| August 1999 - Summary of Weather | |||
| Highest Temperature | 25 | ºC | 1st |
| Minimum Temperature | 12 | ºC | 11th, 19th, 20th, 22nd |
| Mean Maximum Temp | 20.9 | ºC | |
| Mean Minimum Temp | 14.3 | ºC | |
| Mean Temperature | 17.6 | ºC | |
| Mean Daily Range | 6.5 | deg C | |
| Maximum Range | 9.5 | deg C | |
| Highest Minimum | 17.0 | ºC | 2nd, 6th, 25th |
| Lowest Maximum | 18.0 | ºC | 18th |
| Total Rainfall | 117 | mm | |
| Maximum Daily Rainfall | 26 | mm | 8th |
Temperature and rainfall readings are for the 24 hours ending 6 p.m. BST
| August 1999 | |||
| TEMPERATURE | RAINFALL | ||
| Date | MIN (ºC) | MAX (ºC) | mm |
| 1 | 17 | 25 | |
| 2 | 17 | 24 | trace |
| 3 | 14 | 23.5 | 3 |
| 4 | 16.5 | 21 | 21 |
| 5 | 14.5 | 23.5 | |
| 6 | 17 | 23 | 7 |
| 7 | 15.5 | 23.5 | 4 |
| 8 | 15.5 | 22 | 26 |
| 9 | 15.5 | 21 | 1 |
| 10 | 15 | 21 | |
| 11 | 12 | 19 | 1 |
| 12 | 14 | 23.5 | |
| 13 | 15.5 | 23 | trace |
| 14 | 15 | 18.5 | 3 |
| 15 | 14.5 | 18.5 | 1 |
| 16 | 12.5 | 18.5 | trace |
| 17 | 12.5 | 18.5 | 11 |
| 18 | 13 | 18 | 3 |
| 19 | 12 | 19 | |
| 20 | 12 | 19 | |
| 21 | 12.5 | 19.5 | |
| 22 | 12 | 18.5 | 8 |
| 23 | 14.5 | 22 | |
| 24 | 15.5 | 21 | 16 |
| 25 | 17 | 20.5 | 11 |
| 26 | 14.5 | 19 | 1 |
| 27 | 13.5 | 21 | |
| 28 | 13 | 22.5 | |
| 29 | 14.5 | 21 | |
| 30 | 13.5 | 20.5 | |
| 31 | 13 | 18.5 | |