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| Variables | Mean | SD | Median | Min | Max |
|---|---|---|---|---|---|
| HFMD rate* | 5.0 | 6.2 | 2.4 | 0.1 | 29.3 |
| Average temperature (°C) | 13.2 | 10.4 | 14.5 | −6.5 | 29.8 |
| Relative humidity (%) | 66.0 | 9.9 | 65.2 | 45.4 | 88.5 |
| Precipitation (mm) | 8.5 | 10.0 | 4.7 | 0.0 | 50.0 |
| Sunshine (hours) | 6.1 | 1.9 | 6.2 | 1.6 | 10.3 |
| Wind speed (m/s) | 2.3 | 0.4 | 2.2 | 1.4 | 3.6 |
* Weekly HFMD cases per 1,000 outpatients
