(S (S (SBAR (IN Although) (S (BASENP (DT the) (NNP United) (NNPS States)) (VP (VP (VBD experienced) (BASENP (JJ average) (NNS temperatures))) (PP (IN for) (NP (DT the) (NP (NP (BASENP (NNP December) (COMMA ,) (NN 2006)) (CC to) (BASENP (NNP February) (COMMA ,) (NN 2007))) (NN period))))))) (COMMA ,) (S (S (BASENP (JJ overall) (NN world) (NNS temperatures)) (VP (VBD were) (ADJP (ADJP (DT the) (JJS warmest)) (PP (IN on) (BASENP (NN record)))))) (COMMA ,) (PP (VBG according) (PP (TO to) (NP (BASENP (DT the) (NNP National) (NNP Oceanic) (CC and) (NNP Atmospheric) (NNP Administration)) (PRN (LRB -LRB-) (BASENP (NNP NOAA)) (RRB -RRB-))))))) (PERIOD .))