Pool swim season in Guttenberg, NJ
Swim season in Guttenberg without a heater, and with one
An unheated pool in Guttenberg reaches 78°F in Aug, about 1 month a year. The air allows up to 5 swimmable months with a heater (May to Sep).
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Heater options for a Guttenberg pool, side by side
| Option | Months | Swimmable | Energy/yr | All-in/yr |
|---|---|---|---|---|
| No heater | 1 | Aug | $0 | $0 |
| Solar cover only | 3 | Jul to Sep | $0 | $50 |
| Solar panels + cover | 4 | Jun to Sep | $0 | $283 |
| Heat pump + cover | 5 | May to Sep | $233 | $783 |
| Gas heater + cover | 5 | May to Sep | $275 | $700 |
For a 450 sq ft pool held at 80°F, at NJ prices of 24.1¢/kWh electricity and $14/Mcf gas. All-in spreads the purchase over the equipment's life.
The cheapest way to the full season in Guttenberg
Solar panels + cover: 4 of 5 possible months for about $283 a year all-in, which works out near $94 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: Ny City Cntrl Park, 2.1 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.
Guttenberg 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 | 40° | 34° | 1.9 | 35° | 41° | – | – |
| Feb | 42° | 36° | 2.8 | 35° | 41° | – | – |
| Mar | 50° | 43° | 3.7 | 40° | 46° | – | – |
| Apr | 62° | 54° | 4.9 | 50° | 56° | – | – |
| May | 71° | 63° | 5.4 | 61° | 67° | $188 | $217 |
| Jun | 80° | 72° | 6.0 | 71° | 77° | $44 | $57 |
| Jul | 85° | 78° | 6.0 | 78° | 84° | – | – |
| Aug | 83° | 76° | 5.2 | 79° | 85° | – | – |
| Sep | 76° | 69° | 4.3 | 74° | 80° | $1 | $1 |
| Oct | 65° | 58° | 3.0 | 64° | 70° | – | – |
| Nov | 54° | 48° | 2.2 | 52° | 58° | – | – |
| Dec | 44° | 39° | 1.6 | 42° | 48° | – | – |
Heating costs most in May (about $188 with a heat pump, $217 with gas). Sunshine peaks in Jul at 6.0 kWh/m²/day (NASA satellite data, 53.0 km grid cell). Highlighted months are swimmable with no heater.
How Guttenberg compares with nearby cities
Guttenberg ranks 51 of 116 New Jersey cities for unheated swim months; Ridgefield nearby gets a longer season without a heater.
| City | Distance | Unheated months | Heat pump months | Heat pump $/yr |
|---|---|---|---|---|
| West New York, NJ | 1 mi | 1 | 5 | $233 |
| Fairview, NJ | 2 mi | 1 | 5 | $233 |
| Cliffside Park, NJ | 2 mi | 1 | 5 | $227 |
| Union City, NJ | 2 mi | 1 | 5 | $233 |
| Edgewater, NJ | 3 mi | 1 | 5 | $227 |
| Ridgefield, NJ | 3 mi | 2 | 5 | $232 |