|
| Mar | Apr | May | Jun | Jul | Aug | Sep | Total |
| Brookings |
|
|
|
|
|
|
|
|
| 2011 | 2.0 | 6.6 | 15.7 | 10.2 | 12.4 | 3.8 | 0.2 | 51.2 |
| 2012 | 1.4 | 6.8 | 17.5 | 4.1 | 3.5 | 6.3 | 1.8 | 41.4 |
| 2013 | 2.5 | 6.6 | 7.6 | 15.0 | 9.1 | 3.8 | 5.8 | 50.4 |
| 30-year | 2.9 | 5.3 | 7.4 | 10.9 | 8.4 | 7.9 | 5.3 | 48.1 |
| Arlington |
|
|
|
|
|
|
|
|
| 2011 | 8.6 | 8.9 | 5.6 | 10.4 | 6.3 | 3.8 | 9.9 | 53.5 |
| 2012 | 6.1 | 7.9 | 7.4 | 0.8 | 10.9 | 7.4 | 2.8 | 43.3 |
| 2013 | 5.8 | 13.7 | 15.2 | 19.0 | 7.6 | 4.6 | 7.6 | 73.5 |
| 30-year | 4.8 | 8.9 | 9.4 | 11.9 | 10.7 | 9.9 | 8.9 | 64.5 |