Rainfall tercile tables for several locations in the East 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 ESI for the 3-month period Feb-Mar-Apr
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| KAIKOURA AWS | 30 | 113 - 138 | 138 - 259 | 259 - 482 |
| HANMER FOREST EWS | 27 | 112 - 188 | 188 - 289 | 289 - 509 |
| CULVERDEN | 30 | 54 - 100 | 100 - 196 | 196 - 310 |
| DARFIELD | 30 | 67 - 119 | 119 - 224 | 224 - 337 |
| CHRISTCHURCH AERO | 30 | 68 - 98 | 98 - 154 | 154 - 260 |
| CHRISTCHURCH GARDENS | 30 | 68 - 97 | 97 - 160 | 160 - 267 |
| MT PLEASANT | 23 | 77 - 102 | 102 - 164 | 164 - 249 |
| LINCOLN, BROADFIELD EWS | 30 | 55 - 99 | 99 - 156 | 156 - 280 |
| WINCHMORE EWS | 30 | 71 - 114 | 114 - 197 | 197 - 302 |
| ASHBURTON COUNCIL | 30 | 75 - 132 | 132 - 203 | 203 - 324 |
| PEEL FOREST | 30 | 133 - 224 | 224 - 319 | 319 - 515 |
| LAKE TEKAPO, AIR SAFARIS | 30 | 59 - 113 | 113 - 152 | 152 - 261 |
| WOODBURY | 30 | 120 - 201 | 201 - 332 | 332 - 481 |
| ORARI ESTATE | 30 | 63 - 136 | 136 - 232 | 232 - 385 |
| TIMARU EWS | 30 | 58 - 114 | 114 - 166 | 166 - 295 |
| WAIMATE | 30 | 54 - 100 | 100 - 174 | 174 - 292 |
| IKAWAI | 23 | 53 - 99 | 99 - 177 | 177 - 288 |
| OAMARU AIRPORT AWS | 30 | 57 - 106 | 106 - 197 | 197 - 283 |
| PALMERSTON | 30 | 59 - 95 | 95 - 202 | 202 - 292 |
| TAIAROA HEAD | 30 | 73 - 119 | 119 - 148 | 148 - 257 |
| DUNEDIN, MUSSELBURGH EWS | 30 | 114 - 159 | 159 - 213 | 213 - 326 |
| DUNEDIN AERO AWS | 30 | 93 - 153 | 153 - 190 | 190 - 288 |