Aquifer report for September 2025
Environment  |  Sat - October 4, 2025 5:32 pm  |  Article Hits:65  |  A+ | a-

September Water Resource Monthly Update



The Southwest Florida Water Management District urges year-round water conservation. Water levels may rise and fall, but our water resources remain limited. The District encourages efficient, non-wasteful uses of water to sustain our high quality of life. For more information about ways to conserve water, contact the District at 1-800-423-1476 or visit the District's website at WaterMatters.org
 
September Water Resource Monthly Update
 
Aquifer* Levels (percentile)
 

Regions **   Sept. 30
 percentile***
  Previous week percentile   Same date
last year percentile
  Normal range percentile****  
North   26   31   70   25-75  
Central   31   36   73   25-75  
South   25   29   60   25-75  

 
Aquifers are underground layers of rock and sand that hold water. In southwest Florida, more than 80 percent of the water supply comes from aquifers.
 
** North (Citrus, Hernando, Lake, Levy, Marion and Sumter counties)
Central (Hillsborough, Pasco, Pinellas and Polk counties)
South (Charlotte, DeSoto, Hardee, Highlands, Manatee and Sarasota counties)
 
*** The percentile compares current aquifer levels to historical levels during the same time of year on a scale of 0-100. For example, the if groundwater level is at the 50th percentile, it means that half of the historical levels for this time of year were higher and half were lower than the current level.
 
**** Any level that falls between the 25th and the 75th percentile is considered normal. Less than the 25th would be considered below normal and above the 75th percentile is above normal.


2025 Rainfall (in inches) *
 
  Sept. 30 September Year to date January – September
  Actual ** Historic Avg.*** Normal Range*** Actual** Historic
Avg.***
Normal Range***
North 3.33 6.32 4.16 – 8.03 34.84 46.06 41.43 – 50.54
Central 2.78 6.92 4.82 – 7.98 37.07 45.17 40.06 – 48.62
South 3.52 7.47 5.36 – 9.18 36.10 45.51 40.40 – 50.22
 
Historic Rainfall (January - December in inches)
 
  2024 2023 2022 2021 2020 2019 2018 2017 Jan. through Dec.
  Actual Actual Actual Actual Actual Actual Actual Actual Historic Avg.*** Normal Range***
North 58.57 48.00 51.78 60.87 47.77 57.02 66.66 52.41 54.01 48.63 – 58.08
Central 61.49 42.23 55.14 50.15 52.10 56.03 59.62 51.37 52.20 46.83 – 56.56
South 55.68 40.82 60.49 45.70 52.23 48.56 56.53 57.43 52.64 47.05 – 57.09
 
 
 
 
 
Top