Massacre Memorial State Park Rainfall Forecast

Today 7 Sep
40%
Tue 8 Sep
10%
Wed 9 Sep
80%
Thu 10 Sep
95%
Fri 11 Sep
35%
Sat 12 Sep
50%
Sun 13 Sep
20%

Massacre Memorial State Park Rainfall Statistics

September Rainfall

Olathe, Johnson County Executive Airport (39.8 miles)

Total Rainfall 2026
27.6in
Daily Average 2026
0.1in
Wettest Day 10 March, 2026
2.8in
Wet Days 2026
64/250 (26%)
Total Rainfall August
2.8in
Daily Average August
0.1in
Wettest Day 5 August, 2026
1.5in
Wet Days August
5/31 (16%)
Total Rainfall September
0in
Daily Average September
0in
Wettest Day 1 September, 2026
0in
Wet Days September
–

Climate (2021–2025)

Olathe, Johnson County Executive Airport (39.8 miles)

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Annual Average 2021–2025
34.2in
Monthly Average 2021–2026
2.8in
Daily Average 2021–2026
0.1in
Wettest Day 17 July, 2025
3in

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