September highlights:

The highest temperature was 25.5degC, observed at Hanmer Forest on September 23.

The lowest temperature was 7.5degC, observed at Middlemarch on September 2.

The highest oneday rainfall was 239mm, recorded at Milford Sound on September 13.

The highest wind gust was 187kmh, observed at Cape Turnagain on September 14.

Of the six main centres, Auckland was the warmest, Dunedin was the driest, Christchurch was the sunniest and coldest, Wellington was the wettest and Hamilton was the least sunny.