56°F
Warmest
2017
86°F avg
Coldest
1975
60°F avg
About This Date
June 18th in Santa Clara, CA typically brings warm summer weather, with average highs around 81°F and lows near 56°F — a 25°F daily swing. Over 55 years of records, the warmest June 18th was in 2017 (86°F average), while the coldest was 1975 (60°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 4% of June 18th dates historically. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for June 18th in Santa Clara, 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 | 83° | 54° | 68° | — | — |
| 2024 | 89° | 56° | 72° | — | — |
| 2023 | 75° | 56° | 65° | — | — |
| 2022 | 73° | 52° | 62° | — | — |
| 2021 | 93° | 62° | 78° | — | — |
| 2020 | 93° | 59° | 76° | — | — |
| 2019 | 80° | 58° | 69° | — | — |
| 2018 | 79° | 58° | 68° | — | — |
| 2017warmest | 103° | 70° | 86° | — | — |
| 2016 | 77° | 58° | 67° | — | — |
| 2015 | 75° | 53° | 64° | — | — |
| 2014 | 88° | 53° | 70° | — | — |
| 2013 | 71° | 55° | 63° | — | — |
| 2012 | 78° | 56° | 67° | — | — |
| 2011 | 80° | 53° | 67° | — | — |
| 2010 | 71° | 51° | 61° | — | — |
| 2009 | 85° | 57° | 71° | — | — |
| 2008 | 89° | 57° | 73° | — | — |
| 2007 | 86° | 55° | 71° | — | — |
| 2006 | 78° | 55° | 67° | — | — |
| 2005 | 73° | 56° | 64° | — | — |
| 2004 | 79° | 59° | 69° | — | — |
| 2003 | 74° | 55° | 64° | — | — |
| 2002 | 76° | 59° | 67° | — | — |
| 2001 | 90° | 58° | 74° | — | — |
| 2000 | 79° | 60° | 69° | — | — |
| 1999 | 74° | 53° | 63° | — | — |
| 1998 | 85° | 58° | 71° | — | — |
| 1997 | 82° | 59° | 71° | — | — |
| 1996 | 84° | 55° | 70° | — | — |
| 1995 | 69° | 53° | 61° | 0.03" | — |
| 1994 | 82° | 50° | 66° | — | — |
| 1993 | 98° | 65° | 81° | — | — |
| 1992 | 76° | 55° | 65° | — | — |
| 1991 | 68° | 53° | 61° | — | — |
| 1990 | 76° | 56° | 66° | — | — |
| 1989 | 82° | 55° | 69° | — | — |
| 1988 | 94° | 58° | 76° | — | — |
| 1987 | 76° | 51° | 63° | — | — |
| 1986 | 77° | 57° | 67° | — | — |
| 1985 | 83° | 61° | 72° | — | — |
| 1984 | 83° | 52° | 67° | — | — |
| 1983 | 75° | 54° | 64° | — | — |
| 1982 | 76° | 57° | 66° | — | — |
| 1981 | 92° | 61° | 76° | — | — |
| 1980 | 80° | 54° | 67° | — | — |
| 1979 | 78° | 50° | 64° | — | — |
| 1978 | 73° | 57° | 65° | — | — |
| 1977 | 69° | 56° | 62° | — | — |
| 1976 | 81° | 55° | 68° | — | — |
| 1975coldest | 73° | 47° | 60° | — | — |
| 1974 | 74° | 55° | 64° | 0.18" | — |
| 1973 | 84° | 50° | 67° | — | — |
| 1972 | 85° | 52° | 68° | — | — |
| 1971 | 86° | 55° | 71° | — | — |
55 years of data from SANTA CLARA UNIV