Relative humidity detection year 2019

The dataset exposes the detection of environmental probes regarding the average daily relative humidity in the year 2019. Below is the geolocalized data of the weather stations, sensors and related metrics used: http://dati.comune.milano.it/dataset/bd2cbb52-70ac-4f2c-b046-066919ff3661 The *Medium* column can contain values 999 and -999, to be read as **Missing or invalid**.本数据集公开了2019年环境探测设备针对日均相对湿度的检测结果。 以下为所使用的气象站、传感器及相关指标的地理定位数据：http://dati.comune.milano.it/dataset/bd2cbb52-70ac-4f2c-b046-066919ff3661 *Medium*列可包含999与-999两个取值，需将其解读为**缺失或无效**。