Abstract:Using rime and glaze observation data at 142 stations in Hebei Province, surface observation data at 94 stations in the southern Hebei Province and radiosonde data at Xingtai from 1980 to 2009, the spatial and temporal distribution characteristics of rime and glaze are analyzed, and suitable meteorological conditions (temperature, humidity and wind) for rime and glaze are studied by the box whisker plot. The results show that： (1) rime and glaze occur mainly in the southern Hebei Province from November to March the following year, and they are more frequent in eastern plains than western mountains; (2) the suitable meteorological conditions for rime are on fog days, and daily mean temperature is between -7.2 and -3.1℃, daily mean humidity ≥92%, daily mean wind speed ≤1.2 m·s-1, and the probability of temperature inversions is about 95% when rime occurs; (3) the suitable meteorological conditions for glaze are rain days and daily mean temperature is between -4.1 and 0℃, daily mean humidity ≥87%, and probability of temperature inversions is 100% when glaze occurs; (4) relative humidity in the high value area of rime and glaze is significantly higher than low value area. Therefore, higher relative humidity is the main cause for the formation of high occurrence area of rime and glaze.