Weather on September 1
Modesto, CA
55 Years of Data
Avg High
93°F
Avg Low
61°F
Warmest
2007
90°F avg
Coldest
1975
67°F avg
About This Date
September 1st in Modesto, CA typically brings hot fall weather, with average highs around 93°F and lows near 61°F — a 32°F daily swing. Over 55 years of records, the warmest September 1st was in 2007 (90°F average), while the coldest was 1975 (67°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 1st dates historically. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 1st in Modesto, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 101° | 67° | 84° | — | — |
| 2024 | 94° | 63° | 78° | — | — |
| 2023 | 80° | 61° | 70° | — | — |
| 2022 | 101° | 64° | 82° | — | — |
| 2021 | 85° | 57° | 71° | — | — |
| 2020 | 88° | 64° | 76° | — | — |
| 2019 | 99° | 61° | 80° | — | — |
| 2018 | 91° | 62° | 77° | — | — |
| 2017 | 104° | 74° | 89° | — | — |
| 2016 | 91° | 61° | 76° | — | — |
| 2015 | 95° | 62° | 79° | — | — |
| 2014 | 97° | 63° | 80° | — | — |
| 2013 | 93° | 67° | 80° | — | — |
| 2012 | 83° | 55° | 69° | — | — |
| 2011 | 93° | 60° | 77° | — | — |
| 2010 | 94° | 58° | 76° | — | — |
| 2009 | 96° | 62° | 79° | — | — |
| 2008 | 88° | 62° | 75° | — | — |
| 2007warmest | 105° | 75° | 90° | — | — |
| 2006 | 98° | 65° | 81° | — | — |
| 2005 | 95° | 60° | 78° | — | — |
| 2004 | 94° | 62° | 78° | — | — |
| 2003 | 102° | 63° | 82° | — | — |
| 2002 | 101° | 63° | 82° | — | — |
| 2001 | 93° | 61° | 77° | — | — |
| 2000 | 74° | 60° | 67° | 0.13" | — |
| 1999 | 84° | 53° | 69° | — | — |
| 1998 | 103° | 72° | 87° | — | — |
| 1997 | 90° | 63° | 76° | — | — |
| 1996 | 95° | 60° | 78° | — | — |
| 1995 | 89° | 59° | 74° | — | — |
| 1994 | 87° | 57° | 72° | — | — |
| 1993 | 95° | 62° | 79° | — | — |
| 1992 | 87° | 59° | 73° | — | — |
| 1991 | 93° | 60° | 77° | — | — |
| 1990 | 89° | 59° | 74° | — | — |
| 1989 | 94° | 64° | 79° | — | — |
| 1988 | 99° | 66° | 82° | — | — |
| 1987 | 99° | 64° | 81° | — | — |
| 1986 | 99° | 60° | 79° | — | — |
| 1985 | 90° | 65° | 77° | — | — |
| 1984 | 94° | 64° | 79° | — | — |
| 1983 | 83° | 59° | 71° | 0.03" | — |
| 1982 | 91° | 59° | 75° | — | — |
| 1981 | 97° | 60° | 78° | — | — |
| 1980 | 92° | 58° | 75° | — | — |
| 1979 | 90° | 60° | 75° | — | — |
| 1978 | 98° | 60° | 79° | — | — |
| 1977 | 90° | 57° | 73° | — | — |
| 1976 | 101° | 58° | 79° | — | — |
| 1975coldest | 83° | 51° | 67° | — | — |
| 1974 | 92° | 59° | 75° | — | — |
| 1973 | 87° | 54° | 70° | — | — |
| 1972 | 95° | 64° | 80° | — | — |
| 1971 | 88° | 56° | 72° | — | — |
55 years of data from MODESTO AP