Pool swim season in Paris, KY

Paris, KY: how long the pool season really is

An unheated pool in Paris never reaches 78°F in a normal year. It peaks around 78°F in Aug. The air allows up to 5 swimmable months with a heater (May 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

What each heater buys you in Paris

For a 450 sq ft pool held at 80°F, at KY prices of 14.2¢/kWh electricity and $14/Mcf gas. All-in spreads the purchase over the equipment's life.

The cheapest way to the full season in Paris

Solar panels + cover: 4 of 5 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 3 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: Cynthiana, 12.3 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.

Paris month by month: air, sun and pool water

Heating costs most in May (about $102 with a heat pump, $202 with gas). Sunshine peaks in Jun at 6.3 kWh/m²/day (NASA satellite data, 38.8 km grid cell). Highlighted months are swimmable with no heater.

How Paris compares with nearby cities

Paris ranks 35 of 42 Kentucky cities for unheated swim months; Lexington-Fayette urban county, Nicholasville, Frankfort nearby get a longer season without a heater.