DroughtOdds

Drought in Lebanon County, PA: 1.5 years in 10 since 2000

1.5 years in 10

Lebanon County, PA: 4 of 26 full years had 13+ weeks in drought. Less drought-prone than most US counties.

  1. 0
  2. 7
  3. 34
  4. 0
  5. 0
  6. 1
  7. 0
  8. 0
  9. 0
  10. 0
  11. 0
  12. 0
  13. 0
  14. 0
  15. 0
  16. 0
  17. 7
  18. 19
  19. 6
  20. 0
  21. 0
  22. 0
  23. 0
  24. 7
  25. 15
  26. 19

20002025

Drought years: 2002 (34 wk), 2017 (19 wk), 2024 (15 wk) and 2025 (19 wk). Not a single drought week in 2000, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2019, 2020, 2021 and 2022.

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 Jan turns dry.

Drought has been more common in 2016-2025 (3 years in 10) than in 2000-2015 (0.6 in 10).

Against the rest of PA

4th most drought-prone of 67 PA counties; the PA middle is 0.8 in 10. Closest on the list: Lancaster County (1.5 in 10) and Chester County (1.2 in 10). Driest in PA: Adams County (1.9 in 10). Least drought: Susquehanna County (0 in 10).

When in the year it hits

Most often in Jan (18% of weeks), then Apr (16%) and Feb (16%). Least in Sep (3%). May to September averages 7%.

  1. 18 Jan
  2. 16 Feb
  3. 14 Mar
  4. 16 Apr
  5. 10 May
  6. 8 Jun
  7. 8 Jul
  8. 4 Aug
  9. 3 Sep
  10. 6 Oct
  11. 7 Nov
  12. 12 Dec

The worst year: 2002

2002: 34 weeks in drought, peaking at D3 extreme. Across 1,401 weekly maps: 10.3% of all weeks at D1 or worse, 3.2% at D2, never any D4. Longest unbroken spell: 30 weeks, Oct 22, 2024 to May 13, 2025.

Lately

Last drought year: 2025, 19 weeks. 2016-2025: 3 in 10, against 0.6 in 10 for 2000-2015, drier lately. So far in 2026: 29 of 44 weeks in drought, through Nov 3, 2026.

Further reading

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