Pool swim season in Bowling Green, KY
When can you swim in an outdoor pool in Bowling Green, KY?
An unheated pool in Bowling Green 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).
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Heater options for a Bowling Green pool, side by side
| Option | Months | Swimmable | Energy/yr | All-in/yr |
|---|---|---|---|---|
| No heater | 2 | Jul to Aug | $0 | $0 |
| Solar cover only | 4 | Jun to Sep | $0 | $50 |
| Solar panels + cover | 6 | May to Oct | $0 | $283 |
| Heat pump + cover | 7 | Apr to Oct | $287 | $837 |
| Gas heater + cover | 7 | Apr to Oct | $547 | $972 |
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 Bowling Green
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: Bowling Green Warren County Airport, 1 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.
Bowling Green month by month: air, sun and pool water
| Month | Air high | Air avg | Sun kWh/m²/day | Water, unheated | Water, covered | Heat pump $ | Gas $ |
|---|---|---|---|---|---|---|---|
| Jan | 46° | 37° | 2.2 | 38° | 44° | – | – |
| Feb | 51° | 41° | 2.8 | 39° | 45° | – | – |
| Mar | 60° | 49° | 3.9 | 46° | 52° | – | – |
| Apr | 71° | 59° | 5.2 | 56° | 62° | $158 | $292 |
| May | 79° | 68° | 5.7 | 66° | 72° | $61 | $128 |
| Jun | 87° | 76° | 6.3 | 75° | 81° | – | – |
| Jul | 90° | 80° | 6.1 | 81° | 87° | – | – |
| Aug | 89° | 79° | 5.6 | 82° | 88° | – | – |
| Sep | 83° | 71° | 4.7 | 77° | 83° | – | – |
| Oct | 72° | 60° | 3.6 | 66° | 72° | $68 | $127 |
| Nov | 59° | 48° | 2.6 | 54° | 60° | – | – |
| Dec | 49° | 41° | 1.9 | 43° | 49° | – | – |
Heating costs most in Apr (about $158 with a heat pump, $292 with gas). Sunshine peaks in Jun at 6.3 kWh/m²/day (NASA satellite data, 53.3 km grid cell). Highlighted months are swimmable with no heater.
How Bowling Green compares with nearby cities
Bowling Green ranks 2 of 42 Kentucky cities for unheated swim months, and no nearby city gets a longer unheated season.
| City | Distance | Unheated months | Heat pump months | Heat pump $/yr |
|---|---|---|---|---|
| Franklin, KY | 19 mi | 2 | 6 | $140 |
| Portland, TN | 27 mi | 2 | 6 | $136 |
| Glasgow, KY | 28 mi | 2 | 7 | $271 |
| White House, TN | 38 mi | 2 | 6 | $140 |
| Gallatin, TN | 41 mi | 2 | 6 | $183 |
| Springfield, TN | 41 mi | 2 | 6 | $141 |