Drought in Iosco County, MI: 1.9 years in 10 since 2000

1.9 years in 10

Iosco County, MI: 5 of 26 full years had 13+ weeks in drought. Less drought-prone than most US counties.

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

20002025

Drought years: 2002 (14 wk), 2003 (21 wk), 2021 (13 wk), 2024 (13 wk) and 2025 (25 wk). Not a single drought week in 2006, 2008, 2009, 2010, 2011, 2013, 2014, 2015, 2016, 2017, 2019, 2020 and 2023.

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 Oct turns dry.

Against the rest of MI

24th most drought-prone of 83 MI counties; the MI middle is 1.5 in 10. Closest on the list: Manistee County (1.9 in 10) and Barry County (1.9 in 10). Driest in MI: Gogebic County (3.5 in 10). Least drought: Newaygo County (0.8 in 10).

When in the year it hits

Most often in Oct (15% of weeks), then Nov (13%) and Dec (13%). Least in Jun (6%). May to September averages 9%.

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

The worst year: 2025

2025: 25 weeks in drought, peaking at D2 severe. Across 1,401 weekly maps: 9.7% of all weeks at D1 or worse, 3% at D2, never any D4. Longest unbroken spell: 32 weeks, Oct 1, 2002 to May 6, 2003.

Lately

Last drought year: 2025, 25 weeks. 2016-2025: 3 in 10, against 1.3 in 10 for 2000-2015, about the same. So far in 2026: 1 of 44 weeks in drought, through Nov 3, 2026.

Further reading

Iosco County lands on the plan covered in keeping a regular lawn. Its worst year, 2025, was not one of the big national drought years; see the worst years since 2000. How each of Iosco County's 1,401 weeks was judged: how drought is counted.