Dahler Lake Water Temperature
Dahler Lake in Crow Wing County, Minnesota averages about 72°F at the surface in summer — warmest in Aug (~74°F) and coldest in May (~65°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 23 field readings (2023–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Dahler Lake warm enough to swim?
Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Want more than temperature? Dahler Lake scored B on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
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Frequently asked questions
What is the water temperature of Dahler Lake?
Dahler Lake has a typical summer surface temperature of about 72°F. It is usually warmest in August (around 74°F) and coldest in May (around 65°F). These are typical values by month from 23 EPA Water Quality Portal field readings (2023–2025), not a live reading.
When is Dahler Lake warmest?
Surface water at Dahler Lake is typically warmest in August, reaching about 74°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 Dahler Lake warm enough to swim?
At its typical summer peak of about 72°F, Dahler Lake rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Where does this Dahler Lake 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 — 23 readings from 1 monitoring station between 2023 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.