| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.40 | 2.91 | -0.51 |
| Feb | 1.77 | 1.86 | -0.09 |
| Mar | 1.43 | 1.63 | -0.20 |
| Apr | 0.89 | 0.94 | -0.05 |
| May | 1.16 | 1.08 | 0.08 |
| Jun | 1.20 | 1.09 | 0.11 |
| Jul | 0.64 | 0.68 | -0.04 |
| Aug | 0.53 | 0.42 | 0.11 |
| Sep | 0.71 | 0.52 | 0.19 |
| Oct | 1.42 | 1.57 | -0.15 |
| Nov | 2.35 | 2.97 | -0.62 |
| Dec | 3.24 | 3.69 | -0.45 |
17.74 | 19.36 | -1.62 |