Rainfall tercile tables for several locations in the North 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 NNI for the 3-month period Jul-Aug-Sep
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| KAITAIA EWS | 29 | 259 - 353 | 353 - 449 | 449 - 632 |
| KAIKOHE AWS | 27 | 293 - 360 | 360 - 501 | 501 - 777 |
| WHANGAREI AERO AWS | 30 | 254 - 385 | 385 - 503 | 503 - 693 |
| DARGAVILLE 2 EWS | 27 | 216 - 325 | 325 - 387 | 387 - 497 |
| PORT FITZROY, GREAT BARRIER | 30 | 303 - 448 | 448 - 638 | 638 - 868 |
| LEIGH 2 | 29 | 230 - 295 | 295 - 419 | 419 - 552 |
| WARKWORTH EWS | 29 | 291 - 367 | 367 - 462 | 462 - 591 |
| WHENUAPAI AERO | 22 | 221 - 331 | 331 - 453 | 453 - 545 |
| WHITIANGA AERO AWS | 24 | 323 - 486 | 486 - 682 | 682 - 944 |
| HENDERSON, RIVER PK | 23 | 340 - 420 | 420 - 502 | 502 - 624 |
| AUCKLAND,OWAIRAKA | 30 | 212 - 336 | 336 - 431 | 431 - 503 |
| AUCKLAND AERO | 30 | 193 - 299 | 299 - 387 | 387 - 486 |
| ARDMORE | 30 | 225 - 335 | 335 - 471 | 471 - 525 |
| PUKEKOHE EWS | 30 | 227 - 347 | 347 - 446 | 446 - 545 |
| PAEROA AWS | 30 | 229 - 356 | 356 - 458 | 458 - 565 |
| HICKS BAY AWS | 23 | 230 - 366 | 366 - 451 | 451 - 619 |
| TAURANGA AERO AWS | 30 | 182 - 365 | 365 - 438 | 438 - 538 |
| HAMILTON, RUAKURA 2 EWS | 30 | 165 - 309 | 309 - 427 | 427 - 455 |
| WHATAWHATA | 30 | 257 - 413 | 413 - 561 | 561 - 695 |
| TE PUKE EWS | 27 | 268 - 405 | 405 - 515 | 515 - 690 |
| HAMILTON AWS | 28 | 168 - 325 | 325 - 434 | 434 - 470 |
| WHAKATANE AERO AWS | 30 | 217 - 341 | 341 - 460 | 460 - 554 |
| OPOTIKI | 30 | 130 - 317 | 317 - 426 | 426 - 492 |
| ROTORUA AERO AWS | 30 | 260 - 411 | 411 - 503 | 503 - 638 |
| WAIMANA | 29 | 202 - 417 | 417 - 562 | 562 - 637 |
| TE KUITI | 29 | 283 - 426 | 426 - 532 | 532 - 647 |
| TAUPO AWS | 30 | 134 - 282 | 282 - 333 | 333 - 407 |