長(chang)沙屬亞熱帶(dai)季(ji)(ji)風氣(qi)(qi)(qi)候(hou)，氣(qi)(qi)(qi)候(hou)特(te)征是：氣(qi)(qi)(qi)候(hou)溫(wen)(wen)(wen)和，降水(shui)(shui)充沛，雨(yu)熱同期(qi)，四季(ji)(ji)分明(ming)。夏(xia)冬季(ji)(ji)長(chang)，春秋(qiu)季(ji)(ji)短，夏(xia)季(ji)(ji)約118-127天(tian)(tian)(tian)(tian)，冬季(ji)(ji)117-122天(tian)(tian)(tian)(tian)，春季(ji)(ji)61-64天(tian)(tian)(tian)(tian)，秋(qiu)季(ji)(ji)59-69天(tian)(tian)(tian)(tian)。春溫(wen)(wen)(wen)變化(hua)大(da)，夏(xia)初雨(yu)水(shui)(shui)多，伏秋(qiu)高溫(wen)(wen)(wen)久，冬季(ji)(ji)嚴寒(han)少。3月下旬至5月中(zhong)旬，冷暖空氣(qi)(qi)(qi)相互(hu)交(jiao)綏(sui)，形成(cheng)連(lian)綿陰雨(yu)低(di)溫(wen)(wen)(wen)寡(gua)照(zhao)天(tian)(tian)(tian)(tian)氣(qi)(qi)(qi)。從5月下旬起，氣(qi)(qi)(qi)溫(wen)(wen)(wen)顯著提高，夏(xia)季(ji)(ji)日(ri)平均(jun)氣(qi)(qi)(qi)溫(wen)(wen)(wen)在30℃以上有85天(tian)(tian)(tian)(tian)，氣(qi)(qi)(qi)溫(wen)(wen)(wen)高于(yu)35℃的炎(yan)熱日(ri)每年(nian)約30天(tian)(tian)(tian)(tian)，盛夏(xia)酷(ku)熱少雨(yu)。9月下旬后，白天(tian)(tian)(tian)(tian)較暖，入夜轉涼，降水(shui)(shui)量減少，低(di)云量日(ri)多。從11月下旬至第二年(nian)3月中(zhong)旬，節屆(jie)冬令，長(chang)沙氣(qi)(qi)(qi)候(hou)平均(jun)氣(qi)(qi)(qi)溫(wen)(wen)(wen)低(di)于(yu)0℃的嚴寒(han)期(qi)很短暫，全(quan)年(nian)以1月最(zui)冷，月平均(jun)為4.4℃-5.1℃。長(chang)沙市區(qu)年(nian)平均(jun)氣(qi)(qi)(qi)溫(wen)(wen)(wen)17.2℃，各縣(xian)16.8℃-17.3℃，年(nian)積溫(wen)(wen)(wen)為5457℃，市區(qu)年(nian)均(jun)降水(shui)(shui)量1361.6毫(hao)米，各縣(xian)年(nian)均(jun)降水(shui)(shui)量1358.6-1552.5毫(hao)米。