Pool swim season in Brigham City, UT
Swim season in Brigham City without a heater, and with one
An unheated pool in Brigham City never reaches 78°F in a normal year. It peaks around 77°F in Aug. The air allows up to 5 swimmable months with a heater (May to Sep).
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Heater options for a Brigham City pool, side by side
| Option | Months | Swimmable | Energy/yr | All-in/yr |
|---|---|---|---|---|
| No heater | 0 | no month | $0 | $0 |
| Solar cover only | 2 | Jul to Aug | $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 | $339 | $764 |
For a 450 sq ft pool held at 80°F, at UT prices of 13.2¢/kWh electricity and $10/Mcf gas. All-in spreads the purchase over the equipment's life.
The cheapest way to the full season in Brigham City
Solar panels + cover: 4 of 5 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 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: Brigham City Waste Plt, 1.3 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.
Brigham City 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 | 36° | 27° | 1.7 | 27° | 33° | – | – |
| Feb | 43° | 32° | 2.7 | 30° | 36° | – | – |
| Mar | 54° | 42° | 4.2 | 39° | 45° | – | – |
| Apr | 62° | 49° | 5.7 | 48° | 54° | – | – |
| May | 71° | 58° | 6.7 | 57° | 63° | $145 | $203 |
| Jun | 82° | 66° | 7.7 | 67° | 73° | $56 | $88 |
| Jul | 91° | 74° | 7.6 | 75° | 81° | – | – |
| Aug | 89° | 72° | 6.7 | 77° | 83° | – | – |
| Sep | 79° | 63° | 5.3 | 70° | 76° | $32 | $48 |
| Oct | 65° | 50° | 3.7 | 57° | 63° | – | – |
| Nov | 50° | 38° | 2.3 | 44° | 50° | – | – |
| Dec | 38° | 29° | 1.5 | 32° | 38° | – | – |
Heating costs most in May (about $145 with a heat pump, $203 with gas). Sunshine peaks in Jun at 7.7 kWh/m²/day (NASA satellite data, 37.4 km grid cell). Highlighted months are swimmable with no heater.
How Brigham City compares with nearby cities
Brigham City ranks 59 of 67 Utah cities for unheated swim months; Pleasant View, North Ogden, Tremonton nearby get a longer season without a heater.
| City | Distance | Unheated months | Heat pump months | Heat pump $/yr |
|---|---|---|---|---|
| Pleasant View, UT | 13 mi | 2 | 5 | $156 |
| Hyrum, UT | 14 mi | 0 | 4 | $162 |
| North Ogden, UT | 14 mi | 1 | 4 | $64 |
| Tremonton, UT | 16 mi | 1 | 5 | $208 |
| Logan, UT | 19 mi | 0 | 4 | $136 |
| Ogden, UT | 20 mi | 2 | 5 | $155 |