DroughtOdds

Drought in Ross County, OH: 1.2 years in 10 since 2000

1.2 years in 10

Ross County, OH: 3 of 26 full years had 13+ weeks in drought. Less drought-prone than most US counties.

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

20002025

Drought years: 2007 (21 wk), 2012 (23 wk) and 2024 (19 wk). Not a single drought week in 2003, 2004, 2006, 2009, 2011, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 and 2021.

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 OH

21st most drought-prone of 88 OH counties; the OH middle is 0.8 in 10. Closest on the list: Greene County (1.2 in 10) and Gallia County (1.2 in 10). Driest in OH: Williams County (2.7 in 10). Least drought: Ashtabula County (0 in 10).

When in the year it hits

Most often in Sep (18% of weeks), then Oct (18%) and Aug (15%). Least in Apr (0%). May to September averages 11%.

  1. 1 Jan
  2. 0 Feb
  3. 0 Mar
  4. 0 Apr
  5. 2 May
  6. 6 Jun
  7. 13 Jul
  8. 15 Aug
  9. 18 Sep
  10. 18 Oct
  11. 10 Nov
  12. 4 Dec

The worst year: 2012

2012: 23 weeks in drought, peaking at D2 severe. Across 1,401 weekly maps: 7.2% of all weeks at D1 or worse, 1.7% at D2, 0.4% at D3, 4 weeks with some of the county in D4. Longest unbroken spell: 21 weeks, Jun 5, 2007 to Oct 23, 2007.

Lately

Last drought year: 2024, 19 weeks. 2016-2025: 1 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

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