Pool swim season in Deming, NM
When can you swim in an outdoor pool in Deming, NM?
An unheated pool in Deming reaches 78°F in Jun to Sep, about 4 months a year. The air allows up to 8 swimmable months with a heater (Mar to Oct).
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What each heater buys you in Deming
| Option | Months | Swimmable | Energy/yr | All-in/yr |
|---|---|---|---|---|
| No heater | 4 | Jun to Sep | $0 | $0 |
| Solar cover only | 4 | Jun to Sep | $0 | $50 |
| Solar panels + cover | 7 | Apr to Oct | $0 | $283 |
| Heat pump + cover | 8 | Mar to Oct | $388 | $938 |
| Gas heater + cover | 8 | Mar to Oct | $453 | $878 |
For a 450 sq ft pool held at 80°F, at NM prices of 15.3¢/kWh electricity and $10/Mcf gas. All-in spreads the purchase over the equipment's life.
The cheapest way to the full season in Deming
Solar panels + cover: 7 of 8 possible months for about $283 a year all-in, which works out near $94 for each month it adds.
A solar cover alone adds no swim months here, so if you want a longer season you need a heater (why); still use one at night to hold the heat you pay for. 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: Deming, 0.7 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.
Deming 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 | 58° | 43° | 3.6 | 44° | 50° | – | – |
| Feb | 64° | 48° | 4.6 | 47° | 53° | – | – |
| Mar | 72° | 54° | 6.0 | 54° | 60° | $210 | $230 |
| Apr | 80° | 61° | 7.4 | 62° | 68° | $112 | $137 |
| May | 88° | 69° | 8.1 | 70° | 76° | $31 | $42 |
| Jun | 97° | 78° | 8.1 | 79° | 85° | – | – |
| Jul | 96° | 81° | 7.1 | 84° | 90° | – | – |
| Aug | 94° | 79° | 6.6 | 84° | 90° | – | – |
| Sep | 89° | 74° | 5.9 | 79° | 85° | – | – |
| Oct | 80° | 63° | 5.0 | 70° | 76° | $35 | $44 |
| Nov | 67° | 51° | 3.9 | 58° | 64° | – | – |
| Dec | 57° | 43° | 3.3 | 47° | 53° | – | – |
Heating costs most in Mar (about $210 with a heat pump, $230 with gas). Sunshine peaks in Jun at 8.1 kWh/m²/day (NASA satellite data, 35.4 km grid cell). Highlighted months are swimmable with no heater.
How Deming compares with nearby cities
Deming ranks 7 of 19 New Mexico cities for unheated swim months, and no nearby city gets a longer unheated season.
| City | Distance | Unheated months | Heat pump months | Heat pump $/yr |
|---|---|---|---|---|
| Las Cruces, NM | 56 mi | 4 | 8 | $343 |
| Sunland Park, NM | 74 mi | 4 | 8 | $333 |
| El Paso, TX | 83 mi | 4 | 8 | $224 |
| Socorro, TX | 98 mi | 4 | 8 | $224 |
| San Elizario, TX | 99 mi | 4 | 8 | $292 |
| Horizon City, TX | 100 mi | 4 | 8 | $224 |