Weather on September 1
Olathe, KS
55 Years of Data
Avg High
84°F
Avg Low
65°F
Warmest
2000
89°F avg
Coldest
2009
59°F avg
About This Date
September 1st in Olathe, KS typically brings warm fall weather, with average highs around 84°F and lows near 65°F. Over 55 years of records, the warmest September 1st was in 2000 (89°F average), while the coldest was 2009 (59°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 1st dates historically, with the wettest September 1st recording 7.9" 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 September 1st in Olathe, KS? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 64° | 68° | 0.28" | — |
| 2024 | 87° | 62° | 75° | — | — |
| 2023 | 91° | 59° | 75° | — | — |
| 2022 | 87° | 64° | 76° | — | — |
| 2021 | 81° | 67° | 74° | — | — |
| 2020 | 83° | 67° | 75° | 0.13" | — |
| 2019 | 79° | 65° | 72° | — | — |
| 2018 | 89° | 74° | 81° | — | — |
| 2017 | 79° | 61° | 70° | — | — |
| 2016 | 78° | 60° | 69° | — | — |
| 2015 | 86° | 70° | 78° | — | — |
| 2014 | 79° | 64° | 71° | 1.93" | — |
| 2013 | 88° | 69° | 78° | 1.98" | — |
| 2012 | 81° | 70° | 75° | 7.9" | — |
| 2011 | 99° | 77° | 88° | — | — |
| 2010 | 76° | 67° | 71° | 0.33" | — |
| 2009coldest | 67° | 51° | 59° | — | — |
| 2008 | 86° | 67° | 76° | — | — |
| 2007 | 87° | 59° | 73° | — | — |
| 2006 | 81° | 61° | 71° | — | — |
| 2005 | 88° | 67° | 77° | — | — |
| 2004 | 84° | 64° | 74° | — | — |
| 2003 | 70° | 61° | 65° | 3.63" | — |
| 2002 | 90° | 69° | 79° | — | — |
| 2001 | 79° | 59° | 69° | — | — |
| 2000warmest | 104° | 73° | 89° | — | — |
| 1999 | 91° | 67° | 79° | — | — |
| 1998 | 82° | 65° | 73° | 0.18" | — |
| 1997 | 89° | 71° | 80° | — | — |
| 1996 | 81° | 64° | 72° | — | — |
| 1995 | 85° | 68° | 76° | 0.25" | — |
| 1994 | 74° | 58° | 66° | — | — |
| 1993 | 76° | 56° | 66° | — | — |
| 1992 | 80° | 65° | 72° | 0.3" | — |
| 1991 | 84° | 70° | 77° | — | — |
| 1990 | 99° | 72° | 85° | — | — |
| 1989 | 86° | 74° | 80° | — | — |
| 1988 | 89° | 56° | 72° | — | — |
| 1987 | 81° | 55° | 68° | — | — |
| 1986 | 82° | 60° | 71° | — | — |
| 1985 | 93° | 70° | 81° | — | — |
| 1984 | 96° | 73° | 85° | — | — |
| 1983 | 89° | 62° | 76° | — | — |
| 1982 | 86° | 72° | 79° | 0.05" | — |
| 1981 | 76° | 61° | 68° | 2.79" | — |
| 1980 | 86° | 66° | 76° | 0.91" | — |
| 1979 | 81° | 62° | 71° | — | — |
| 1978 | 86° | 59° | 73° | — | — |
| 1977 | 83° | 65° | 74° | 1.57" | — |
| 1976 | 86° | 64° | 75° | — | — |
| 1975 | 95° | 73° | 84° | — | — |
| 1974 | 65° | 55° | 60° | 5.66" | — |
| 1973 | 85° | 71° | 78° | — | — |
| 1972 | 77° | 64° | 71° | — | — |
| 1971 | 92° | 62° | 77° | — | — |
55 years of data from OLATHE 3E