| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.53 | 0.02 |
| Feb | 3.28 | 3.28 | 0.00 |
| Mar | 4.32 | 4.24 | 0.08 |
| Apr | 4.24 | 4.13 | 0.11 |
| May | 3.70 | 3.55 | 0.15 |
| Jun | 4.19 | 4.14 | 0.05 |
| Jul | 3.76 | 3.66 | 0.10 |
| Aug | 3.96 | 3.94 | 0.02 |
| Sep | 4.00 | 3.84 | 0.16 |
| Oct | 4.84 | 4.81 | 0.03 |
| Nov | 3.94 | 3.71 | 0.23 |
| Dec | 4.44 | 4.52 | -0.08 |
48.22 | 47.35 | 0.87 |