Weather on September 30
Olathe, KS
55 Years of Data
Avg High
77°F
Avg Low
54°F
Warmest
1981
79°F avg
Coldest
1985
46°F avg
About This Date
September 30th in Olathe, KS typically brings pleasant fall weather, with average highs around 77°F and lows near 54°F. Over 55 years of records, the warmest September 30th was in 1981 (79°F average), while the coldest was 1985 (46°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 18% of September 30th dates historically, with the wettest September 30th recording 4.39" of rain. The last decade has been 6.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.3°F warmer on this date compared to 20-30 years ago.
Planning for September 30th in Olathe, KS? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 62° | 72° | — | — |
| 2024 | 84° | 56° | 70° | — | — |
| 2023 | 89° | 66° | 78° | — | — |
| 2022 | 75° | 46° | 61° | — | — |
| 2021 | 84° | 66° | 75° | — | — |
| 2020 | 76° | 54° | 65° | — | — |
| 2019 | 86° | 72° | 79° | — | — |
| 2018 | 74° | 65° | 69° | — | — |
| 2017 | 77° | 58° | 67° | — | — |
| 2016 | 74° | 50° | 62° | — | — |
| 2015 | 71° | 52° | 61° | — | — |
| 2014 | 83° | 60° | 71° | 0.03" | — |
| 2013 | 76° | 46° | 61° | — | — |
| 2012 | 76° | 54° | 65° | — | — |
| 2011 | 72° | 48° | 60° | — | — |
| 2010 | 76° | 54° | 65° | — | — |
| 2009 | 73° | 46° | 60° | — | — |
| 2008 | 73° | 49° | 61° | — | — |
| 2007 | 82° | 61° | 71° | — | — |
| 2006 | 71° | 50° | 61° | — | — |
| 2005 | 65° | 43° | 54° | — | — |
| 2004 | 72° | 46° | 59° | — | — |
| 2003 | 64° | 42° | 53° | 0.18" | — |
| 2002 | 89° | 65° | 77° | — | — |
| 2001 | 72° | 47° | 59° | — | — |
| 2000 | 79° | 63° | 71° | — | — |
| 1999 | 72° | 43° | 57° | — | — |
| 1998 | 77° | 65° | 71° | 1.27" | — |
| 1997 | 79° | 57° | 68° | — | — |
| 1996 | 77° | 56° | 66° | — | — |
| 1995 | 82° | 63° | 72° | 0.33" | — |
| 1994 | 87° | 66° | 77° | — | — |
| 1993 | 78° | 48° | 63° | — | — |
| 1992 | 76° | 47° | 61° | — | — |
| 1991 | 82° | 56° | 69° | — | — |
| 1990 | 72° | 47° | 59° | 0.08" | — |
| 1989 | 82° | 50° | 66° | — | — |
| 1988 | 65° | 56° | 60° | — | — |
| 1987 | 77° | 47° | 62° | — | — |
| 1986 | 74° | 61° | 67° | 4.39" | — |
| 1985coldest | 53° | 39° | 46° | 3.45" | — |
| 1984 | 61° | 34° | 47° | — | — |
| 1983 | 82° | 55° | 69° | — | — |
| 1982 | 85° | 61° | 73° | — | — |
| 1981warmest | 90° | 68° | 79° | — | — |
| 1980 | 81° | 56° | 68° | — | — |
| 1979 | 85° | 55° | 70° | — | — |
| 1978 | 77° | 50° | 64° | 0.43" | — |
| 1977 | 84° | 63° | 73° | — | — |
| 1976 | 83° | 46° | 64° | — | — |
| 1975 | 66° | 51° | 59° | 0.05" | — |
| 1974 | 70° | 41° | 55° | — | — |
| 1973 | 64° | 55° | 60° | 0.05" | — |
| 1972 | 66° | 36° | 51° | — | — |
| 1971 | 87° | 69° | 78° | — | — |
55 years of data from OLATHE 3E