Helmer_nelson Pond Deep Water Temperature
Helmer_nelson Pond Deep in Cook County, Minnesota averages about 67°F at the surface in summer — warmest in Jul (~70°F) and coldest in May (~47°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 71 field readings (2011–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Helmer_nelson Pond Deep warm enough to swim?
Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Want more than temperature? Helmer_nelson Pond Deep scored D on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Minnesota lakes
Summer average ~72°F
Summer average ~69°F
Summer average ~65°F
Summer average ~74°F
Summer average ~73°F
Summer average ~60°F
Explore water temperatures
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Frequently asked questions
What is the water temperature of Helmer_nelson Pond Deep?
Helmer_nelson Pond Deep has a typical summer surface temperature of about 67°F. It is usually warmest in July (around 70°F) and coldest in May (around 47°F). These are typical values by month from 71 EPA Water Quality Portal field readings (2011–2025), not a live reading.
When is Helmer_nelson Pond Deep warmest?
Surface water at Helmer_nelson Pond Deep is typically warmest in July, reaching about 70°F. Lake surface temperature lags air temperature by several weeks, so the warmest water usually arrives in mid-to-late summer even though the hottest air can come earlier.
Is Helmer_nelson Pond Deep warm enough to swim?
At its typical summer peak of about 67°F, Helmer_nelson Pond Deep rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Where does this Helmer_nelson Pond Deep water temperature data come from?
Every temperature on this page is a typical (climatological) value computed from real surface-water field readings collected by state and federal agencies and published through the EPA Water Quality Portal — 71 readings from 2 monitoring stations between 2011 and 2025. They describe what is typical for each month, not the temperature right now.
About this data
Water temperatures are a climatology — the typical value for each month, averaged from real surface-water field readings collected by state and federal agencies and published through the EPA Water Quality Portal. They tell you what to expect, not the temperature at this moment. Actual conditions vary with recent weather, depth, and time of day.