Pool swim season in Franklin Park, PA
Swim season in Franklin Park without a heater, and with one
An unheated pool in Franklin Park never reaches 78°F in a normal year. It peaks around 76°F in Aug. The air allows up to 5 swimmable months with a heater (May to Sep).
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What each heater buys you in Franklin Park
| Option | Months | Swimmable | Energy/yr | All-in/yr |
|---|---|---|---|---|
| No heater | 0 | no month | $0 | $0 |
| Solar cover only | 2 | Jul to Aug | $0 | $50 |
| Solar panels + cover | 4 | Jun to Sep | $0 | $283 |
| Heat pump + cover | 5 | May to Sep | $290 | $840 |
| Gas heater + cover | 5 | May to Sep | $407 | $832 |
For a 450 sq ft pool held at 80°F, at PA prices of 21.1¢/kWh electricity and $15/Mcf gas. All-in spreads the purchase over the equipment's life.
The cheapest way to the full season in Franklin Park
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 2 months here for about $50 a year (why a cover comes first). 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: Emsworth L/D Ohio Rvr, 6.1 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.
Franklin Park 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 | 39° | 30° | 1.6 | 31° | 37° | – | – |
| Feb | 42° | 32° | 2.4 | 30° | 36° | – | – |
| Mar | 51° | 40° | 3.4 | 36° | 42° | – | – |
| Apr | 64° | 52° | 4.6 | 48° | 54° | – | – |
| May | 74° | 62° | 5.4 | 59° | 65° | $193 | $263 |
| Jun | 81° | 70° | 5.9 | 69° | 75° | $61 | $92 |
| Jul | 85° | 75° | 5.9 | 75° | 81° | – | – |
| Aug | 84° | 73° | 5.3 | 76° | 82° | – | – |
| Sep | 78° | 66° | 4.3 | 71° | 77° | $36 | $52 |
| Oct | 66° | 55° | 2.9 | 60° | 66° | – | – |
| Nov | 54° | 44° | 2.0 | 48° | 54° | – | – |
| Dec | 43° | 35° | 1.3 | 37° | 43° | – | – |
Heating costs most in May (about $193 with a heat pump, $263 with gas). Sunshine peaks in Jul at 5.9 kWh/m²/day (NASA satellite data, 35.4 km grid cell). Highlighted months are swimmable with no heater.
How Franklin Park compares with nearby cities
Franklin Park ranks 26 of 68 Pennsylvania cities for unheated swim months, and no nearby city gets a longer unheated season.
| City | Distance | Unheated months | Heat pump months | Heat pump $/yr |
|---|---|---|---|---|
| Pittsburgh, PA | 12 mi | 0 | 5 | $299 |
| Wilkinsburg, PA | 16 mi | 0 | 5 | $301 |
| Baldwin, PA | 17 mi | 0 | 5 | $299 |
| Whitehall, PA | 17 mi | 0 | 5 | $299 |
| Munhall, PA | 17 mi | 0 | 5 | $301 |
| New Kensington, PA | 18 mi | 0 | 5 | $324 |