( ( This author ) ( ( ( points out ) ( that ( weather ( ( refers ( to ( ( current conditions ) ( of ( temperature ( , ( precipitation ( , ( ( humidity and ) wind ) ) ) ) ) ) ) ) ) ( whereas ( climate ( ( is ( ( an average ) ( of ( those conditions ) ) ) ) ( as ( they ( have ( occurred ( over ( various ( time periods ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN author)) (VP (VBZ points) (PRT (RP out)) (SBAR (IN that) (S (NP (NN weather)) (VP (VBZ refers) (PP (TO to) (NP (NP (JJ current) (NNS conditions)) (PP (IN of) (NP (NN temperature) (, ,) (NN precipitation) (, ,) (NN humidity) (CC and) (NN wind))))) (SBAR (IN whereas) (S (NP (NN climate)) (VP (VBZ is) (NP (NP (DT an) (NN average)) (PP (IN of) (NP (DT those) (NNS conditions)))) (SBAR (IN as) (S (NP (PRP they)) (VP (VBP have) (VP (VBN occurred) (PP (IN over) (NP (JJ various) (NN time) (NNS periods)))))))))))))) (. .)))
This author points out that weather refers to current conditions of temperature, precipitation, humidity and wind whereas climate is an average of those conditions as they have occurred over various time periods.
(ROOT (S (NP (DT The) (NN climate)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (NN temperature) (IN plus) (NN precipitation)) (PP (IN of) (NP (NP (DT an) (NN area)) (PP (IN over) (NP (NP (DT a) (JJ long) (NN period)) (PP (IN of) (NP (NN time))))))))))) (. .)))