On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Rainfall Dec-Jan-Feb

Rainfall tercile tables for several locations in the West and South of the South Island. Data are based on the 30-year period 1971-2000. The ranges for each tercile are: below normal = second lowest to 33rd percentile; near normal = 34th to 66th percentile; above normal = 67th percentile to second highest.

Historical rainfall total (mm) range for forecast area WSSI for the 3-month period Dec-Jan-Feb

Station Name No. years Below Normal Near Normal Above Normal
GREYMOUTH AERO 30 346 - 529 529 - 647 647 - 888
HOKITIKA AERO 30 408 - 589 589 - 782 782 - 966
ARTHURS PASS EWS 30 569 - 898 898 - 1349 1349 - 1939
CRAIGIEBURN FOREST 30 122 - 238 238 - 347 347 - 494
MT COOK EWS 30 581 - 771 771 - 1301 1301 - 1905
TARA HILLS AWS 26 56 - 98 98 - 156 156 - 208
MILFORD SOUND 30 1106 - 1472 1472 - 2022 2022 - 3128
WANAKA AERO AWS 30 75 - 109 109 - 185 185 - 312
QUEENSTOWN AERO AWS 30 88 - 150 150 - 254 254 - 660
CROMWELL EWS 30 46 - 97 97 - 135 135 - 251
QUEENSTOWN 30 97 - 168 168 - 237 237 - 382
CLYDE DAM 22 70 - 116 116 - 161 161 - 235
ETTRICK NO.2 30 74 - 126 126 - 193 193 - 270
GORE AWS 30 138 - 232 232 - 315 315 - 406
WINTON 30 154 - 217 217 - 308 308 - 414
INVERCARGILL AERO 29 174 - 240 240 - 309 309 - 450
TIWAI POINT EWS 30 162 - 222 222 - 311 311 - 436
Book: Baseline Tables