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 Dec-Jan-Feb
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| KAIKOURA AWS | 30 | 71 - 113 | 113 - 191 | 191 - 269 |
| HANMER FOREST EWS | 29 | 117 - 163 | 163 - 249 | 249 - 390 |
| CULVERDEN | 30 | 57 - 92 | 92 - 167 | 167 - 262 |
| DARFIELD | 30 | 87 - 142 | 142 - 192 | 192 - 316 |
| CHRISTCHURCH AERO | 30 | 50 - 100 | 100 - 160 | 160 - 214 |
| CHRISTCHURCH GARDENS | 30 | 59 - 89 | 89 - 163 | 163 - 222 |
| MT PLEASANT | 23 | 74 - 120 | 120 - 161 | 161 - 218 |
| LINCOLN, BROADFIELD EWS | 30 | 63 - 106 | 106 - 173 | 173 - 229 |
| WINCHMORE EWS | 30 | 97 - 124 | 124 - 183 | 183 - 251 |
| ASHBURTON COUNCIL | 30 | 94 - 120 | 120 - 185 | 185 - 277 |
| PEEL FOREST | 29 | 162 - 249 | 249 - 323 | 323 - 506 |
| LAKE TEKAPO, AIR SAFARIS | 30 | 37 - 91 | 91 - 152 | 152 - 242 |
| WOODBURY | 29 | 161 - 241 | 241 - 315 | 315 - 489 |
| ORARI ESTATE | 30 | 108 - 150 | 150 - 205 | 205 - 350 |
| TIMARU EWS | 30 | 89 - 117 | 117 - 160 | 160 - 205 |
| WAIMATE | 28 | 67 - 112 | 112 - 166 | 166 - 271 |
| IKAWAI | 23 | 79 - 124 | 124 - 156 | 156 - 222 |
| OAMARU AIRPORT AWS | 30 | 72 - 119 | 119 - 182 | 182 - 285 |
| PALMERSTON | 30 | 82 - 121 | 121 - 187 | 187 - 277 |
| TAIAROA HEAD | 30 | 73 - 132 | 132 - 207 | 207 - 252 |
| DUNEDIN, MUSSELBURGH EWS | 30 | 111 - 169 | 169 - 271 | 271 - 318 |
| DUNEDIN AERO AWS | 30 | 125 - 162 | 162 - 246 | 246 - 292 |