| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.55 | 0.16 |
| Feb | 3.31 | 3.27 | 0.04 |
| Mar | 4.30 | 4.23 | 0.07 |
| Apr | 4.28 | 4.17 | 0.11 |
| May | 3.62 | 3.57 | 0.05 |
| Jun | 4.25 | 4.13 | 0.12 |
| Jul | 3.74 | 3.70 | 0.04 |
| Aug | 4.11 | 4.02 | 0.09 |
| Sep | 4.14 | 3.87 | 0.27 |
| Oct | 4.94 | 4.88 | 0.06 |
| Nov | 3.98 | 3.70 | 0.28 |
| Dec | 4.46 | 4.51 | -0.05 |
48.84 | 47.60 | 1.24 |