Rainfall tercile tables for several locations in the North of the South 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 NSI for the 3-month period Jul-Aug-Sep
Station Name | No. years | Below Normal | Near Normal | Above Normal |
---|---|---|---|---|
MOTUEKA, RIWAKA EWS | 30 | 245 - 381 | 381 - 473 | 473 - 617 |
NELSON AERO | 27 | 162 - 198 | 198 - 282 | 282 - 353 |
APPLEBY 2 EWS | 30 | 162 - 201 | 201 - 283 | 283 - 353 |
BLENHEIM RESEARCH EWS | 30 | 116 - 173 | 173 - 229 | 229 - 316 |
BLENHEIM AERO AWS | 30 | 116 - 173 | 173 - 227 | 227 - 316 |
GRASSMERE SALT WORKS | 29 | 89 - 142 | 142 - 195 | 195 - 264 |
CAPE CAMPBELL AWS | 29 | 89 - 144 | 144 - 191 | 191 - 289 |
WESTPORT AERO AWS | 30 | 359 - 497 | 497 - 617 | 617 - 757 |
LAKE ROTOITI | 30 | 192 - 348 | 348 - 446 | 446 - 600 |