Pool swim season in Spring Hill, TN

Spring Hill, TN: how long the pool season really is

An unheated pool in Spring Hill reaches 78°F in Jul to Aug, about 2 months a year. The air allows up to 7 swimmable months with a heater (Apr to Oct).

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 Spring Hill

For a 450 sq ft pool held at 80°F, at TN prices of 13.8¢/kWh electricity and $12/Mcf gas. All-in spreads the purchase over the equipment's life.

The cheapest way to the full season in Spring Hill

Solar panels + cover: 6 of 7 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: Thompson Station, 1.5 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.

Spring Hill month by month: air, sun and pool water

Heating costs most in Apr (about $147 with a heat pump, $234 with gas). Sunshine peaks in Jun at 6.4 kWh/m²/day (NASA satellite data, 46.6 km grid cell). Highlighted months are swimmable with no heater.

How Spring Hill compares with nearby cities

Spring Hill ranks 15 of 65 Tennessee cities for unheated swim months, and no nearby city gets a longer unheated season.