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 Jun-Jul-Aug
Station Name | No. years | Below Normal | Near Normal | Above Normal |
---|---|---|---|---|
MOTUEKA, RIWAKA EWS | 30 | 244 - 400 | 400 - 470 | 470 - 598 |
NELSON AERO | 27 | 185 - 228 | 228 - 265 | 265 - 347 |
APPLEBY 2 EWS | 30 | 185 - 227 | 227 - 265 | 265 - 347 |
BLENHEIM RESEARCH EWS | 30 | 137 - 181 | 181 - 230 | 230 - 298 |
BLENHEIM AERO AWS | 30 | 134 - 174 | 174 - 228 | 228 - 298 |
GRASSMERE SALT WORKS | 29 | 95 - 151 | 151 - 221 | 221 - 307 |
CAPE CAMPBELL AWS | 29 | 100 - 166 | 166 - 221 | 221 - 315 |
WESTPORT AERO AWS | 30 | 413 - 507 | 507 - 595 | 595 - 814 |
LAKE ROTOITI | 30 | 270 - 342 | 342 - 416 | 416 - 566 |