| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.67 | 4.72 | -0.05 |
| Feb | 4.66 | 4.76 | -0.10 |
| Mar | 4.94 | 4.85 | 0.09 |
| Apr | 3.96 | 3.97 | -0.01 |
| May | 3.77 | 3.92 | -0.15 |
| Jun | 4.46 | 4.58 | -0.12 |
| Jul | 4.65 | 4.83 | -0.18 |
| Aug | 4.41 | 4.71 | -0.30 |
| Sep | 4.24 | 4.30 | -0.06 |
| Oct | 3.55 | 3.57 | -0.02 |
| Nov | 4.16 | 4.24 | -0.08 |
| Dec | 4.56 | 4.74 | -0.18 |
52.03 | 53.19 | -1.16 |