Rainfall tercile tables for several locations in the East of the North 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 ENI for the 3-month period Sep-Oct-Nov
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| RUATORIA | 26 | 200 - 270 | 270 - 419 | 419 - 694 |
| GISBORNE AWS | 30 | 81 - 165 | 165 - 236 | 236 - 389 |
| GISBORNE, MANUTUKE | 22 | 112 - 164 | 164 - 244 | 244 - 352 |
| WAIROA, NORTH CLYDE EWS | 28 | 172 - 218 | 218 - 328 | 328 - 419 |
| NAPIER AERO AWS | 30 | 70 - 128 | 128 - 209 | 209 - 317 |
| NAPIER NELSON PK | 30 | 61 - 119 | 119 - 206 | 206 - 306 |
| TAKAPAU PLAINS AWS | 30 | 158 - 215 | 215 - 291 | 291 - 364 |
| KOPUA | 30 | 158 - 215 | 215 - 291 | 291 - 364 |
| DANNEVIRKE | 30 | 158 - 251 | 251 - 300 | 300 - 375 |
| CASTLEPOINT AWS | 30 | 108 - 175 | 175 - 240 | 240 - 292 |
| MASTERTON, TE ORE ORE | 30 | 155 - 193 | 193 - 253 | 253 - 368 |
| EAST TARATAHI AWS | 29 | 154 - 193 | 193 - 253 | 253 - 337 |