Drought in Tillman County, OK: 6.2 years in 10 since 2000

6.2 years in 10

Tillman County, OK: 16 of 26 full years had 13+ weeks in drought. More drought-prone than most US counties.

1. 7
2. 18
3. 0
4. 17
5. 8
6. 13
7. 41
8. 0
9. 7
10. 17
11. 0
12. 50
13. 52
14. 53
15. 52
16. 29
17. 0
18. 5
19. 40
20. 23
21. 6
22. 7
23. 52
24. 52
25. 19
26. 23

20002025

Drought years: 2001 (18 wk), 2003 (17 wk), 2005 (13 wk), 2006 (41 wk), 2009 (17 wk), 2011 (50 wk), 2012 (52 wk), 2013 (53 wk), 2014 (52 wk), 2015 (29 wk), 2018 (40 wk), 2019 (23 wk), 2022 (52 wk), 2023 (52 wk), 2024 (19 wk) and 2025 (23 wk). Not a single drought week in 2002, 2007, 2010 and 2016.

Plan for drought as normal: shrink the lawn, go drip and natives

Drought is the normal state of things here. Most of the yard goes to natives and gravel on drip; any grass that stays is a small, tough patch.

If you are replacing turf, plant natives in fall so roots set before the Sep peak, and check your water utility for a turf-removal rebate before you dig.

Against the rest of OK

13th most drought-prone of 77 OK counties; the OK middle is 4.6 in 10. Closest on the list: Roger Mills County (6.2 in 10) and Washita County (6.2 in 10). Driest in OK: Cimarron County (6.9 in 10). Least drought: McIntosh County (2.3 in 10).

When in the year it hits

Most often in Sep (51% of weeks), then Jan (48%) and Oct (48%). Least in Jun (36%). May to September averages 44%.

1. 48 Jan
2. 47 Feb
3. 45 Mar
4. 42 Apr
5. 43 May
6. 36 Jun
7. 43 Jul
8. 48 Aug
9. 51 Sep
10. 48 Oct
11. 46 Nov
12. 48 Dec

The worst year: 2012

2012: 52 weeks in drought, peaking at D4 exceptional. Across 1,401 weekly maps: 45.3% of all weeks at D1 or worse, 34.6% at D2, 21.8% at D3, 213 weeks with some of the county in D4. Longest unbroken spell: 227 weeks, Jan 18, 2011 to May 19, 2015.

Lately

Last drought year: 2025, 23 weeks. 2016-2025: 6 in 10, against 6.3 in 10 for 2000-2015, about the same. So far in 2026: 44 of 44 weeks in drought, through Nov 3, 2026.

Further reading

Tillman County lands on the plan covered in shrinking the lawn. Its worst year, 2012, was one of the worst nationally too; see the worst years since 2000. How each of Tillman County's 1,401 weeks was judged: how drought is counted.