| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.84 | 0.89 | -0.05 |
| Feb | 0.77 | 0.78 | -0.01 |
| Mar | 1.05 | 1.08 | -0.03 |
| Apr | 1.89 | 1.92 | -0.03 |
| May | 2.95 | 2.99 | -0.04 |
| Jun | 4.13 | 4.15 | -0.02 |
| Jul | 3.87 | 3.91 | -0.04 |
| Aug | 3.38 | 3.19 | 0.19 |
| Sep | 3.54 | 3.53 | 0.01 |
| Oct | 2.61 | 2.63 | -0.02 |
| Nov | 1.48 | 1.44 | 0.04 |
| Dec | 1.00 | 1.13 | -0.13 |
27.51 | 27.64 | -0.13 |