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學(xué)習(xí)快評丨qibao666888　　今??(jin)年??(nian)北?(bei)京??(jing)入??(ru)春??(chun)較??(jiao)常??(chang)年??(nian)偏?(pian)早??(zao)??，主??(zhu)要?(yao)原??(yuan)因??(yin)是??(shi)2月??(yue)下??(xia)旬??(xun)以??(yi)來??(lai)??，華?(hua)北??(bei)地??(di)區(qū)??(qu)冷??(leng)空??(kong)氣??(qi)勢??(shi)力??(li)較??(jiao)弱?(ruo)??，降??(jiang)水??(shui)偏?(pian)少??(shao)??，使??(shi)得??(de)氣??(qi)溫??(wen)回??(hui)升??(sheng)明??(ming)顯??(xian)??，導(dǎo)??(dao)致??(zhi)入??(ru)春??(chun)時(shí)?(shi)間?(jian)提??(ti)前?(qian)??。??　　根??(gen)據(jù)??(ju)《氣??(qi)候??(hou)季??(ji)節(jié)?(jie)劃??(hua)分??(fen)》國??(guo)家??(jia)標(biāo)??(biao)準(zhǔn)??(zhun)：當(dāng)??(dang)年??(nian)5天??(tian)滑??(hua)動(dòng)?(dong)平??(ping)均??(jun)氣??(qi)溫??(wen)序??(xu)列??(lie)中?(zhong)??，首?(shou)次??(ci)連??(lian)續(xù)??(xu)5個(gè)??(ge)滿??(man)足?(zu)≥10℃的??(de)滑??(hua)動(dòng)?(dong)平??(ping)均??(jun)值??(zhi)所??(suo)對??(dui)應(yīng)??(ying)的??(de)日??(ri)平??(ping)均??(jun)氣?(qi)溫??(wen)序??(xu)列??(lie)(9天?(tian))中??(zhong)??，第??(di)一??(yi)個(gè)??(ge)≥10℃的?(de)日?(ri)期??(qi)作??(zuo)為??(wei)春??(chun)季??(ji)起?(qi)始??(shi)日??(ri)??。??結(jié)??(jie)合??(he)前??(qian)期?(qi)實(shí)??(shi)況??(kuang)??，北??(bei)京??(jing)自??(zi)3月??(yue)21日??(ri)起?(qi)滑??(hua)動(dòng)??(dong)平??(ping)均?(jun)氣??(qi)溫??(wen)序??(xu)列??(lie)開??(kai)始??(shi)≥10℃??，并??(bing)于??(yu)3月??(yue)25日??(ri)達(dá)??(da)到??(dao)連??(lian)續(xù)??(xu)5天??(tian)≥10℃??，其??(qi)所??(suo)對??(dui)應(yīng)??(ying)的??(de)氣??(qi)溫??(wen)序??(xu)列??(lie)中??(zhong)第??(di)一??(yi)個(gè)??(ge)≥10℃的??(de)日?(ri)期??(qi)為??(wei)3月??(yue)19日??(ri)(11.6℃)??，因??(yin)此??(ci)判??(pan)定??(ding)2025年??(nian)北??(bei)京??(jing)入??(ru)春??(chun)日??(ri)期??(qi)為??(wei)3月??(yue)19日??(ri)??。。