Western Stump Lake Water Temperature
Western Stump Lake in Nelson County, North Dakota averages about 61°F at the surface in summer — warmest in Jul (~67°F) and coldest in Jan (~32°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 704 field readings (2010–2023) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Western Stump Lake warm enough to swim?
Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Want more than temperature? Western Stump Lake scored F on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby North Dakota lakes
Summer average ~63°F
Summer average ~58°F
Summer average ~67°F
Summer average ~70°F
Summer average ~66°F
Summer average ~67°F
Explore water temperatures
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Frequently asked questions
What is the water temperature of Western Stump Lake?
Western Stump Lake has a typical summer surface temperature of about 61°F. It is usually warmest in July (around 67°F) and coldest in January (around 32°F). These are typical values by month from 704 EPA Water Quality Portal field readings (2010–2023), not a live reading.
When is Western Stump Lake warmest?
Surface water at Western Stump Lake is typically warmest in July, reaching about 67°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 Western Stump Lake warm enough to swim?
At its typical summer peak of about 61°F, Western Stump Lake rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Where does this Western Stump 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 — 704 readings from 1 monitoring station between 2010 and 2023. 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.