Olathe September 21 Weather Records

Daily averages and all-time records for weather in Olathe, Kansas for the date of September 21.
September 21 All-Time Records
1893–2024
Highest temperature 95 °F 1956
Lowest temperature 33 °F 1927
Lowest daily high 54 °F 1962
Highest daily low 75 °F 1893
Most precipitation 2.51 inches 1931
September 21 Average Weather
1991–2020 1
Average high 78.2 °F
Average low 56.0 °F
Chance precipitation 30.9%
Olathe September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 88 61 0.30 n/a
2022 90 58 0.14 n/a
2021 74 53 0.00 n/a
2020 79 56 0.00 n/a
2019 77 71 0.30 n/a
2018 75 51 0.27 n/a
2017 90 74 0.00 n/a
2016 89 72 0.00 n/a
2015 76 60 0.00 n/a
2014 76 54 0.00 n/a
2013 75 47 0.00 0.0
2012 80 51 0.00 0.0
2011 72 50 0.01 n/a
2010 87 68 0.00 n/a
2009 68 57 2.34 n/a
2008 79 57 0.01 n/a
2007 89 63 0.03 n/a
2006 65 59 0.73 n/a
2005 89 61 0.01 n/a
2004 84 61 0.00 n/a
2003 74 55 0.05 n/a
2002 86 54 0.00 n/a
2001 79 57 0.01 n/a
2000 74 41 0.00 n/a
1999 63 37 0.00 n/a
1998 74 56 0.99 n/a
1997 72 51 n/a n/a
1996 n/a n/a n/a n/a
1995 n/a n/a n/a n/a
1994 n/a n/a n/a n/a
1993 n/a n/a n/a n/a
1992 n/a n/a n/a n/a
1991 n/a n/a n/a n/a
1990 n/a n/a n/a n/a
1989 n/a n/a n/a n/a
1988 n/a n/a n/a n/a
1987 n/a n/a n/a n/a
1986 n/a n/a n/a n/a
1985 n/a n/a n/a n/a
1984 n/a n/a n/a n/a
1983 n/a n/a n/a n/a
1982 n/a n/a n/a n/a
1981 n/a n/a n/a n/a
1980 n/a n/a n/a n/a
1979 n/a n/a n/a n/a
1978 n/a n/a n/a n/a
1977 n/a n/a n/a n/a
1976 n/a n/a n/a n/a
1975 n/a n/a n/a n/a
1974 n/a n/a n/a n/a
1973 n/a n/a n/a n/a
1972 n/a n/a n/a n/a
1971 n/a n/a n/a n/a
1970 n/a n/a n/a n/a
1969 82 60 0.00 0.0
1968 90 68 0.01 0.0
1967 76 56 0.00 0.0
1966 78 52 0.00 0.0
1965 67 57 0.42 0.0
1964 78 64 0.00 0.0
1963 79 60 0.00 0.0
1962 54 49 0.38 0.0
1961 85 64 0.16 0.0
1960 83 67 0.05 0.0
1959 83 62 0.46 0.0
1958 76 59 0.16 0.0
1957 68 54 n/a 0.0
1956 95 64 n/a n/a
1955 93 66 n/a n/a
1954 68 51 0.00 0.0
1953 67 48 0.00 0.0
1952 71 47 0.00 0.0
1951 70 46 0.02 0.0
1950 72 61 0.00 0.0
1949 74 61 0.02 0.0
1948 87 68 0.00 0.0
1947 73 60 2.33 0.0
1946 80 49 n/a 0.0
1945 83 57 n/a n/a
1944 84 64 0.00 0.0
1943 80 47 n/a 0.0
1942 74 45 0.00 0.0
1941 85 70 0.00 0.0
1940 89 64 0.00 0.0
1939 81 51 0.00 0.0
1938 79 44 0.00 n/a
1937 93 60 0.00 n/a
1936 87 69 0.00 0.0
1935 86 62 0.00 0.0
1934 57 44 0.78 0.0
1933 85 55 0.00 0.0
1932 81 56 0.56 0.0
1931 75 66 2.51 0.0
1930 90 52 0.00 0.0
1929 n/a n/a n/a n/a
1928 84 48 n/a 0.0
1927 68 33 n/a 0.0
1926 89 69 n/a 0.0
1925 n/a 55 0.50 0.0
1924 75 58 0.00 0.0
1923 78 47 0.00 0.0
1922 76 46 0.00 0.0
1921 82 54 0.68 n/a
1920 82 59 0.00 0.0
1919 81 55 0.74 n/a
1918 70 47 0.00 n/a
1917 83 47 0.00 n/a
1916 80 48 0.00 n/a
1915 66 37 0.00 n/a
1914 84 67 0.00 n/a
1913 68 36 0.00 n/a
1912 69 40 0.00 n/a
1911 74 48 0.00 n/a
1910 84 59 0.00 n/a
1909 81 63 0.00 n/a
1908 86 62 0.00 n/a
1907 78 52 0.00 n/a
1906 81 59 0.00 n/a
1905 n/a n/a n/a n/a
1904 65 55 0.00 n/a
1903 79 52 n/a n/a
1902 70 63 0.85 n/a
1901 75 44 n/a n/a
1900 79 53 n/a n/a
1899 80 46 n/a n/a
1898 73 67 0.12 n/a
1897 78 44 0.00 n/a
1896 80 51 0.00 n/a
1895 89 68 0.00 n/a
1894 80 58 1.00 n/a
1893 91 75 0.00 n/a
What's the all-time high for Olathe on 9/21?
For the date of Sep 21, the highest temperature ever reached in Olathe history is 95 °F which happened in 1956.
Highest Temperatures in Olathe on September 21
Rank Temperature Year
1 95 °F 1956
2 93 °F 1937
2 93 °F 1955
4 91 °F 1893
5 90 °F 1930
5 90 °F 1968
5 90 °F 2017
5 90 °F 2022
9 89 °F 1940
9 89 °F 2005
9 89 °F 2007
9 89 °F 2016
9 89 °F 1895
9 89 °F 1926
What's the all-time low for Olathe on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Olathe history is 33 °F which happened in 1927.
Lowest Temperatures in Olathe on September 21
Rank Temperature Year
1 33 °F 1927
2 36 °F 1913
3 37 °F 1915
3 37 °F 1999
5 40 °F 1912
6 41 °F 2000
7 44 °F 1901
7 44 °F 1934
7 44 °F 1897
7 44 °F 1938
Lowest High Temperatures in Olathe on September 21
Rank Temperature Year
1 54 °F 1962
2 57 °F 1934
3 63 °F 1999
4 65 °F 1904
4 65 °F 2006
6 66 °F 1915
7 67 °F 1965
7 67 °F 1953
9 68 °F 1927
9 68 °F 1957
9 68 °F 2009
9 68 °F 1954
9 68 °F 1913
What's the most it has ever rained in Olathe on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Olathe history is 2.51 inches which happened in 1931.
All-Time Most Precipitation in Olathe on September 21
Rank Precipitation Year
1 2.51 inches 1931
2 2.34 inches 2009
3 2.33 inches 1947
4 1.00 inches 1894
5 0.99 inches 1998
6 0.85 inches 1902
7 0.78 inches 1934
8 0.74 inches 1919
9 0.73 inches 2006
10 0.68 inches 1921
Weather Station Details
Years Station Coordinates
1948–2024 Olathe Johnson County Airport location
1893–1947 Olathe 3E location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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