Pool swim season in Naugatuck, CT
Swim season in Naugatuck without a heater, and with one
An unheated pool in Naugatuck 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 Naugatuck
| 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 | $456 | $1,006 |
| Gas heater + cover | 5 | May to Sep | $539 | $964 |
For a 450 sq ft pool held at 80°F, at CT prices of 27.5¢/kWh electricity and $17/Mcf gas. All-in spreads the purchase over the equipment's life.
The cheapest way to the full season in Naugatuck
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: Mt Carmel, 9.5 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.
Naugatuck 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 | 38° | 29° | 1.8 | 31° | 37° | – | – |
| Feb | 41° | 31° | 2.7 | 30° | 36° | – | – |
| Mar | 48° | 38° | 3.7 | 36° | 42° | – | – |
| Apr | 61° | 49° | 4.8 | 46° | 52° | – | – |
| May | 71° | 60° | 5.4 | 57° | 63° | $295 | $335 |
| Jun | 79° | 69° | 5.9 | 67° | 73° | $107 | $137 |
| Jul | 85° | 74° | 6.0 | 74° | 80° | – | – |
| Aug | 84° | 73° | 5.3 | 76° | 82° | – | – |
| Sep | 76° | 66° | 4.3 | 71° | 77° | $54 | $67 |
| Oct | 64° | 54° | 2.9 | 60° | 66° | – | – |
| Nov | 53° | 43° | 2.0 | 48° | 54° | – | – |
| Dec | 42° | 34° | 1.5 | 37° | 43° | – | – |
Heating costs most in May (about $295 with a heat pump, $335 with gas). Sunshine peaks in Jul at 6.0 kWh/m²/day (NASA satellite data, 37.4 km grid cell). Highlighted months are swimmable with no heater.
How Naugatuck compares with nearby cities
Naugatuck ranks 8 of 21 Connecticut cities for unheated swim months, and no nearby city gets a longer unheated season.
| City | Distance | Unheated months | Heat pump months | Heat pump $/yr |
|---|---|---|---|---|
| Waterbury, CT | 5 mi | 0 | 5 | $498 |
| Ansonia, CT | 10 mi | 0 | 4 | $210 |
| Derby, CT | 11 mi | 0 | 4 | $210 |
| Shelton, CT | 13 mi | 0 | 4 | $210 |
| Meriden, CT | 14 mi | 0 | 5 | $496 |
| New Haven, CT | 14 mi | 0 | 4 | $172 |