Abstract: The weighted mean temperature is an important parameter in Global Navigation Satellite System (GNSS) meteorology. A new statistical grid model is established by using the reanalysis meteorological data of 2017 in Ningxia. The comparison shows that the new model is more consistent with the actual value than the results of general model. The analysis shows that in order to meet the requirement of high accuracy. It is necessary to establish a suitable model by using the historical meteorological data of the local area.