climatesince.com

Johnson County, KS

: September 2026 so far averaged 76.7°F in Johnson County, KS, the warmest 1 to 29 September in the county average since the data begin in 1951 (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
78.6°F
Warmest since 2025
30th warmest of 76
Low
61.1°F
Warmest since 2023
10th warmest of 76

No measurable precipitation in the county average of Johnson County, KS for 2 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September low of the county average in Johnson County, KS since 1951: 61.1°F in 2026; the lowest is 36°F, in 1984.
2023: 62.5°F1984: 36°F2026: 61.1°F 2026 61.1°F 1984 36°F since 2023 1951 2026
  • Normal range, 43.5 to 59.1°F
Every year as a table

Every 29 September high of the county average in Johnson County, KS since 1951: 78.6°F in 2026; the highest is 98.1°F, in 1953.

YearHigh, °FLow, °F
202678.661.1
202587.559.3
20248354.6
202390.962.5
202271.244.3
202188.162
202067.944.7
201975.463.9
201865.545.9
201775.250.4
201667.848.2
201582.957.6
201483.155.6
201370.446.3
201272.149
201184.652.2
201074.650.6
20096944.1
200883.560.4
200783.552.9
200663.845
200569.540.6
200472.944.9
20036739.7
200288.555.4
200173.746.6
200080.952.5
199958.945.3
199887.664.8
199776.952.5
199672.244.6
199582.358.9
199476.950.5
199370.743.8
199265.238.8
199182.452
199078.554.7
198976.742.2
198879.256.6
198772.151.9
198684.964.8
19855745.6
198454.336
198384.561.7
198282.960.8
198179.553.3
198065.551.4
197985.855.4
197877.248.5
197772.957.2
197660.545.8
197566.545.5
197463.540
197369.750.8
19727846
197186.670.8
197078.448.3
196977.256.7
196882.456.6
196761.836.1
196670.650.3
196578.858.1
196469.542.7
196383.348.4
196267.247.2
196169.444
196078.250.3
195970.946.9
19586846.4
195771.642.7
195690.257.7
19558160.3
19548664.1
195398.167.9
195291.759
195164.141.8

The month

August 2026 averaged 78.8°F in Johnson County, KS, the warmest August in the county average since 2023, tied 30th warmest of 132 (with 1957 and 1955) (county average from NOAA's monthly county data, 1895 to 2026).

The month in words
  • Tuesday 29 September 2026: a high of 78.6°F averaged over Johnson County, KS, the warmest 29 September in the county average since 2025, 30th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 61.1°F averaged over Johnson County, KS, the warmest 29 September night in the county average since 2023, 10th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Kansas City, MO 29.0 mi, the nearest city with its own station