MEAN 10CM EARTH TEMPERATURE (ºC) Data are mean monthly values of 9am 10cm depth earth temperatures for the 1971-2000 period for locations having at least 5 complete years of data Location JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR KAITAIA 20.1 20.1 18.4 16.3 13.5 11.5 10.6 10.6 12.1 14.0 16.0 18.5 15.2 DARGAVILLE 20.1 19.6 18.2 15.4 12.6 10.8 9.7 10.4 12.2 14.5 16.8 18.8 14.9 AUCKLAND 20.3 20.2 18.6 15.7 12.9 10.7 9.4 10.2 12.0 14.2 16.5 18.6 15.0 TAURANGA 19.6 19.6 18.2 15.5 12.3 10.0 8.7 9.6 11.3 13.6 16.1 18.0 14.3 ROTORUA 18.6 18.4 16.5 13.3 9.6 7.5 6.2 7.0 9.0 12.2 14.7 16.8 12.5 TAUPO 17.7 17.5 15.4 11.9 8.5 6.5 5.3 6.2 8.2 11.3 14.0 16.2 11.5 HAMILTON 18.6 18.6 16.8 13.9 10.9 8.7 7.5 8.5 10.4 12.9 15.2 17.3 13.3 NEW PLYMOUTH 18.8 18.8 17.0 13.9 10.9 8.8 7.7 8.6 10.4 12.7 15.1 17.2 13.3 MASTERTON 17.8 17.5 15.4 12.2 8.9 6.8 5.9 6.5 8.7 11.4 14.1 16.5 11.8 GISBORNE 19.8 19.0 16.9 13.3 9.8 7.7 6.8 7.9 10.2 13.4 16.2 18.6 13.3 NAPIER 19.9 19.9 17.1 14.1 10.6 7.9 7.7 7.7 10.1 13.3 15.6 18.5 13.4 PALMERSTON NORTH 18.1 17.9 16.1 13.2 10.4 8.1 7.0 7.7 9.9 12.4 14.6 16.8 12.7 WELLINGTON 17.3 17.1 15.2 12.4 9.8 7.7 6.7 7.2 9.1 11.4 13.6 15.9 11.9 WANGANUI 19.4 19.0 16.7 13.4 10.5 8.2 7.2 7.9 10.2 12.9 15.6 17.9 13.2 KARAMEA 18.2 18.1 16.1 12.9 9.9 7.2 6.2 7.4 10.1 12.6 14.8 16.9 12.5 HOKITIKA 17.0 16.8 14.8 11.9 8.8 6.1 5.0 6.1 8.6 11.3 13.7 15.7 11.3 FRANZ JOSEF 15.5 15.8 14.2 11.8 9.1 6.9 5.7 6.8 8.8 10.7 12.7 14.1 10.9 NELSON 17.9 17.5 15.7 11.8 8.0 5.6 4.4 5.8 8.7 11.9 14.4 16.5 11.5 BLENHEIM 18.7 17.7 14.7 11.4 7.8 5.1 4.4 5.9 8.4 11.6 14.5 17.3 11.4 HANMER 17.5 17.5 13.5 9.0 5.2 2.7 1.8 2.7 6.3 9.8 12.0 15.7 9.6 CHRISTCHURCH 17.2 16.5 14.1 10.6 6.9 4.3 3.7 4.6 7.2 10.5 13.4 15.8 10.4 TWIZEL 17.5 15.9 13.5 9.1 5.4 2.1 1.3 3.0 6.1 9.2 13.0 16.0 9.4 TIMARU 17.2 16.4 14.0 10.6 6.7 3.9 3.1 4.3 7.7 11.0 13.7 15.9 10.4 DUNEDIN 15.6 15.0 12.7 9.6 6.7 4.8 3.6 4.5 7.1 9.6 12.1 14.1 9.6 CROMWELL 18.1 17.1 13.3 8.7 4.9 2.2 1.5 2.7 5.8 9.7 13.7 16.5 9.5 ALEXANDRA 16.5 15.5 13.3 9.2 4.9 2.0 1.2 2.4 5.7 9.9 13.2 15.5 9.1 INVERCARGILL 13.9 13.6 12.0 9.6 7.2 4.8 3.8 4.5 6.6 8.9 10.9 12.9 9.0 CHATHAM ISLAND 15.7 15.5 14.1 11.9 9.3 7.6 6.7 7.3 8.6 10.5 12.5 14.7 11.2