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 Apr-May-Jun
Station Name | No. years | Below Normal | Near Normal | Above Normal |
---|---|---|---|---|
MOTUEKA, RIWAKA EWS | 29 | 132 - 319 | 319 - 415 | 415 - 559 |
NELSON AERO | 27 | 135 - 210 | 210 - 286 | 286 - 371 |
APPLEBY 2 EWS | 30 | 135 - 208 | 208 - 286 | 286 - 392 |
BLENHEIM RESEARCH EWS | 30 | 94 - 162 | 162 - 195 | 195 - 317 |
BLENHEIM AERO AWS | 30 | 94 - 162 | 162 - 194 | 194 - 307 |
GRASSMERE SALT WORKS | 30 | 82 - 104 | 104 - 182 | 182 - 313 |
CAPE CAMPBELL AWS | 30 | 84 - 105 | 105 - 182 | 182 - 313 |
WESTPORT AERO AWS | 30 | 388 - 503 | 503 - 659 | 659 - 799 |
LAKE ROTOITI | 30 | 248 - 361 | 361 - 459 | 459 - 556 |