Research Article
The Study of Frost Occurrence in Free State Province of South Africa
Table 4
Onset of frost at different probability levels (20%, 50%, and 80%) and thresholds (2°C, 0°C, and −2°C).
| Station | 20% | 50% | 80% | 2°C | 0°C | −2°C | 2°C | 0°C | −2°C | 2°C | 0°C | −2°C |
| Bethlehem | 15-Apr | 27-Apr | 07-May | 25-Apr | 06-May | 17-May | 03-May | 15-May | 28-May | Bloemfontein | 12-Apr | 22-Apr | 03-May | 22-Apr | 01-May | 17-May | 02-May | 09-May | 30-May | Bothaville | 20-Apr | 04-May | 18-May | 04-May | 17-May | 02-Jun | 17-May | 30-May | 18-Jun | Fauresmith | 11-Apr | 26-Apr | 16-May | 25-Apr | 10-May | 01-Jun | 10-May | 23-May | 19-Jun | Ficksburg | 13-Apr | 26-Apr | 17-May | 25-Apr | 07-May | 29-May | 07-May | 19-May | 10-Jun | Frankfort | 11-Apr | 22-Apr | 01-May | 22-Apr | 01-May | 12-May | 30-Apr | 09-May | 23-May | Virginia | 23-Apr | 11-May | 21-May | 03-May | 21-May | 06-Jun | 14-May | 31-May | 21-Jun | Wepener | 09-Apr | 20-Apr | 01-May | 18-Apr | 01-May | 14-May | 28-Apr | 12-May | 27-May | Zastron | 08-Apr | 19-Apr | 01-May | 18-Apr | 30-Apr | 14-May | 28-Apr | 11-May | 27-May |
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