Weather on March 20
El Monte, CA
55 Years of Data
Avg High
74°F
Avg Low
49°F
Warmest
2026
80°F avg
Coldest
2011
48°F avg
About This Date
March 20th in El Monte, CA typically brings pleasant spring weather, with average highs around 74°F and lows near 49°F — a 25°F daily swing. Over 56 years of records, the warmest March 20th was in 2026 (80°F average), while the coldest was 2011 (48°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 16% of March 20th dates historically, with the wettest March 20th recording 3.25" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for March 20th in El Monte, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 91° | 70° | 80° | — | — |
| 2025 | 74° | 55° | 64° | — | — |
| 2024 | 71° | 53° | 62° | — | — |
| 2023 | 58° | 49° | 53° | — | — |
| 2022 | 70° | 50° | 60° | — | — |
| 2021 | 69° | 50° | 60° | — | — |
| 2020 | 65° | 47° | 56° | — | — |
| 2019 | 61° | 49° | 55° | — | — |
| 2018 | 76° | 56° | 66° | — | — |
| 2017 | 71° | 52° | 61° | — | — |
| 2016 | 72° | 53° | 62° | — | — |
| 2015 | 83° | — | — | — | — |
| 2014 | 75° | 52° | 63° | — | — |
| 2013 | 71° | 52° | 61° | — | — |
| 2012 | 71° | 42° | 57° | — | — |
| 2011coldest | 52° | 44° | 48° | — | — |
| 2010 | 85° | 51° | 68° | — | — |
| 2009 | 70° | 55° | 62° | — | — |
| 2008 | 69° | 48° | 59° | — | — |
| 2007 | 60° | 53° | 57° | 0.03" | — |
| 2006 | 69° | 45° | 57° | — | — |
| 2005 | 66° | 50° | 58° | 0.05" | — |
| 2004 | 81° | 55° | 68° | — | — |
| 2003 | 73° | 45° | 59° | — | — |
| 2002 | 82° | 50° | 66° | — | — |
| 2001 | 82° | 52° | 67° | — | — |
| 2000 | 73° | 53° | 63° | — | — |
| 1999 | 65° | 48° | 56° | 0.38" | — |
| 1998 | 73° | 48° | 61° | — | — |
| 1997 | 97° | 52° | 74° | — | — |
| 1996 | 83° | 52° | 67° | — | — |
| 1995 | 70° | 60° | 65° | — | — |
| 1994 | 72° | 56° | 64° | 0.08" | — |
| 1993 | 79° | 56° | 67° | — | — |
| 1992 | 69° | 51° | 60° | 2.79" | — |
| 1991 | 61° | 45° | 53° | 2.46" | — |
| 1990 | 92° | 56° | 74° | — | — |
| 1989 | 86° | 51° | 69° | — | — |
| 1988 | 90° | 48° | 69° | — | — |
| 1987 | 89° | 39° | 64° | — | — |
| 1986 | 86° | 45° | 65° | — | — |
| 1985 | 77° | 43° | 60° | — | — |
| 1984 | 88° | 49° | 68° | — | — |
| 1983 | 65° | 46° | 55° | — | — |
| 1982 | 70° | 38° | 54° | — | — |
| 1981 | 65° | 47° | 56° | 3.25" | — |
| 1980 | 73° | 44° | 59° | — | — |
| 1979 | 63° | 45° | 54° | 0.48" | — |
| 1978 | 70° | 50° | 60° | — | — |
| 1977 | 72° | 40° | 56° | — | — |
| 1976 | 81° | 42° | 61° | — | — |
| 1975 | 76° | 45° | 60° | — | — |
| 1974 | 62° | 53° | 58° | — | — |
| 1973 | 61° | 45° | 53° | 2.64" | — |
| 1972 | 71° | 55° | 63° | — | — |
| 1971 | 79° | 42° | 60° | — | — |
56 years of data from SAN GABRIEL FIRE DEPT