Lake Frances
Hillsborough County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Lake Frances. Here is what has been measured.
- Limited data
Lake Frances in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.5 ft visibility.
Lake Frances is a lake in Hillsborough County, Florida. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-07-30. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Frances is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Frances
These are the measurements Florida DEP publishes for Lake Frances, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2.5 ft of visibility. TSI 64.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 64 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Lake Frances
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Lake Frances typically sits around 83°F at the surface in October. Summer average is about 89°F. Usually warmest in Jun (about 90°F) and coldest in Jan (about 65°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (65°F) to its warmest (90°F).
Typical surface water temperature by month, from 68 field readings (2016–2024) via the EPA Water Quality Portal. See the full Lake Frances water temperature breakdown →
Stays via Stay22
Stays near Lake Frances
Compare lakeside cabins, hotels, and vacation rentals near Lake Frances in Hillsborough County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Fishing Lake Frances
Water Quality Trend: Improving
Based on 5 years of monitoring (2020–2024).
Water clarity
Improving5 years
Phosphorus
Improving-2.75 µg/L/yr5 years
Nearby Lakes in Hillsborough County
Frequently asked questions about Lake Frances
Where is Lake Frances?
- Lake Frances is a lake in Hillsborough County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Lake Frances?
- Lake Frances in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.5 ft visibility.
Is Lake Frances safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Lake Frances?
- Lake Frances typically sits around 83°F at the surface in October, from 68 EPA Water Quality Portal field readings (2016–2024). That is a typical value for the month, not a live reading.
Explore Lake Frances across LakeQuality
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Where this data comes from
46 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS46 samples · 2020–2024
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.