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 Aug-Sep-Oct
Station Name | No. years | Below Normal | Near Normal | Above Normal |
---|---|---|---|---|
MOTUEKA, RIWAKA EWS | 30 | 236 - 344 | 344 - 428 | 428 - 614 |
NELSON AERO | 27 | 156 - 224 | 224 - 275 | 275 - 389 |
APPLEBY 2 EWS | 30 | 160 - 227 | 227 - 280 | 280 - 383 |
BLENHEIM RESEARCH EWS | 30 | 105 - 165 | 165 - 233 | 233 - 281 |
BLENHEIM AERO AWS | 30 | 105 - 159 | 159 - 221 | 221 - 294 |
GRASSMERE SALT WORKS | 29 | 65 - 115 | 115 - 185 | 185 - 242 |
CAPE CAMPBELL AWS | 29 | 81 - 117 | 117 - 182 | 182 - 261 |
WESTPORT AERO AWS | 30 | 411 - 528 | 528 - 635 | 635 - 775 |
LAKE ROTOITI | 30 | 303 - 354 | 354 - 459 | 459 - 673 |