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 Oct-Nov-Dec
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| KAIKOURA AWS | 30 | 93 - 149 | 149 - 223 | 223 - 324 |
| HANMER FOREST EWS | 30 | 187 - 228 | 228 - 317 | 317 - 418 |
| CULVERDEN | 30 | 91 - 118 | 118 - 158 | 158 - 280 |
| DARFIELD | 30 | 108 - 168 | 168 - 227 | 227 - 279 |
| CHRISTCHURCH AERO | 30 | 70 - 116 | 116 - 157 | 157 - 229 |
| CHRISTCHURCH GARDENS | 30 | 71 - 114 | 114 - 165 | 165 - 227 |
| MT PLEASANT | 23 | 99 - 128 | 128 - 191 | 191 - 252 |
| LINCOLN, BROADFIELD EWS | 30 | 66 - 125 | 125 - 183 | 183 - 237 |
| WINCHMORE EWS | 30 | 87 - 138 | 138 - 187 | 187 - 240 |
| ASHBURTON COUNCIL | 30 | 100 - 153 | 153 - 192 | 192 - 255 |
| PEEL FOREST | 30 | 205 - 271 | 271 - 359 | 359 - 412 |
| LAKE TEKAPO, AIR SAFARIS | 30 | 79 - 121 | 121 - 156 | 156 - 239 |
| WOODBURY | 30 | 172 - 237 | 237 - 322 | 322 - 406 |
| ORARI ESTATE | 30 | 111 - 148 | 148 - 210 | 210 - 256 |
| TIMARU EWS | 30 | 85 - 130 | 130 - 171 | 171 - 192 |
| WAIMATE | 29 | 104 - 137 | 137 - 165 | 165 - 239 |
| IKAWAI | 23 | 105 - 139 | 139 - 168 | 168 - 214 |
| OAMARU AIRPORT AWS | 30 | 108 - 132 | 132 - 180 | 180 - 242 |
| PALMERSTON | 30 | 101 - 141 | 141 - 182 | 182 - 245 |
| TAIAROA HEAD | 30 | 96 - 139 | 139 - 191 | 191 - 288 |
| DUNEDIN, MUSSELBURGH EWS | 30 | 147 - 194 | 194 - 224 | 224 - 328 |
| DUNEDIN AERO AWS | 30 | 138 - 172 | 172 - 221 | 221 - 333 |