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 Apr-May-Jun
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| RUATORIA | 26 | 305 - 432 | 432 - 597 | 597 - 882 |
| GISBORNE AWS | 30 | 160 - 232 | 232 - 352 | 352 - 404 |
| GISBORNE, MANUTUKE | 22 | 137 - 229 | 229 - 344 | 344 - 394 |
| WAIROA, NORTH CLYDE EWS | 30 | 236 - 322 | 322 - 442 | 442 - 678 |
| NAPIER AERO AWS | 30 | 82 - 175 | 175 - 257 | 257 - 350 |
| NAPIER NELSON PK | 30 | 77 - 178 | 178 - 256 | 256 - 344 |
| TAKAPAU PLAINS AWS | 30 | 130 - 235 | 235 - 305 | 305 - 398 |
| KOPUA | 30 | 130 - 235 | 235 - 305 | 305 - 398 |
| DANNEVIRKE | 30 | 154 - 250 | 250 - 283 | 283 - 407 |
| CASTLEPOINT AWS | 29 | 138 - 226 | 226 - 320 | 320 - 472 |
| MASTERTON, TE ORE ORE | 29 | 140 - 210 | 210 - 264 | 264 - 397 |
| EAST TARATAHI AWS | 29 | 140 - 210 | 210 - 264 | 264 - 384 |