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 Mar-Apr-May
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| RUATORIA | 26 | 249 - 366 | 366 - 502 | 502 - 931 |
| GISBORNE AWS | 30 | 139 - 249 | 249 - 336 | 336 - 440 |
| GISBORNE, MANUTUKE | 22 | 155 - 220 | 220 - 323 | 323 - 424 |
| WAIROA, NORTH CLYDE EWS | 30 | 199 - 333 | 333 - 498 | 498 - 576 |
| NAPIER AERO AWS | 30 | 103 - 179 | 179 - 261 | 261 - 363 |
| NAPIER NELSON PK | 30 | 101 - 171 | 171 - 258 | 258 - 361 |
| TAKAPAU PLAINS AWS | 30 | 125 - 213 | 213 - 329 | 329 - 462 |
| KOPUA | 30 | 125 - 213 | 213 - 329 | 329 - 462 |
| DANNEVIRKE | 30 | 164 - 225 | 225 - 305 | 305 - 410 |
| CASTLEPOINT AWS | 29 | 121 - 216 | 216 - 289 | 289 - 421 |
| MASTERTON, TE ORE ORE | 29 | 129 - 211 | 211 - 267 | 267 - 358 |
| EAST TARATAHI AWS | 29 | 129 - 206 | 206 - 267 | 267 - 358 |