| September 1999 - Summary of Weather | |||
| Highest Temperature | 24.5 | ºC | 5th |
| Minimum Temperature | 9 | ºC | 14th |
| Mean Maximum Temp | 18.8 | ºC | |
| Mean Minimum Temp | 12.9 | ºC | |
| Mean Temperature | 15.9 | ºC | |
| Mean Daily Range | 5.9 | deg C | |
| Maximum Range | 9.0 | deg C | |
| Highest Minimum | 17.0 | ºC | 7th |
| Lowest Maximum | 15.5 | ºC | 26th |
| Total Rainfall | 72 | mm | (Excluding 11th to 16th, when rainfall not recorded) |
| Maximum Daily Rainfall | 28 | mm | 24th |
Temperature and rainfall readings are for the 24 hours ending 6 p.m.
| September 1999 | |||
| TEMPERATURE | RAINFALL | ||
| Date | MIN (ºC) | MAX (ºC) | mm |
| 1 | 13 | 21 | |
| 2 | 15 | 23.5 | |
| 3 | 14 | 22.5 | |
| 4 | 15.5 | 23 | |
| 5 | 15.5 | 24.5 | |
| 6 | 16 | 21 | |
| 7 | 17 | 20.5 | 1 |
| 8 | 14 | 20.5 | 1 |
| 9 | 12 | 19.5 | trace |
| 10 | 12.5 | 21 | |
| 11 | 14.5 | 21 | N/A |
| 12 | 10 | 17.5 | N/A |
| 13 | 10.5 | 16.5 | N/A |
| 14 | 9 | 17 | |
| 15 | 10 | 17 | N/A |
| 16 | 12.5 | 18 | N/A |
| 17 | 11 | 17 | 5 |
| 18 | 13 | 17 | 3 |
| 19 | 12 | 18 | 3 |
| 20 | 12.5 | 17.5 | trace |
| 21 | 11.5 | 18.5 | |
| 22 | 14.5 | 19 | 5 |
| 23 | 14 | 18 | 4 |
| 24 | 14 | 17 | 28 |
| 25 | 12.5 | 18 | 1 |
| 26 | 11.5 | 15.5 | 8 |
| 27 | 12.5 | 16 | 4 |
| 28 | 12 | 16.5 | 5 |
| 29 | 13.5 | 17.5 | 4 |
| 30 | 12.5 | 15.5 | trace |