( ( CLIMATE Average ) ( ( weather ( over ( ( ( ( a ( long period ) ) , ) usually ) ( 30 years ) ) ) ) . ) )
(ROOT (S (NP (NNP CLIMATE) (NNP Average)) (VP (VBP weather) (PP (IN over) (NP (NP (DT a) (JJ long) (NN period)) (, ,) (RB usually) (NP (CD 30) (NNS years))))) (. .)))
CLIMATE Average weather over a long period, usually 30 years.
(ROOT (S (NP (NN Climate)) (VP (VBZ is) (NP (NP (DT the) (JJ long-term) (NN average)) (PP (IN of) (NP (NP (NN weather)) (PP (IN in) (NP (DT a) (JJ particular) (NN spot))))))) (. .)))