SwimSeasonCheck

Pool swim season in Stevens Point, WI

When can you swim in an outdoor pool in Stevens Point, WI?

An unheated pool in Stevens Point never reaches 78°F in a normal year. It peaks around 71°F in Aug. The air allows up to 4 swimmable months with a heater (Jun to Sep).

  1. J
  2. F
  3. M
  4. A
  5. M
  6. J
  7. J
  8. A
  9. S
  10. O
  11. N
  12. D

Heater options for a Stevens Point pool, side by side

OptionMonthsSwimmableEnergy/yrAll-in/yr
No heater0no month$0$0
Solar cover only0no month$0$50
Solar panels + cover3Jun to Aug$0$283
Heat pump + cover4Jun to Sep$281$831
Gas heater + cover4Jun to Sep$314$739

For a 450 sq ft pool held at 80°F, at WI prices of 19.1¢/kWh electricity and $11/Mcf gas. All-in spreads the purchase over the equipment's life.

The cheapest way to the full season in Stevens Point

Solar panels + cover: 3 of 4 possible months for about $283 a year all-in, which works out near $94 for each month it adds.

A solar cover alone adds no swim months here, so if you want a longer season you need a heater (why); still use one at night to hold the heat you pay for. If you get quotes, ask for gas as well as a heat pump: once the purchase price is counted, gas comes out cheaper all-in here (heat pump or gas).

Weather station: Stevens Pt, 2 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.

Stevens Point month by month: air, sun and pool water

MonthAir highAir avgSun kWh/m²/dayWater, unheatedWater, coveredHeat pump $Gas $
Jan24°15°1.717°23°––
Feb28°19°2.817°23°––
Mar40°30°3.926°32°––
Apr54°43°4.638°44°––
May67°56°5.552°58°––
Jun76°66°6.064°70°$111$127
Jul80°70°6.271°77°$32$38
Aug78°68°5.271°77°$31$36
Sep70°60°4.165°71°$107$113
Oct57°47°2.653°59°––
Nov42°34°1.739°45°––
Dec29°22°1.326°32°––

Heating costs most in Jun (about $111 with a heat pump, $127 with gas). Sunshine peaks in Jul at 6.2 kWh/m²/day (NASA satellite data, 4.9 km grid cell). Highlighted months are swimmable with no heater.

How Stevens Point compares with nearby cities

Stevens Point ranks 85 of 98 Wisconsin cities for unheated swim months, and no nearby city gets a longer unheated season.

CityDistanceUnheated monthsHeat pump monthsHeat pump $/yr
Plover, WI4 mi04$281
Wisconsin Rapids, WI16 mi04$284
Weston, WI25 mi03$183
Wausau, WI31 mi03$183
Marshfield, WI32 mi04$305
Greenville, WI52 mi04$215