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 Sep-Oct-Nov
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| KAIKOURA AWS | 30 | 83 - 151 | 151 - 234 | 234 - 386 |
| HANMER FOREST EWS | 30 | 185 - 266 | 266 - 328 | 328 - 427 |
| CULVERDEN | 30 | 90 - 131 | 131 - 174 | 174 - 206 |
| CHRISTCHURCH AERO | 30 | 62 - 123 | 123 - 155 | 155 - 231 |
| DARFIELD | 30 | 99 - 174 | 174 - 219 | 219 - 254 |
| CHRISTCHURCH GARDENS | 29 | 55 - 122 | 122 - 150 | 150 - 243 |
| MT PLEASANT | 23 | 107 - 115 | 115 - 178 | 178 - 215 |
| LINCOLN, BROADFIELD EWS | 30 | 79 - 121 | 121 - 162 | 162 - 212 |
| WINCHMORE EWS | 30 | 98 - 143 | 143 - 181 | 181 - 246 |
| ASHBURTON COUNCIL | 30 | 79 - 142 | 142 - 187 | 187 - 255 |
| PEEL FOREST | 30 | 162 - 241 | 241 - 304 | 304 - 360 |
| LAKE TEKAPO, AIR SAFARIS | 30 | 66 - 119 | 119 - 182 | 182 - 245 |
| WOODBURY | 30 | 129 - 230 | 230 - 282 | 282 - 360 |
| ORARI ESTATE | 30 | 81 - 139 | 139 - 208 | 208 - 232 |
| TIMARU EWS | 30 | 68 - 111 | 111 - 151 | 151 - 198 |
| WAIMATE | 29 | 85 - 112 | 112 - 141 | 141 - 192 |
| IKAWAI | 23 | 82 - 109 | 109 - 142 | 142 - 188 |
| OAMARU AIRPORT AWS | 30 | 84 - 118 | 118 - 144 | 144 - 208 |
| PALMERSTON | 30 | 74 - 119 | 119 - 162 | 162 - 239 |
| TAIAROA HEAD | 30 | 92 - 124 | 124 - 172 | 172 - 205 |
| DUNEDIN, MUSSELBURGH EWS | 30 | 131 - 174 | 174 - 211 | 211 - 261 |
| DUNEDIN AERO AWS | 30 | 122 - 162 | 162 - 207 | 207 - 249 |