Temperature 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 average temperature (deg C) 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 | 11.2 - 12.0 | 12.1 - 12.4 | 12.5 - 13.2 |
| NELSON AERO | 27 | 11.2 - 12.0 | 12.1 - 12.5 | 12.6 - 13.1 |
| APPLEBY 2 EWS | 30 | 11.2 - 12.0 | 12.1 - 12.3 | 12.4 - 13.1 |
| BLENHEIM RESEARCH EWS | 30 | 11.1 - 12.0 | 12.1 - 12.6 | 12.7 - 14.1 |
| BLENHEIM AERO AWS | 30 | 11.4 - 12.2 | 12.3 - 12.9 | 13.0 - 14.1 |
| GRASSMERE SALT WORKS | 27 | 11.3 - 12.4 | 12.5 - 13.0 | 13.1 - 13.7 |
| CAPE CAMPBELL AWS | 28 | 11.3 - 12.3 | 12.4 - 12.8 | 12.9 - 13.7 |
| WESTPORT AERO AWS | 26 | 10.7 - 11.7 | 11.8 - 12.1 | 12.2 - 13.4 |
| LAKE ROTOITI | 29 | 7.7 - 8.6 | 8.7 - 9.0 | 9.1 - 9.9 |