Little Hubert Lake
Little Hubert Lake in Crow Wing County, Minnesota has a water quality grade of A (Excellent). Water clarity: 18 ft visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 2.1 µg/L. Maximum depth: 41 ft. Surface area: 193.94 acres.
- Clarity
- 18 ft
- Typical in August
- 74°F
- Max depth
- 41 ft
- Area
- 194 acres
- Type
- Oligotrophic
- Trend
- ↑ Improving
- Public access
- No
- Ice-out
- Apr 18
- Open water
- 216 days
Next lake in Crow Wing County
Little Hubert Lake is a 194-acre cold, clear oligotrophic lake in Crow Wing County, Minnesota with a maximum depth of 41 feet. Water quality is graded A based on 2 sampling years through 2025. Overall water quality is improving over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted. Compared to the 84 other monitored lakes in Crow Wing County, Little Hubert Lake ranks #29 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-29. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Crystal clear, you can see 18 ft down. Phosphorus level: 14 µg/L. Chlorophyll-a: 2.1 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 18 ft | Not graded |
| Phosphorus | 14 µg/L | Good |
| Chlorophyll-a (Algae) | 2.1 µg/L | Good |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Little Hubert Lake
Compare lakeside cabins, hotels, and vacation rentals near Little Hubert Lake in Crow Wing County, Minnesota — 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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Water Temperature
Little Hubert Lake typically sits around 74°F at the surface in August. Summer average is about 75°F. Usually warmest in Jul (about 76°F) and coldest in May (about 67°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 23 field readings (2021–2025) via the EPA Water Quality Portal. See the full Little Hubert Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 41 ft |
| Surface Area | 194 acres |
| Shoreline Length | 2.5 mi |
| Littoral Zone | 83% |
| Public Access | No |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fishing Little Hubert Lake
DNR Fisheries Survey Summary
1 survey on file from MN DNR Fisheries. Most recent: 1982-06-28 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 41.25 | 0.2 lb |
| Yellow Perch | 33.00 | 0.1 lb |
| Black Crappie | 18.71 | 0.08 lb |
| Northern Pike | 8.96 | 1.43 lb |
| Pumpkinseed | 8.71 | 0.22 lb |
| Yellow Bass | 5.38 | 0.52 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
From the 1982-06-28 survey
Test netting indicated a very high population of Northern Pike, Yellow Perch, Black Crappie, and Bluegills. The Bluegills and Black Crappie appear to be stunted. Walleyes and Largemouth Bass also were present in Little Hubert Lake.
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Little Hubert Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — Little HubertFisheries Lake Survey · MN DNR LakeFinder
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.158 m/yr | 6 |
| Phosphorus | → Stable | +0.23 µg/L/yr | 6 |
| Chlorophyll-a | → Stable | -0.01 µg/L/yr | 6 |
Ice Season
Historical ice data from Minnesota DNR (17 observations).
Estimated open water season: 216 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2024-03-16 (2024) | 2022-05-02 (2022) |
| Ice-In | 2018-11-10 (2018) | 2024-12-03 (2024) |
Most recent ice-out: 2025-04-14
EPA Impairment Status
Little Hubert Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN18-0375-00 · Official waterbody report · Matched by proximity (2.03 km)
County Ranking
Ranked #29 of 85 lakes in Crow Wing County
Nearby Lakes in Crow Wing County
Frequently asked questions about Little Hubert Lake
What is the water quality grade for Little Hubert Lake?
- Little Hubert Lake in Crow Wing County, Minnesota has a water quality grade of A (Excellent). Water clarity: 18 ft visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 2.1 µg/L. Maximum depth: 41 ft. Surface area: 193.94 acres.
Is Little Hubert Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Little Hubert Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 2.1 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Little Hubert Lake?
- Little Hubert Lake typically sits around 74°F at the surface in August, from 23 EPA Water Quality Portal field readings (2021–2025). That is a typical value for the month, not a live reading.
How deep is Little Hubert Lake?
- Little Hubert Lake has a maximum depth of 41 feet. The lake covers 193.94 acres.
When does Little Hubert Lake thaw?
- Little Hubert Lake typically has ice-out around Apr 18. Ice typically forms around Nov 20. The open water season is approximately 216 days.
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Where this data comes from
80 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA80 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- 10200 H 2 ~ Chlorophyll a-b-c Determination by spectrophotometer
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Ice data from Minnesota DNR Climate