Reference annual cost
$275
$23 average per month · 1,059 kWh/year
ArcticSoak Score 70/100
Modeled planning range$142–$480
Peak monthJuly
Electricity input26.0¢/kWh
Vs. indexed-city median44% 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 | 547 kWh | $12/mo | $142/yr |
| Reference consumer setup | 1,059 kWh | $23/mo | $275/yr |
| Lightly insulated / exposed | 1,848 kWh | $40/mo | $480/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 | $258/year |
| 50°F | $275/year |
| 45°F | $295/year |
| 39°F | $322/year |
Data provenance
- Climate
- NOAA 1991–2020 U.S. Climate Normals
- Station
- NATL ARBORETUM DC, MD US (USC00186350)
- 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 | 28–45°F | 67 kWh | $17 |
| February | 30–48°F | 60 kWh | $16 |
| March | 36–56°F | 69 kWh | $18 |
| April | 46–68°F | 78 kWh | $20 |
| May | 57–77°F | 97 kWh | $25 |
| June | 66–85°F | 113 kWh | $29 |
| July | 71–90°F | 128 kWh | $33 |
| August | 69–88°F | 124 kWh | $32 |
| September | 62–82°F | 104 kWh | $27 |
| October | 49–70°F | 84 kWh | $22 |
| November | 39–58°F | 69 kWh | $18 |
| December | 32–49°F | 67 kWh | $17 |
Cite this page
ArcticSoak. “Cold Plunge Cost in Washington, DC.” Model 2.0.0, dataset 2026-10-26. Accessed [date]. https://arcticsoak.com/cities/washington-dc/
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