Pool swim season in Western Springs, IL

Swim season in Western Springs without a heater, and with one

An unheated pool in Western Springs reaches 78°F in Aug, about 1 month a year. The air allows up to 5 swimmable months with a heater (May 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 Western Springs

For a 450 sq ft pool held at 80°F, at IL prices of 19.2¢/kWh electricity and $11/Mcf gas. All-in spreads the purchase over the equipment's life.

The cheapest way to the full season in Western Springs

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: Little Red School Hse, 6.6 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.

Western Springs month by month: air, sun and pool water

Heating costs most in May (about $181 with a heat pump, $203 with gas). Sunshine peaks in Jul at 6.2 kWh/m²/day (NASA satellite data, 47.3 km grid cell). Highlighted months are swimmable with no heater.

How Western Springs compares with nearby cities

Western Springs ranks 35 of 225 Illinois cities for unheated swim months, and no nearby city gets a longer unheated season.