Pool swim season in Essex Junction, VT

Swim season in Essex Junction without a heater, and with one

An unheated pool in Essex Junction never reaches 78°F in a normal year. It peaks around 72°F in Aug. The air allows up to 4 swimmable months with a heater (Jun to Sep).

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 Essex Junction

For a 450 sq ft pool held at 80°F, at VT prices of 23.9¢/kWh electricity and $18/Mcf gas. All-in spreads the purchase over the equipment's life.

The cheapest way to the full season in Essex Junction

Solar panels + cover: 4 of 4 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 1 month 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: Essex Junction 1 N, 1.2 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.

Essex Junction month by month: air, sun and pool water

Heating costs most in Jun (about $128 with a heat pump, $197 with gas). Sunshine peaks in Jul at 5.7 kWh/m²/day (NASA satellite data, 30.6 km grid cell). Highlighted months are swimmable with no heater.

How Essex Junction compares with nearby cities

Essex Junction ranks 3 of 4 Vermont cities for unheated swim months, and no nearby city gets a longer unheated season.