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 Jun-Jul-Aug
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| RUATORIA | 26 | 393 - 509 | 509 - 683 | 683 - 904 |
| GISBORNE AWS | 30 | 155 - 233 | 233 - 327 | 327 - 504 |
| GISBORNE, MANUTUKE | 21 | 174 - 228 | 228 - 370 | 370 - 506 |
| WAIROA, NORTH CLYDE EWS | 28 | 232 - 303 | 303 - 402 | 402 - 702 |
| NAPIER AERO AWS | 30 | 110 - 184 | 184 - 266 | 266 - 468 |
| NAPIER NELSON PK | 30 | 116 - 186 | 186 - 259 | 259 - 479 |
| TAKAPAU PLAINS AWS | 30 | 183 - 265 | 265 - 351 | 351 - 431 |
| KOPUA | 30 | 183 - 265 | 265 - 351 | 351 - 431 |
| DANNEVIRKE | 30 | 173 - 259 | 259 - 331 | 331 - 385 |
| CASTLEPOINT AWS | 29 | 163 - 261 | 261 - 387 | 387 - 482 |
| MASTERTON, TE ORE ORE | 30 | 134 - 231 | 231 - 342 | 342 - 423 |
| EAST TARATAHI AWS | 30 | 132 - 231 | 231 - 342 | 342 - 423 |