Compare dry-skin seasons in two cities
See how indoor drying stress differs between two places across a typical year, using the Dry Skin Index for each area.
Denver and Seattle have a similar number of dry-stress days, but Denver has about 175 more Enhanced Care days than Seattle.
Denver, CO
Worst months reach Enhanced Care
- Annual average DSI
- 6.1
- Worst month
- January (7.7)
- Dry-stress days a year (DSI 4+)
- 365
- Enhanced Care days a year (DSI 6+)
- 195
- Dry season
- all year
- Humidifier months
- October–April
Month by month
Seattle, WA
Worst months reach Special Care
- Annual average DSI
- 4.9
- Worst month
- January (5.8)
- Dry-stress days a year (DSI 4+)
- 362
- Enhanced Care days a year (DSI 6+)
- 20
- Dry season
- all year
- Humidifier months
- None
Month by month
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Know when your own area changes
These are typical seasons. Free Guide Lite follows this week's Dry Skin Index for your ZIP code and can send a short weekly email with one care tip.
Get my weekly skin-care forecastValues are modeled estimates of typical indoor drying stress for each metro area, simulated from 2025 local climatic data. They are not measurements of individual homes. Dry-stress days are days with a modeled Dry Skin Index of 4 or higher; Enhanced Care days are 6 or higher.