Ranked from NOAA 1991-2020 Climate Normals
Highest Cooling Demand in Washington
Cooling degree days are the mirror of heating degree days: how far and how long the temperature sits above 65°F. In the counties at the top of this list, cooling is the largest single line on the summer electricity bill. Figures are NOAA 1991-2020 Climate Normals from the weather station nearest each county seat, so they describe a thirty-year average rather than any single year.
Washington ranked
| # | County | Cooling degree days | Summer high | Monthly to own |
|---|---|---|---|---|
| 1 | Walla Walla County | 936 | 90.1°F | $2,864 |
| 2 | Asotin County | 913 | 90.8°F | $2,208 |
| 3 | Douglas County | 843 | 89.3°F | $3,019 |
| 4 | Grant County | 843 | 89.3°F | $2,140 |
| 5 | Benton County | 788 | 92.5°F | $2,786 |
| 6 | Okanogan County | 703 | 89.4°F | $2,188 |
| 7 | Franklin County | 610 | 89.6°F | $2,613 |
| 8 | Yakima County | 606 | 89.9°F | $2,177 |
| 9 | Adams County | 590 | 89.2°F | $1,972 |
| 10 | Kittitas County | 568 | 86.5°F | $3,386 |
| 11 | Columbia County | 564 | 87.6°F | $2,012 |
| 12 | Spokane County | 507 | 87.1°F | $2,817 |
| 13 | Cowlitz County | 427 | 82.3°F | $2,779 |
| 14 | Garfield County | 396 | 85.1°F | $1,671 |
| 15 | Klickitat County | 323 | 86.1°F | $2,865 |
| 16 | Lincoln County | 290 | 85.4°F | $2,064 |
| 17 | Whitman County | 284 | 83.4°F | $2,466 |
| 18 | Stevens County | 261 | 86.3°F | $2,323 |
| 19 | Chelan County | 219 | 81.9°F | $3,353 |
| 20 | Pend Oreille County | 217 | 84.2°F | $2,324 |
| 21 | Skamania County | 207 | 81.8°F | $3,477 |
| 22 | Kitsap County | 193 | 77.3°F | $3,740 |
| 23 | Ferry County | 167 | 84.1°F | $2,093 |
| 24 | Clark County | 164 | 79.6°F | $3,632 |
| 25 | King County | 151 | 76.7°F | $5,901 |
| 26 | Skagit County | 137 | 76.7°F | $3,615 |
| 27 | Whatcom County | 126 | 77.8°F | $3,915 |
| 28 | Mason County | 123 | 75.6°F | $2,830 |
| 29 | Pierce County | 120 | 76.5°F | $3,649 |
| 30 | Lewis County | 113 | 78.0°F | $2,569 |
| 31 | Thurston County | 113 | 78.0°F | $3,399 |
| 32 | Wahkiakum County | 112 | 77.3°F | $2,559 |
| 33 | Snohomish County | 97 | 73.0°F | $4,709 |
| 34 | Pacific County | 44 | 72.8°F | $2,128 |
| 35 | San Juan County | 32 | 73.3°F | $5,145 |
| 36 | Grays Harbor County | 26 | 68.1°F | $2,178 |
| 37 | Clallam County | 23 | 69.7°F | $2,884 |
| 38 | Jefferson County | 23 | 69.7°F | $3,637 |
| 39 | Island County | 22 | 70.5°F | $3,905 |
Every figure is modelled on the county's own median home with 20% down at 7.03%. Property tax and electricity are county and state specific; homeowners insurance uses the NAIC average premium for that state, which ranges from 0.16% of home value in Hawaii to 1.16% in Oklahoma. Maintenance and water are national estimates. Full methodology.
Nationwide
Highest Cooling Demand across all 3,133 US counties · Every county in Washington