Weather on May 9
El Monte, CA
55 Years of Data
Avg High
77°F
Avg Low
54°F
Warmest
2025
77°F avg
Coldest
1977
55°F avg
About This Date
May 9th in El Monte, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 54°F. Over 55 years of records, the warmest May 9th was in 2025 (77°F average), while the coldest was 1977 (55°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 9th dates historically, with the wettest May 9th recording 2.72" of rain. The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
Planning for May 9th in El Monte, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 93° | 61° | 77° | — | — |
| 2024 | 77° | 53° | 65° | — | — |
| 2023 | 66° | 50° | 58° | — | — |
| 2022 | 67° | 48° | 57° | — | — |
| 2021 | 72° | 55° | 63° | — | — |
| 2020 | 80° | 58° | 69° | — | — |
| 2019 | 67° | 54° | 60° | — | — |
| 2018 | 78° | 55° | 67° | — | — |
| 2017 | 74° | 50° | 62° | — | — |
| 2016 | 68° | 51° | 60° | — | — |
| 2015 | 66° | 51° | 59° | — | — |
| 2014 | 73° | 55° | 64° | — | — |
| 2013 | 74° | 53° | 63° | 0.41" | — |
| 2012 | 84° | 57° | 71° | — | — |
| 2011 | 71° | 49° | 60° | — | — |
| 2010 | 69° | 56° | 62° | — | — |
| 2009 | 77° | 59° | 68° | — | — |
| 2008 | 64° | 53° | 59° | — | — |
| 2007 | 88° | — | — | — | — |
| 2006 | 69° | 58° | 63° | — | — |
| 2005 | 67° | 55° | 61° | — | — |
| 2004 | 91° | 55° | 73° | — | — |
| 2003 | 74° | 47° | 60° | — | — |
| 2002 | 76° | 49° | 62° | — | — |
| 2001 | 88° | 58° | 73° | — | — |
| 2000 | 80° | 54° | 67° | — | — |
| 1999 | 61° | 55° | 58° | — | — |
| 1998 | 69° | 56° | 62° | — | — |
| 1997 | 88° | 60° | 74° | — | — |
| 1996 | 80° | 54° | 67° | — | — |
| 1995 | 77° | 46° | 62° | — | — |
| 1994 | 76° | 50° | 63° | — | — |
| 1993 | 98° | 53° | 76° | — | — |
| 1992 | 79° | 61° | 70° | — | — |
| 1991 | 75° | 58° | 66° | — | — |
| 1990 | 80° | 58° | 69° | — | — |
| 1989 | 77° | 60° | 69° | — | — |
| 1988 | 80° | 48° | 64° | — | — |
| 1987 | 82° | 60° | 71° | — | — |
| 1986 | 85° | 51° | 68° | — | — |
| 1985 | 69° | 54° | 61° | 0.58" | — |
| 1984 | 93° | 56° | 74° | — | — |
| 1983 | 76° | 53° | 64° | — | — |
| 1982 | 64° | 54° | 59° | — | — |
| 1981 | 94° | 54° | 74° | — | — |
| 1980 | 70° | 57° | 63° | — | — |
| 1979 | 73° | 45° | 59° | — | — |
| 1978 | 87° | 55° | 71° | — | — |
| 1977coldest | 59° | 50° | 55° | 2.72" | — |
| 1976 | 79° | 52° | 65° | — | — |
| 1975 | 82° | 51° | 67° | — | — |
| 1974 | 73° | 57° | 65° | — | — |
| 1973 | 85° | 52° | 68° | — | — |
| 1972 | 72° | 48° | 60° | — | — |
| 1971 | 74° | 46° | 60° | — | — |
55 years of data from SAN GABRIEL FIRE DEPT