John Martin Reservoir State Park

Availability

Each day shows how many of this campground’s sites are open.

About this spot

Typical weather

John Martin Reservoir

Average water temperature
Average water temperature for John Martin Reservoir, January through DecemberEach point shows the monthly average water temperature in degrees Fahrenheit.42°JJanuary: average water temperature 42°F43°FFebruary: average water temperature 43°F48°MMarch: average water temperature 48°F54°AApril: average water temperature 54°F61°MMay: average water temperature 61°F67°JJune: average water temperature 67°F73°JJuly: average water temperature 73°F73°AAugust: average water temperature 73°F70°SSeptember: average water temperature 70°F58°OOctober: average water temperature 58°F48°NNovember: average water temperature 48°F41°DDecember: average water temperature 41°F

Water: Water Quality Portal — 44 field-sample stations