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 Jan-Feb-Mar
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| GREYMOUTH AERO | 30 | 385 - 459 | 459 - 587 | 587 - 819 |
| HOKITIKA AERO | 30 | 392 - 589 | 589 - 684 | 684 - 940 |
| ARTHURS PASS EWS | 30 | 452 - 893 | 893 - 1117 | 1117 - 1509 |
| CRAIGIEBURN FOREST | 30 | 119 - 229 | 229 - 293 | 293 - 400 |
| MT COOK EWS | 29 | 526 - 965 | 965 - 1171 | 1171 - 1699 |
| TARA HILLS AWS | 25 | 44 - 96 | 96 - 165 | 165 - 202 |
| MILFORD SOUND | 30 | 1007 - 1506 | 1506 - 2022 | 2022 - 2940 |
| WANAKA AERO AWS | 30 | 74 - 133 | 133 - 186 | 186 - 335 |
| QUEENSTOWN AERO AWS | 30 | 98 - 186 | 186 - 270 | 270 - 725 |
| CROMWELL EWS | 30 | 52 - 100 | 100 - 131 | 131 - 222 |
| QUEENSTOWN | 30 | 113 - 158 | 158 - 253 | 253 - 368 |
| CLYDE DAM | 22 | 79 - 108 | 108 - 175 | 175 - 199 |
| ETTRICK NO.2 | 30 | 65 - 118 | 118 - 193 | 193 - 257 |
| GORE AWS | 30 | 146 - 198 | 198 - 303 | 303 - 401 |
| WINTON | 30 | 150 - 218 | 218 - 297 | 297 - 383 |
| INVERCARGILL AERO | 29 | 181 - 227 | 227 - 317 | 317 - 414 |
| TIWAI POINT EWS | 29 | 174 - 235 | 235 - 345 | 345 - 424 |