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 Nov-Dec-Jan
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| KAIKOURA AWS | 30 | 85 - 125 | 125 - 192 | 192 - 288 |
| HANMER FOREST EWS | 30 | 122 - 203 | 203 - 258 | 258 - 414 |
| CULVERDEN | 30 | 70 - 107 | 107 - 140 | 140 - 242 |
| DARFIELD | 30 | 95 - 153 | 153 - 209 | 209 - 293 |
| CHRISTCHURCH AERO | 30 | 63 - 100 | 100 - 166 | 166 - 222 |
| CHRISTCHURCH GARDENS | 30 | 66 - 96 | 96 - 166 | 166 - 240 |
| MT PLEASANT | 24 | 82 - 114 | 114 - 184 | 184 - 214 |
| LINCOLN, BROADFIELD EWS | 30 | 78 - 121 | 121 - 174 | 174 - 225 |
| WINCHMORE EWS | 30 | 89 - 138 | 138 - 180 | 180 - 243 |
| ASHBURTON COUNCIL | 30 | 76 - 126 | 126 - 189 | 189 - 270 |
| PEEL FOREST | 29 | 184 - 249 | 249 - 325 | 325 - 500 |
| LAKE TEKAPO, AIR SAFARIS | 30 | 58 - 97 | 97 - 132 | 132 - 244 |
| WOODBURY | 29 | 162 - 236 | 236 - 313 | 313 - 471 |
| ORARI ESTATE | 30 | 91 - 144 | 144 - 222 | 222 - 331 |
| TIMARU EWS | 30 | 81 - 128 | 128 - 168 | 168 - 201 |
| WAIMATE | 28 | 70 - 106 | 106 - 176 | 176 - 270 |
| IKAWAI | 24 | 82 - 120 | 120 - 156 | 156 - 251 |
| OAMARU AIRPORT AWS | 30 | 81 - 128 | 128 - 174 | 174 - 244 |
| PALMERSTON | 30 | 97 - 131 | 131 - 189 | 189 - 236 |
| TAIAROA HEAD | 30 | 90 - 131 | 131 - 204 | 204 - 252 |
| DUNEDIN, MUSSELBURGH EWS | 30 | 135 - 176 | 176 - 247 | 247 - 322 |
| DUNEDIN AERO AWS | 30 | 137 - 171 | 171 - 229 | 229 - 315 |