Weather on April 20
Olathe, KS
55 Years of Data
Avg High
68°F
Avg Low
47°F
Warmest
1987
75°F avg
Coldest
2021
38°F avg
About This Date
April 20th in Olathe, KS typically brings mild spring weather, with average highs around 68°F and lows near 47°F. Over 55 years of records, the warmest April 20th was in 1987 (75°F average), while the coldest was 2021 (38°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 35% of April 20th dates historically, with the wettest April 20th recording 8.81" of rain. The last decade has been 8.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 8.8°F cooler on this date compared to 20-30 years ago.
Planning for April 20th in Olathe, KS? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 45° | 50° | 3.63" | — |
| 2024 | 56° | 42° | 49° | — | — |
| 2023 | 71° | 45° | 58° | 1.17" | — |
| 2022 | 61° | 52° | 56° | — | — |
| 2021coldest | 45° | 31° | 38° | 0.41" | — |
| 2020 | 69° | 41° | 55° | 0.13" | — |
| 2019 | 73° | 41° | 57° | — | — |
| 2018 | 62° | 36° | 49° | — | — |
| 2017 | 69° | 51° | 60° | 0.03" | — |
| 2016 | 66° | 53° | 60° | 0.46" | — |
| 2015 | 59° | 44° | 52° | — | — |
| 2014 | 76° | 53° | 64° | — | — |
| 2013 | 56° | 31° | 44° | — | — |
| 2012 | 62° | 46° | 54° | — | — |
| 2011 | 55° | 38° | 46° | — | — |
| 2010 | 69° | 46° | 58° | — | — |
| 2009 | 61° | 44° | 52° | 0.03" | — |
| 2008 | 66° | 42° | 54° | — | — |
| 2007 | 68° | 45° | 56° | — | — |
| 2006 | 72° | 44° | 58° | — | — |
| 2005 | 74° | 53° | 63° | — | — |
| 2004 | 74° | 58° | 66° | 0.76" | — |
| 2003 | 70° | 46° | 58° | 8.81" | — |
| 2002 | 82° | 52° | 67° | — | — |
| 2001 | 81° | 64° | 72° | — | — |
| 2000 | 77° | 44° | 61° | 0.46" | — |
| 1999 | 79° | 50° | 64° | — | — |
| 1998 | 66° | 44° | 55° | — | — |
| 1997 | 70° | 49° | 59° | 0.13" | — |
| 1996 | 70° | 40° | 55° | — | — |
| 1995 | 64° | 50° | 57° | — | — |
| 1994 | 76° | 53° | 64° | — | — |
| 1993 | 59° | 36° | 47° | 0.33" | — |
| 1992 | 66° | 34° | 50° | 1.91" | — |
| 1991 | 55° | 45° | 50° | — | — |
| 1990 | 73° | 46° | 60° | 0.08" | — |
| 1989 | 75° | 45° | 60° | — | — |
| 1988 | 77° | 45° | 61° | — | — |
| 1987warmest | 87° | 63° | 75° | — | — |
| 1986 | 67° | 44° | 55° | — | — |
| 1985 | 80° | 61° | 70° | — | — |
| 1984 | 59° | 44° | 52° | — | — |
| 1983 | 57° | 39° | 48° | — | — |
| 1982 | 53° | 38° | 45° | — | — |
| 1981 | 60° | 50° | 55° | 0.2" | — |
| 1980 | 85° | 52° | 68° | — | — |
| 1979 | 74° | 53° | 63° | — | — |
| 1978 | 50° | 33° | 42° | — | — |
| 1977 | 71° | 55° | 63° | — | — |
| 1976 | 59° | 52° | 55° | 1.32" | — |
| 1975 | 68° | 36° | 52° | — | — |
| 1974 | 77° | 62° | 70° | 0.13" | — |
| 1973 | 71° | 51° | 61° | 2.84" | — |
| 1972 | 65° | 52° | 58° | 1.14" | — |
| 1971 | 71° | 53° | 62° | — | — |
55 years of data from OLATHE 3E