| Seasons |
Months |
2010 |
2011 |
| Station I |
Station II |
Station I |
Station II |
| Post monsoon |
January |
7.5 |
7.4 |
7.4 |
7.5 |
| February |
7.7 |
7.5 |
7.8 |
7.6 |
| March |
7.9 |
7.9 |
7.9 |
8.3 |
| Summer |
April |
8.1 |
8.1 |
8.0 |
8.4 |
| May |
8.2 |
8.2 |
8.3 |
8.5 |
| June |
8.3 |
8.5 |
8.4 |
8.6 |
| Pre monsoon |
July |
8.0 |
8.3 |
8.3 |
8.4 |
| August |
8.1 |
8.2 |
8.0 |
8.3 |
| September |
8.2 |
8.0 |
8.1 |
7.9 |
| Monsoon |
October |
7.9 |
7.9 |
7.9 |
7.6 |
| November |
7.6 |
7.4 |
7.5 |
7.5 |
| December |
7.5 |
7.4 |
7.5 |
7.4 |
|
