Avg 
|
Min
|
Max
|
Range
|
|
|---|---|---|---|---|
| January | 9.659 | -1.7 | 24.8 | 26.5 |
| February | 10.726 | -2.9 | 27.7 | 30.6 |
| March | 11.855 | 0.0 | 28.5 | 28.5 |
| April | 13.749 | 1.4 | 30.1 | 28.7 |
| May | 15.112 | 4.7 | 33.5 | 28.8 |
| June | 18.277 | 9.6 | 41.4 | 31.8 |
| July | 20.784 | 11.8 | 40.8 | 29 |
| August | 21.057 | 12.8 | 40.3 | 27.5 |
| September | 19.191 | 8.6 | 36.9 | 28.3 |
| October | 17.374 | 4.7 | 33.0 | 28.3 |
| November | 13.304 | 0.0 | 30.8 | 30.8 |
| December | 11.362 | -1.3 | 24.2 | 25.5 |