Drought in San Lorenzo Municipio, PR: 0.8 years in 10 since 2000
0.8 years in 10
San Lorenzo Municipio, PR: 2 of 26 full years had 13+ weeks in drought. Less drought-prone than most US counties.
- 0
- 0
- 0
- 0
- 0
- 0
- 0
- 13
- 0
- 0
- 0
- 0
- 0
- 0
- 0
- 35
- 7
- 0
- 0
- 5
- 9
- 5
- 3
- 1
- 0
- 0
20002025
Drought years: 2007 (13 wk) and 2015 (35 wk). Not a single drought week in 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2017, 2018, 2024 and 2025.
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 Jun turns dry.
Against the rest of PR
25th most drought-prone of 78 PR counties; the PR middle is 0.4 in 10. Closest on the list: Guaynabo Municipio (0.8 in 10) and Bayamon Municipio (0.8 in 10). Driest in PR: Salinas Municipio (2.7 in 10). Least drought: Mayaguez Municipio (0 in 10).
When in the year it hits
Most often in Jun (12% of weeks), then Jul (10%) and Dec (9%). Least in Oct (3%). May to September averages 9%.
- 6 Jan
- 6 Feb
- 3 Mar
- 4 Apr
- 6 May
- 12 Jun
- 10 Jul
- 7 Aug
- 9 Sep
- 3 Oct
- 4 Nov
- 9 Dec
The worst year: 2015
2015: 35 weeks in drought, peaking at D3 extreme. Across 1,401 weekly maps: 6.6% of all weeks at D1 or worse, 2.3% at D2, 1.1% at D3, never any D4. Longest unbroken spell: 42 weeks, May 5, 2015 to Feb 16, 2016.
Lately
Last drought year: 2015, 35 weeks. 2016-2025: 0 in 10, against 1.3 in 10 for 2000-2015, about the same. So far in 2026: 14 of 44 weeks in drought, through Nov 3, 2026.
Further reading
San Lorenzo Municipio lands on the plan covered in keeping a regular lawn. Its worst year, 2015, was not one of the big national drought years; see the worst years since 2000. How each of San Lorenzo Municipio's 1,401 weeks was judged: how drought is counted.