Drought in Loudoun County, VA: 1.9 years in 10 since 2000

1.9 years in 10

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

1. 0
2. 7
3. 38
4. 0
5. 0
6. 3
7. 4
8. 18
9. 4
10. 4
11. 11
12. 4
13. 0
14. 0
15. 0
16. 0
17. 5
18. 8
19. 0
20. 3
21. 0
22. 0
23. 0
24. 31
25. 24
26. 36

20002025

Drought years: 2002 (38 wk), 2007 (18 wk), 2023 (31 wk), 2024 (24 wk) and 2025 (36 wk). Not a single drought week in 2000, 2003, 2004, 2012, 2013, 2014, 2015, 2018, 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 Aug turns dry.

Against the rest of VA

73rd most drought-prone of 133 VA counties; the VA middle is 1.9 in 10. Closest on the list: Campbell County (1.9 in 10) and Washington County (1.9 in 10). Driest in VA: Halifax County (3.1 in 10). Least drought: Covington City (1.2 in 10).

When in the year it hits

Most often in Aug (26% of weeks), then Sep (22%) and Oct (20%). Least in May (11%). May to September averages 18%.

1. 13 Jan
2. 12 Feb
3. 17 Mar
4. 18 Apr
5. 11 May
6. 11 Jun
7. 18 Jul
8. 26 Aug
9. 22 Sep
10. 20 Oct
11. 19 Nov
12. 16 Dec

The worst year: 2002

2002: 38 weeks in drought, peaking at D3 extreme. Across 1,401 weekly maps: 17% of all weeks at D1 or worse, 5.5% at D2, 0.9% at D3, never any D4. Longest unbroken spell: 51 weeks, Oct 7, 2025 to Sep 22, 2026.

Lately

Last drought year: 2025, 36 weeks. 2016-2025: 3 in 10, against 1.3 in 10 for 2000-2015, about the same. So far in 2026: 38 of 44 weeks in drought, through Nov 3, 2026.

Further reading

Loudoun County lands on the plan covered in keeping a regular lawn. Its worst year, 2002, was not one of the big national drought years; see the worst years since 2000. How each of Loudoun County's 1,401 weeks was judged: how drought is counted.