Pool swim season in Byram, MS

Byram, MS: how long the pool season really is

An unheated pool in Byram reaches 78°F in Jun to Sep, about 4 months a year. The air allows up to 7 swimmable months with a heater (Apr to Oct).

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 Byram

For a 450 sq ft pool held at 80°F, at MS prices of 15.1¢/kWh electricity and $17/Mcf gas. All-in spreads the purchase over the equipment's life.

The cheapest way to the full season in Byram

Solar cover only: 6 of 7 possible months for about $50 a year all-in, which works out near $25 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: Jackson Hawkins Field, 10.7 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.

Byram month by month: air, sun and pool water

Heating costs most in Apr (about $80 with a heat pump, $179 with gas). Sunshine peaks in Jun at 6.6 kWh/m²/day (NASA satellite data, 39.7 km grid cell). Highlighted months are swimmable with no heater.

How Byram compares with nearby cities

Byram ranks 9 of 41 Mississippi cities for unheated swim months, and no nearby city gets a longer unheated season.