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Engineering ToolBox > Outside to Inside Temperature and Relative Humidity
When cold outside temperature is supplied to and heated in a building, the relative humidity is decrease.
The relationship between outside and inside temperature is expressed below:
| Outside Temperature | Outside Relative Humidity (%) | Inside Temperature | Inside Relative Humidity (%) |
| -7 (oC) 20 (oF) | 0 | 21 (oC) 70 (oF) | 0 |
| 20 | 3 | ||
| 40 | 6 | ||
| 60 | 8 | ||
| 80 | 11 |