Abstract:We made linear regression to get the empirical formula of Tm and Ts,es,Ps using HongKong Kings Park sounding station(number 45004) data from 2003 to 2009,in which Tm means weighted atmospheric mean temperature,Ts means surface temperature,es means surface water vapor pressure and Ps means surface atmospheric pressure.It concludes that there is no significant difference between onefactor and multifactor regression results,but the precision of regression formula based on local sounding data is higher than that of Bevis formula;the precision of regression formula can’t be significantly increased by annually adding sample numbers.It is sufficient to forecast Tm by Ts using sounding data of last month and the fitting root mean square is 2031 K.Fitting root mean square (FRMS) changes little when using TmTs model (Tm=11329+0586 3Ts) based on data of year 2003 to compute data from 2004 to 2009,so once the TmTsmodel is set up,it can be used for long time.The TmTs model (Tm=53244+0783Ts) is set up using 83 exchanging sounding stations data of year 2009,which can be used to compute Tm of five stations from different climatic regions.It can be seen that the precision is almost the same with that computed using local data,so the TmTs model (Tm=53244+0783Ts) can be used widely in China.