Reference annual cost
$326
$27 average per month · 1,096 kWh/year
ArcticSoak Score 64/100
Modeled planning range$168–$571
Peak monthAugust
Electricity input29.8¢/kWh
Vs. indexed-city median70% above
Scenario range
One city, three plausible setups
These are sensitivity scenarios—not a confidence interval. The reference setup is the ranking standard.
| Setup | Annual energy | Monthly average | Annual cost |
|---|---|---|---|
| Efficient insulated | 566 kWh | $14/mo | $168/yr |
| Reference consumer setup | 1,096 kWh | $27/mo | $326/yr |
| Lightly insulated / exposed | 1,918 kWh | $48/mo | $571/yr |
What colder targets change
Lower settings increase positive temperature degree-hours and chiller runtime. The same reference configuration is held constant.
| Target | Reference cost |
|---|---|
| 55°F | $296/year |
| 50°F | $326/year |
| 45°F | $357/year |
| 39°F | $395/year |
Data provenance
- Climate
- NOAA 1991–2020 U.S. Climate Normals
- Station
- SAN DIEGO LINDBERGH FLD, CA US (USW00023188)
- Electricity
- U.S. EIA residential average retail price, 2026-08; state-level input
- Model
- ArcticSoak 2.0.0; generated 2026-10-26T18:40:35+00:00
Reference scenario
Monthly climate and cost profile
Daily low/high normals become positive cooling degree-hours; provisional pages use approximate profiles until NOAA retrieval succeeds.
| Month | Normal low–high | Energy | Cost |
|---|---|---|---|
| January | 50–66°F | 82 kWh | $24 |
| February | 52–66°F | 75 kWh | $22 |
| March | 54–67°F | 86 kWh | $26 |
| April | 57–69°F | 87 kWh | $26 |
| May | 60–70°F | 93 kWh | $28 |
| June | 63–72°F | 94 kWh | $28 |
| July | 66–75°F | 104 kWh | $31 |
| August | 68–77°F | 107 kWh | $32 |
| September | 66–77°F | 103 kWh | $31 |
| October | 62–75°F | 99 kWh | $29 |
| November | 55–71°F | 86 kWh | $26 |
| December | 50–66°F | 81 kWh | $24 |
Cite this page
ArcticSoak. “Cold Plunge Cost in San Diego, CA.” Model 2.0.0, dataset 2026-10-26. Accessed [date]. https://arcticsoak.com/cities/san-diego-ca/
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