| Extreme Rainfall Event defined as Maximum Five Day Rainfall (5Day_Max) and Maximum One Day Rainfall (1Day_Max) | |||||||||
|
| Dry Zone | Intermediate zone | Wet zone | ||||||
| 5Day_Max | Anuradhapura | Puttatum | Batticoloa | Kurunegala | Badulla | Bandarawela | Katunayake | Katugastota | NuwraEliya |
| average 30 | 175 | 193 | 251 | 221 | 192 | 159 | 142 | 93 | 85 |
| decade 80 | 166 | 213 | 238 | 229 | 237 | 177 | 123 | 95 | 91 |
| decade 90 | 176 | 189 | 225 | 214 | 168 | 144 | 162 | 94 | 94 |
| decade 2000 | 184 | 180 | 286 | 219 | 171 | 160 | 133 | 90 | 70 |
| 2010-2015 | 281 | 159 | 528 | 301 | 257 | 192 | 146 | 127 | 95 |
| 1Day_Max | Anuradhapura | Puttatum | Batticoloa | Kurunegala | Badulla | Bandarawela | Katunayake | Katugastota | NuwraEliya |
| average 30 | 89 | 113 | 126 | 123 | 95 | 76 | 257 | 177 | 188 |
| decade 80 | 73 | 133 | 130 | 123 | 110 | 78 | 243 | 178 | 217 |
| decade 90 | 99 | 114 | 113 | 115 | 94 | 75 | 265 | 179 | 197 |
| decade 2000 | 94 | 95 | 135 | 131 | 81 | 75 | 252 | 173 | 150 |
| 2010-2015 | 135 | 79 | 200 | 172 | 124 | 91 | 263 | 249 | 198 |