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 Nov-Dec-Jan
| Station Name | No. years | Below Normal | Near Normal | Above Normal |
|---|---|---|---|---|
| MOTUEKA, RIWAKA EWS | 30 | 14.9 - 15.8 | 15.9 - 16.0 | 16.1 - 17.2 |
| NELSON AERO | 26 | 14.9 - 15.9 | 16.0 - 16.3 | 16.4 - 17.2 |
| APPLEBY 2 EWS | 29 | 14.9 - 15.9 | 16.0 - 16.2 | 16.3 - 17.0 |
| BLENHEIM RESEARCH EWS | 30 | 14.9 - 16.0 | 16.1 - 16.4 | 16.5 - 17.4 |
| BLENHEIM AERO AWS | 30 | 15.1 - 16.0 | 16.1 - 16.6 | 16.7 - 17.5 |
| GRASSMERE SALT WORKS | 25 | 15.1 - 16.0 | 16.1 - 16.7 | 16.8 - 17.7 |
| CAPE CAMPBELL AWS | 28 | 14.7 - 15.7 | 15.8 - 16.3 | 16.4 - 17.7 |
| WESTPORT AERO AWS | 28 | 13.6 - 14.2 | 14.3 - 15.2 | 15.3 - 16.2 |
| LAKE ROTOITI | 28 | 11.5 - 12.4 | 12.5 - 13.1 | 13.2 - 14.3 |