| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.23 | 3.22 | 0.01 |
| Feb | 3.12 | 3.13 | -0.01 |
| Mar | 3.95 | 3.80 | 0.15 |
| Apr | 3.98 | 3.94 | 0.04 |
| May | 3.55 | 3.63 | -0.08 |
| Jun | 4.20 | 4.21 | -0.01 |
| Jul | 3.77 | 3.69 | 0.08 |
| Aug | 3.70 | 3.81 | -0.11 |
| Sep | 4.02 | 3.87 | 0.15 |
| Oct | 4.71 | 4.82 | -0.11 |
| Nov | 3.75 | 3.73 | 0.02 |
| Dec | 4.25 | 4.33 | -0.08 |
46.23 | 46.18 | 0.05 |