Reference annual cost
$295
$25 average per month · 920 kWh/year
ArcticSoak Score 80/100
Modeled planning range$155–$493
Peak monthJuly
Electricity input32.1¢/kWh
Vs. indexed-city median54% 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 | 483 kWh | $13/mo | $155/yr |
| Reference consumer setup | 920 kWh | $25/mo | $295/yr |
| Lightly insulated / exposed | 1,535 kWh | $41/mo | $493/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 | $281/year |
| 50°F | $295/year |
| 45°F | $312/year |
| 39°F | $336/year |
Data provenance
- Climate
- NOAA 1991–2020 U.S. Climate Normals
- Station
- PORTLAND INTL JETPORT, ME US (USW00014764)
- 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 | 16–32°F | 67 kWh | $21 |
| February | 17–35°F | 60 kWh | $19 |
| March | 26–42°F | 67 kWh | $21 |
| April | 35–54°F | 66 kWh | $21 |
| May | 46–64°F | 77 kWh | $25 |
| June | 55–74°F | 89 kWh | $29 |
| July | 61–80°F | 104 kWh | $34 |
| August | 60–79°F | 102 kWh | $33 |
| September | 52–71°F | 84 kWh | $27 |
| October | 41–60°F | 72 kWh | $23 |
| November | 32–48°F | 64 kWh | $21 |
| December | 22–38°F | 67 kWh | $21 |
Cite this page
ArcticSoak. “Cold Plunge Cost in Portland, ME.” Model 2.0.0, dataset 2026-10-26. Accessed [date]. https://arcticsoak.com/cities/portland-me/
Embed this city card
<iframe src="https://arcticsoak.com/embed/city/?city=portland-me" title="Cold plunge cost in Portland, ME" width="420" height="260" loading="lazy"></iframe><p><a href="https://arcticsoak.com/cities/portland-me/">Cold plunge cost in Portland, ME — ArcticSoak</a></p>