Weather on May 18
Downey, CA
55 Years of Data
Avg High
77°F
Avg Low
56°F
Warmest
2008
84°F avg
Coldest
1994
58°F avg
About This Date
May 18th in Downey, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 56°F. Over 55 years of records, the warmest May 18th was in 2008 (84°F average), while the coldest was 1994 (58°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 18th dates historically. The last decade has been 5.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.0°F cooler on this date compared to 20-30 years ago.
Planning for May 18th in Downey, CA? Great weather for outdoor activities.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 53° | 62° | — | — |
| 2024 | 74° | 54° | 64° | — | — |
| 2023 | 78° | 54° | 66° | — | — |
| 2022 | 77° | 55° | 66° | — | — |
| 2021 | 75° | 55° | 65° | — | — |
| 2020 | 71° | 54° | 62° | — | — |
| 2019 | 76° | 51° | 63° | — | — |
| 2018 | 68° | 55° | 62° | — | — |
| 2017 | 77° | 51° | 64° | — | — |
| 2016 | 74° | 55° | 64° | — | — |
| 2015 | 68° | 51° | 60° | — | — |
| 2014 | 77° | 57° | 67° | — | — |
| 2013 | 76° | 55° | 65° | — | — |
| 2012 | 76° | 53° | 64° | — | — |
| 2011 | 70° | 48° | 59° | — | — |
| 2010 | 72° | 55° | 63° | — | — |
| 2009 | 88° | 62° | 75° | — | — |
| 2008warmest | 98° | 69° | 84° | — | — |
| 2007 | 74° | 53° | 63° | — | — |
| 2006 | 83° | 61° | 72° | — | — |
| 2005 | 82° | 54° | 68° | — | — |
| 2004 | 76° | 62° | 69° | — | — |
| 2003 | 79° | 58° | 68° | — | — |
| 2002 | 72° | 55° | 63° | — | — |
| 2001 | 81° | 61° | 71° | — | — |
| 2000 | 84° | 55° | 70° | — | — |
| 1999 | 85° | 55° | 70° | — | — |
| 1998 | 82° | 52° | 67° | — | — |
| 1997 | 80° | 66° | 73° | — | — |
| 1996 | 79° | 59° | 69° | — | — |
| 1995 | 78° | 57° | 68° | — | — |
| 1994coldest | 64° | 51° | 58° | 0.1" | — |
| 1993 | 79° | 57° | 68° | — | — |
| 1992 | 77° | 61° | 69° | — | — |
| 1991 | 72° | 52° | 62° | — | — |
| 1990 | 76° | 58° | 67° | — | — |
| 1989 | 74° | 58° | 66° | — | — |
| 1988 | 76° | 55° | 65° | — | — |
| 1987 | 72° | 60° | 66° | — | — |
| 1986 | 90° | 58° | 74° | — | — |
| 1985 | 76° | 52° | 64° | — | — |
| 1984 | 85° | 54° | 69° | — | — |
| 1983 | 90° | 58° | 74° | — | — |
| 1982 | 60° | 88° | 74° | — | — |
| 1981 | 82° | 54° | 68° | — | — |
| 1980 | 81° | 52° | 66° | — | — |
| 1979 | 77° | 52° | 64° | — | — |
| 1978 | 92° | 57° | 74° | — | — |
| 1977 | 76° | 51° | 63° | — | — |
| 1976 | 79° | 58° | 68° | — | — |
| 1975 | 73° | 58° | 65° | — | — |
| 1974 | 69° | 49° | 59° | — | — |
| 1973 | 71° | 58° | 64° | — | — |
| 1972 | 65° | 56° | 60° | — | — |
| 1971 | 90° | 54° | 72° | — | — |
55 years of data from MONTEBELLO