Weather on June 30
Downey, CA
55 Years of Data
Avg High
86°F
Avg Low
61°F
Warmest
1985
82°F avg
Coldest
2010
66°F avg
About This Date
June 30th in Downey, CA typically brings warm summer weather, with average highs around 86°F and lows near 61°F — a 25°F daily swing. Over 55 years of records, the warmest June 30th was in 1985 (82°F average), while the coldest was 2010 (66°F) — a 16°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for June 30th in Downey, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 58° | 73° | — | — |
| 2024 | 91° | 58° | 74° | — | — |
| 2023 | 90° | 56° | 73° | — | — |
| 2022 | 89° | 61° | 75° | — | — |
| 2021 | 85° | 59° | 72° | — | — |
| 2020 | 84° | 57° | 71° | — | — |
| 2019 | 90° | 60° | 75° | — | — |
| 2018 | 79° | 59° | 69° | — | — |
| 2017 | 81° | 59° | 70° | — | — |
| 2016 | 76° | 67° | 71° | — | — |
| 2015 | 93° | 64° | 79° | — | — |
| 2014 | 82° | 60° | 71° | — | — |
| 2013 | 97° | 64° | 80° | — | — |
| 2012 | 86° | 55° | 71° | — | — |
| 2011 | 91° | 54° | 72° | — | — |
| 2010coldest | 83° | 49° | 66° | — | — |
| 2009 | 83° | 58° | 70° | — | — |
| 2008 | 90° | 60° | 75° | — | — |
| 2007 | 88° | 59° | 73° | — | — |
| 2006 | 94° | 67° | 80° | — | — |
| 2005 | 83° | 58° | 70° | — | — |
| 2004 | 79° | 62° | 70° | — | — |
| 2003 | 90° | 58° | 74° | — | — |
| 2002 | 82° | 59° | 71° | — | — |
| 2001 | 90° | 63° | 76° | — | — |
| 2000 | 84° | 60° | 72° | — | — |
| 1999 | 86° | 62° | 74° | — | — |
| 1998 | 88° | 62° | 75° | — | — |
| 1997 | 84° | 62° | 73° | — | — |
| 1996 | 102° | 60° | 81° | — | — |
| 1995 | 85° | 61° | 73° | — | — |
| 1994 | 86° | 68° | 77° | — | — |
| 1993 | 90° | 62° | 76° | — | — |
| 1992 | 81° | 60° | 70° | — | — |
| 1991 | 86° | 58° | 72° | — | — |
| 1990 | 92° | 64° | 78° | — | — |
| 1989 | 84° | 58° | 71° | — | — |
| 1988 | 86° | 64° | 75° | — | — |
| 1987 | 80° | 60° | 70° | — | — |
| 1986 | 94° | 68° | 81° | — | — |
| 1985warmest | 100° | 64° | 82° | — | — |
| 1984 | 88° | 66° | 77° | — | — |
| 1983 | 75° | 64° | 70° | — | — |
| 1982 | 76° | 60° | 68° | — | — |
| 1981 | 89° | 58° | 73° | — | — |
| 1980 | 86° | 67° | 76° | — | — |
| 1979 | 95° | 63° | 79° | — | — |
| 1978 | 78° | 61° | 69° | — | — |
| 1977 | 82° | 65° | 73° | — | — |
| 1976 | 88° | 64° | 76° | — | — |
| 1975 | 84° | 59° | 72° | — | — |
| 1974 | 74° | 63° | 68° | — | — |
| 1973 | 83° | 65° | 74° | — | — |
| 1972 | 71° | 62° | 67° | — | — |
| 1971 | 77° | 57° | 67° | — | — |
55 years of data from MONTEBELLO