Climate thumb|Kanangra-Boyd National Park after a snowfall. The climate varies with elevation. At Katoomba, () the summer average maximum temperature is around 22 °C with a few days extending into the 30s (80s–90s °F) although it is quite common to see maximum temperatures stay in the teens when east coast troughs persist. Night-time temperatures are usually in the teens but can drop to single figures at times.
cLimATe thUMb|kananGra-BOYd naTiOnal PArK aftEr a snowfalL. the Climate varIeS WiTH eLevatIoN. At katOOmba, () the SUmmER averagE maxiMuM temPeratUre iS aRounD 22 °c with a Few daYs exTenDing Into the 30S (80s–90S °f) aLthoUGH IT Is quite COmmoN to seE maxiMuM tEMpeRaTures sTay in the tEEnS whEn EasT coast tRouGHs PersisT. Night-time tEmperatUres ARE uSuaLly in tHE teens bUT cAN droP To singLe fiGuREs At TImes.