| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.55 | -0.21 |
| Feb | 3.44 | 3.49 | -0.05 |
| Mar | 4.53 | 4.52 | 0.01 |
| Apr | 4.88 | 4.89 | -0.01 |
| May | 5.11 | 5.12 | -0.01 |
| Jun | 4.57 | 4.53 | 0.04 |
| Jul | 4.16 | 4.13 | 0.03 |
| Aug | 3.66 | 3.38 | 0.28 |
| Sep | 3.66 | 3.71 | -0.05 |
| Oct | 3.76 | 3.65 | 0.11 |
| Nov | 3.54 | 3.63 | -0.09 |
| Dec | 4.12 | 4.34 | -0.22 |
48.77 | 48.94 | -0.17 |