Pool swim season in Poplar Bluff, MO

Poplar Bluff, MO: how long the pool season really is

An unheated pool in Poplar Bluff reaches 78°F in Jul to Aug, about 2 months a year. The air allows up to 6 swimmable months with a heater (May to Oct).

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What each heater buys you in Poplar Bluff

For a 450 sq ft pool held at 80°F, at MO prices of 14.3¢/kWh electricity and $15/Mcf gas. All-in spreads the purchase over the equipment's life.

The cheapest way to the full season in Poplar Bluff

Solar panels + cover: 6 of 6 possible months for about $283 a year all-in, which works out near $71 for each month it adds.

Before you pay for any heater, buy a solar cover: on its own it adds 2 months here for about $50 a year (why a cover comes first). If you get quotes, ask for a heat pump sized to your pool's surface area; here it beats gas all-in (heat pump or gas).

Weather station: Poplar Bluff, 0.6 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.

Poplar Bluff month by month: air, sun and pool water

Heating costs most in Oct (about $67 with a heat pump, $132 with gas). Sunshine peaks in Jun at 6.7 kWh/m²/day (NASA satellite data, 30.3 km grid cell). Highlighted months are swimmable with no heater.

How Poplar Bluff compares with nearby cities

Poplar Bluff ranks 10 of 80 Missouri cities for unheated swim months; Blytheville nearby gets a longer season without a heater.