Weather on May 20
Modesto, CA
55 Years of Data
Avg High
82°F
Avg Low
54°F
Warmest
2001
83°F avg
Coldest
1998
58°F avg
About This Date
May 20th in Modesto, CA typically brings warm spring weather, with average highs around 82°F and lows near 54°F — a 28°F daily swing. Over 55 years of records, the warmest May 20th was in 2001 (83°F average), while the coldest was 1998 (58°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 20th dates historically. The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for May 20th in Modesto, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 60° | 74° | — | — |
| 2024 | 82° | 50° | 66° | — | — |
| 2023 | 84° | 56° | 70° | — | — |
| 2022 | 81° | 57° | 69° | — | — |
| 2021 | 71° | 48° | 60° | — | — |
| 2020 | 78° | 49° | 63° | — | — |
| 2019 | 74° | 46° | 60° | — | — |
| 2018 | 76° | 52° | 64° | — | — |
| 2017 | 96° | 58° | 77° | — | — |
| 2016 | 72° | 54° | 63° | — | — |
| 2015 | 80° | 53° | 67° | — | — |
| 2014 | 74° | 50° | 62° | — | — |
| 2013 | 90° | 60° | 75° | — | — |
| 2012 | 94° | 59° | 76° | — | — |
| 2011 | 84° | 50° | 67° | — | — |
| 2010 | 77° | 50° | 64° | — | — |
| 2009 | 87° | 58° | 72° | — | — |
| 2008 | 91° | 62° | 77° | — | — |
| 2007 | 86° | 57° | 72° | — | — |
| 2006 | 84° | 55° | 70° | — | — |
| 2005 | 77° | 60° | 69° | — | — |
| 2004 | 78° | 51° | 65° | — | — |
| 2003 | 92° | 54° | 73° | — | — |
| 2002 | 68° | 49° | 58° | 0.28" | — |
| 2001warmest | 99° | 67° | 83° | — | — |
| 2000 | 94° | 60° | 77° | — | — |
| 1999 | 71° | 48° | 60° | — | — |
| 1998coldest | 70° | 47° | 58° | — | — |
| 1997 | 88° | 60° | 74° | — | — |
| 1996 | 77° | 53° | 65° | — | — |
| 1995 | 82° | 55° | 69° | — | — |
| 1994 | 75° | 49° | 62° | — | — |
| 1993 | 79° | 63° | 71° | — | — |
| 1992 | 78° | 55° | 67° | — | — |
| 1991 | 77° | 50° | 64° | — | — |
| 1990 | 73° | 57° | 65° | — | — |
| 1989 | 82° | 51° | 67° | — | — |
| 1988 | 96° | 58° | 77° | — | — |
| 1987 | 76° | 54° | 65° | — | — |
| 1986 | 80° | 55° | 68° | — | — |
| 1985 | 87° | 54° | 70° | — | — |
| 1984 | 89° | 59° | 74° | — | — |
| 1983 | 95° | 59° | 77° | — | — |
| 1982 | 92° | 53° | 72° | — | — |
| 1981 | 77° | 45° | 61° | — | — |
| 1980 | 95° | 63° | 79° | — | — |
| 1979 | 86° | 56° | 71° | — | — |
| 1978 | 94° | 64° | 79° | — | — |
| 1977 | 85° | 50° | 67° | — | — |
| 1976 | 83° | 50° | 66° | — | — |
| 1975 | 71° | 50° | 61° | — | — |
| 1974 | 75° | 42° | 59° | — | — |
| 1973 | 78° | 52° | 65° | — | — |
| 1972 | 67° | 52° | 59° | 0.03" | — |
| 1971 | 79° | 48° | 63° | — | — |
55 years of data from MODESTO AP