Weather on May 20
Olathe, KS
55 Years of Data
Avg High
76°F
Avg Low
57°F
Warmest
1998
80°F avg
Coldest
2015
51°F avg
About This Date
May 20th in Olathe, KS typically brings pleasant spring weather, with average highs around 76°F and lows near 57°F. Over 55 years of records, the warmest May 20th was in 1998 (80°F average), while the coldest was 2015 (51°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 33% of May 20th dates historically, with the wettest May 20th recording 4.8" of rain. The last decade has been 5.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.1°F cooler on this date compared to 20-30 years ago.
Planning for May 20th in Olathe, KS? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 55° | 61° | 0.69" | — |
| 2024 | 81° | 63° | 72° | — | — |
| 2023 | 71° | 46° | 59° | — | — |
| 2022 | 76° | 63° | 69° | — | — |
| 2021 | 72° | 62° | 67° | 0.69" | — |
| 2020 | 68° | 58° | 63° | — | — |
| 2019 | 57° | 47° | 52° | 4.8" | — |
| 2018 | 71° | 62° | 67° | 1.02" | — |
| 2017 | 63° | 48° | 55° | 0.13" | — |
| 2016 | 65° | 53° | 59° | 0.05" | — |
| 2015coldest | 53° | 48° | 51° | 2.51" | — |
| 2014 | 85° | 65° | 75° | — | — |
| 2013 | 76° | 61° | 68° | — | — |
| 2012 | 77° | 61° | 69° | — | — |
| 2011 | 71° | 63° | 67° | 1.55" | — |
| 2010 | 63° | 55° | 59° | 1.22" | — |
| 2009 | 80° | 58° | 69° | — | — |
| 2008 | 83° | 60° | 71° | — | — |
| 2007 | 76° | 57° | 66° | — | — |
| 2006 | 94° | 60° | 77° | — | — |
| 2005 | 88° | 63° | 75° | — | — |
| 2004 | 83° | 65° | 74° | — | — |
| 2003 | 71° | 49° | 60° | 0.15" | — |
| 2002 | 68° | 48° | 58° | — | — |
| 2001 | 80° | 60° | 70° | — | — |
| 2000 | 70° | 48° | 59° | — | — |
| 1999 | 76° | 60° | 68° | — | — |
| 1998warmest | 86° | 74° | 80° | — | — |
| 1997 | 71° | 46° | 59° | — | — |
| 1996 | 83° | 61° | 72° | — | — |
| 1995 | 74° | 55° | 64° | — | — |
| 1994 | 77° | 52° | 64° | — | — |
| 1993 | 65° | 44° | 54° | 0.36" | — |
| 1992 | 80° | 63° | 71° | 0.03" | — |
| 1991 | 72° | 63° | 67° | — | — |
| 1990 | 71° | 52° | 61° | — | — |
| 1989 | 80° | 57° | 69° | — | — |
| 1988 | 88° | 62° | 75° | 0.05" | — |
| 1987 | 84° | 67° | 75° | — | — |
| 1986 | 71° | 49° | 60° | — | — |
| 1985 | 75° | 58° | 66° | — | — |
| 1984 | 76° | 59° | 67° | 1.7" | — |
| 1983 | 70° | 49° | 59° | — | — |
| 1982 | 77° | 65° | 71° | — | — |
| 1981 | 70° | 44° | 57° | — | — |
| 1980 | 73° | 54° | 63° | — | — |
| 1979 | 74° | 58° | 66° | 1.32" | — |
| 1978 | 81° | 62° | 71° | 1.78" | — |
| 1977 | 78° | 60° | 69° | 2.31" | — |
| 1976 | 80° | 56° | 68° | — | — |
| 1975 | 88° | 71° | 79° | — | — |
| 1974 | 87° | 67° | 77° | — | — |
| 1973 | 83° | 55° | 69° | — | — |
| 1972 | 83° | 58° | 70° | — | — |
| 1971 | 77° | 46° | 62° | 0.1" | — |
55 years of data from OLATHE 3E