DroughtOdds

Drought in Polk County, OR: 3.5 years in 10 since 2000

3.5 years in 10

Polk County, OR: 9 of 26 full years had 13+ weeks in drought. About as drought-prone as a typical US county.

  1. 0
  2. 42
  3. 0
  4. 7
  5. 0
  6. 7
  7. 0
  8. 0
  9. 0
  10. 2
  11. 0
  12. 0
  13. 0
  14. 1
  15. 16
  16. 26
  17. 0
  18. 2
  19. 24
  20. 24
  21. 32
  22. 35
  23. 3
  24. 27
  25. 0
  26. 29

20002025

Drought years: 2001 (42 wk), 2014 (16 wk), 2015 (26 wk), 2018 (24 wk), 2019 (24 wk), 2020 (32 wk), 2021 (35 wk), 2023 (27 wk) and 2025 (29 wk). Not a single drought week in 2000, 2002, 2004, 2006, 2007, 2008, 2010, 2011, 2012, 2016 and 2024.

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.

This is one step drier than the yearly count alone suggests, because 27% of growing-season weeks here were in drought.

Drought has been more common in 2016-2025 (6 years in 10) than in 2000-2015 (1.9 in 10).

Against the rest of OR

29th most drought-prone of 36 OR counties; the OR middle is 4.4 in 10. Closest on the list: Curry County (3.5 in 10) and Lincoln County (3.5 in 10). Driest in OR: Lake County (7.7 in 10). Least drought: Clatsop County (2.7 in 10).

When in the year it hits

Most often in Sep (38% of weeks), then Aug (36%) and Jul (29%). Least in Jan (8%). May to September averages 27%.

  1. 8 Jan
  2. 14 Feb
  3. 13 Mar
  4. 10 Apr
  5. 12 May
  6. 22 Jun
  7. 29 Jul
  8. 36 Aug
  9. 38 Sep
  10. 29 Oct
  11. 25 Nov
  12. 13 Dec

The worst year: 2001

2001: 42 weeks in drought, peaking at D2 severe. Across 1,401 weekly maps: 20.8% of all weeks at D1 or worse, 9.8% at D2, never any D4. Longest unbroken spell: 42 weeks, Feb 13, 2001 to Nov 27, 2001.

Lately

Last drought year: 2025, 29 weeks. 2016-2025: 6 in 10, against 1.9 in 10 for 2000-2015, drier lately. So far in 2026: 14 of 44 weeks in drought, through Nov 3, 2026.

Further reading

Polk County lands on the plan covered in shrinking the lawn. Its last ten years ran drier than the ten before; what that does and does not mean. How each of Polk County's 1,401 weeks was judged: how drought is counted.