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 Jul-Aug-Sep
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| RUATORIA | 26 | 318 - 491 | 491 - 635 | 635 - 941 |
| GISBORNE AWS | 30 | 129 - 229 | 229 - 346 | 346 - 457 |
| GISBORNE, MANUTUKE | 21 | 150 - 238 | 238 - 356 | 356 - 432 |
| WAIROA, NORTH CLYDE EWS | 28 | 214 - 275 | 275 - 385 | 385 - 537 |
| NAPIER AERO AWS | 30 | 111 - 156 | 156 - 261 | 261 - 329 |
| NAPIER NELSON PK | 30 | 120 - 155 | 155 - 263 | 263 - 330 |
| TAKAPAU PLAINS AWS | 30 | 182 - 269 | 269 - 329 | 329 - 439 |
| KOPUA | 30 | 182 - 269 | 269 - 329 | 329 - 439 |
| DANNEVIRKE | 30 | 172 - 238 | 238 - 316 | 316 - 387 |
| CASTLEPOINT AWS | 30 | 128 - 237 | 237 - 293 | 293 - 465 |
| MASTERTON, TE ORE ORE | 29 | 140 - 226 | 226 - 277 | 277 - 453 |
| EAST TARATAHI AWS | 29 | 144 - 229 | 229 - 288 | 288 - 453 |