Drought in Harrison County, IN: 0.8 years in 10 since 2000

0.8 years in 10

Harrison County, IN: 2 of 26 full years had 13+ weeks in drought. Less drought-prone than most US counties.

1. 1
2. 7
3. 8
4. 0
5. 0
6. 0
7. 0
8. 17
9. 1
10. 0
11. 13
12. 4
13. 9
14. 0
15. 0
16. 1
17. 7
18. 0
19. 0
20. 5
21. 0
22. 0
23. 9
24. 5
25. 5
26. 0

20002025

Drought years: 2007 (17 wk) and 2010 (13 wk). Not a single drought week in 2003, 2004, 2005, 2006, 2009, 2013, 2014, 2017, 2018, 2020, 2021 and 2025.

A regular lawn is fine here; plan for the odd dry year

Real droughts are rare here. A smart controller that skips watering after rain covers the odd dry year.

You can keep a regular lawn. Worth doing: a rain-sensing or smart controller, and deeper, less frequent watering if Sep turns dry.

Against the rest of IN

88th most drought-prone of 92 IN counties; the IN middle is 1.5 in 10. Closest on the list: Ohio County (0.8 in 10) and Posey County (0.4 in 10). Driest in IN: LaGrange County (3.5 in 10). Least drought: Floyd County (0.4 in 10).

When in the year it hits

Most often in Sep (16% of weeks), then Oct (16%) and Nov (13%). Least in Mar (0%). May to September averages 8%.

1. 3 Jan
2. 0 Feb
3. 0 Mar
4. 1 Apr
5. 4 May
6. 4 Jun
7. 6 Jul
8. 11 Aug
9. 16 Sep
10. 16 Oct
11. 13 Nov
12. 4 Dec

The worst year: 2007

2007: 17 weeks in drought, peaking at D3 extreme. Across 1,401 weekly maps: 6.6% of all weeks at D1 or worse, 2.1% at D2, 0.6% at D3, never any D4. Longest unbroken spell: 13 weeks, Jul 31, 2007 to Oct 23, 2007.

Lately

Last drought year: 2010, 13 weeks. 2016-2025: 0 in 10, against 1.3 in 10 for 2000-2015, about the same. So far in 2026: 0 of 44 weeks in drought, through Nov 3, 2026.

Further reading

Harrison County lands on the plan covered in keeping a regular lawn. Its worst year, 2007, was one of the worst nationally too; see the worst years since 2000. How each of Harrison County's 1,401 weeks was judged: how drought is counted.