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How Much to Run a Dehumidifier in Minnesota? $0.09/Hr, $46/Summer

Running dehumidifier in Minnesota costs about $0.09 an hour and roughly $46 for the summer — 500 W for 5.8 hours a day at 17.45¢/kWh.

$0.09per hour
$46per summer, 92 days
460cooling degree-days, NOAA

· Source: EIA Electric Power Monthly Table 5.6.A (July 2026 data) · next EIA update ~Oct 23

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Dehumidifier in Minnesota: watts ÷ 1,000 × hours × days × rate. Estimate, not a quote.
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Per hour
$0.09 at 17.45¢/kWh
Per summer
$46 (92 days)
Hours per day
5.8 (NOAA state cooling degree-days-scaled)
Degree-days used
460 (NOAA CPC state, population-weighted)
Wattage
500 W (typical 300–800)
Minnesota rate
17.45¢ (July 2026)
Rank of 20 cold states
15 (15th most expensive)

Why this number

Running dehumidifier in Minnesota costs about $0.09 an hour and roughly $46 for the summer — a 500 W unit for 5.8 hours a day over 92 days (June–August) at Minnesota’s July 2026 average of 17.45¢/kWh. The hours are the national 12.0 h/day baseline scaled by NOAA CPC state population-weighted CDD, June–August 2026 (460 vs the CONUS 958); your utility’s rate moves it (table below), and the calculator takes your own wattage, hours and rate.

Minnesota runs dehumidifier less than the national baseline in June–August — 5.8 hours a day on the NOAA state degree-day scaling used here, against 12.0 nationally — and pays 17.45¢/kWh for it. Those two numbers, times 500 W, are the whole $46.

Dehumidifier cost in Minnesota by hours per day — per day / per summer

Dehumidifier cost per day and per summer in Minnesota at 1 to 12 hours a day, at the state average rate and its largest utilities' EIA-861 prices
Hours per day Minnesota avg 17.45¢ Northern States Power 17.0¢ Adjustment 2024 14.1¢ Connexus Energy 13.7¢
1 h $0.09 / $8 $0.09 / $8 $0.07 / $6 $0.07 / $6
2 h $0.17 / $16 $0.17 / $16 $0.14 / $13 $0.14 / $13
4 h $0.35 / $32 $0.34 / $31 $0.28 / $26 $0.27 / $25
6 h $0.52 / $48 $0.51 / $47 $0.42 / $39 $0.41 / $38
8 h $0.70 / $64 $0.68 / $63 $0.56 / $52 $0.55 / $50
12 h $1.05 / $96 $1.02 / $94 $0.85 / $78 $0.82 / $76

What Minnesota’s utilities charge for it

Minnesota's largest electric utilities and what dehumidifier costs per hour and per summer at each one's average price
Utility Residential customers ¢/kWh (EIA-861 2024) Per hour Per summer at 5.8 h/day
Northern States Power Co - Minnesota 1,230,057 17.0¢ $0.09 $45
Adjustment 2024 251,565 14.1¢ $0.07 $37
Connexus Energy 134,095 13.7¢ $0.07 $36

What the numbers say about dehumidifier in Minnesota

Minnesota logged 460 population-weighted cooling degree-days over June–August (NOAA CPC state series), 48% of the CONUS figure of 958, which is why this page runs dehumidifier 5.8 hours a day against the national 12.0 — 6.2 hours less. At Minnesota’s July 2026 rate of 17.45¢/kWh that makes it the 15th most expensive of the 20 cold states for dehumidifier: $46 for the 92-day summer, against Montana’s $21 and Alaska’s $103. Northern States Power Co - Minnesota, Minnesota’s largest utility with 1,230,057 residential customers, averages 17.0¢ — $45 for the same hours — while Connexus Energy at 13.7¢ comes to $36, a $9 spread on identical use. Minnesota’s July 2026 rate of 17.45¢ sets the $0.09 per hour; its winter average of 15.41¢ is 2.04¢ lower, a difference that matters for heating loads but not for dehumidifier use in June–August.

Frequently asked questions

How much does it cost to run dehumidifier per hour in Minnesota?

$0.09 an hour for a 500 W unit at Minnesota’s July 2026 average of 17.45¢/kWh (500 ÷ 1,000 × 0.1745); at Northern States Power Co - Minnesota’s 17.0¢ it is $0.09.

How much does dehumidifier cost for the whole summer in Minnesota?

About $46: 500 W × 5.8 hours a day × 92 days (June–August) × 17.45¢. The hours are the national 12.0 h/day scaled by NOAA CPC state population-weighted CDD, June–August 2026 (460 against the CONUS 958); enter your own hours above for your own figure.

Is dehumidifier expensive to run in Minnesota compared with other cold states?

Minnesota is the 15th most expensive of the 20 cold states on this site at $46 a summer; the range runs from Montana ($21) to Alaska ($103), driven almost entirely by the electricity rate.

How we calculated this

Worked for dehumidifier in Minnesota: 500 W ÷ 1,000 × 0.1745 $/kWh = $0.09 per hour; hours per day = 12.0 × (460 ÷ 958) = 5.8; 500 ÷ 1,000 × 5.8 × 92 × 0.1745 = $46 for the summer. Rate: EIA Electric Power Monthly 5.6.A (July 2026); degree-days: NOAA CPC state population-weighted CDD, June–August 2026, against the CONUS total; utility prices: EIA-861 2024.

Sources: U.S. Energy Information Administration (EIA) electricity rates · DSIRE incentive records · public IRS/OBBBA guidance. Figures are modeled estimates, not quotes or tax advice. See our methodology.

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