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 Sep-Oct-Nov
Station Name | No. years | Below Normal | Near Normal | Above Normal |
---|---|---|---|---|
MOTUEKA, RIWAKA EWS | 30 | 202 - 301 | 301 - 405 | 405 - 481 |
NELSON AERO | 27 | 130 - 202 | 202 - 285 | 285 - 354 |
APPLEBY 2 EWS | 30 | 132 - 206 | 206 - 282 | 282 - 354 |
BLENHEIM RESEARCH EWS | 30 | 97 - 145 | 145 - 203 | 203 - 284 |
BLENHEIM AERO AWS | 30 | 97 - 145 | 145 - 198 | 198 - 263 |
GRASSMERE SALT WORKS | 30 | 56 - 100 | 100 - 164 | 164 - 202 |
CAPE CAMPBELL AWS | 30 | 59 - 102 | 102 - 166 | 166 - 212 |
WESTPORT AERO AWS | 30 | 430 - 513 | 513 - 604 | 604 - 748 |
LAKE ROTOITI | 30 | 298 - 397 | 397 - 458 | 458 - 687 |