| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.66 | -0.06 |
| Feb | 3.93 | 3.89 | 0.04 |
| Mar | 4.43 | 4.55 | -0.12 |
| Apr | 4.24 | 4.15 | 0.09 |
| May | 4.68 | 4.93 | -0.25 |
| Jun | 3.90 | 3.99 | -0.09 |
| Jul | 2.94 | 3.05 | -0.11 |
| Aug | 2.79 | 2.71 | 0.08 |
| Sep | 3.73 | 3.52 | 0.21 |
| Oct | 4.47 | 4.61 | -0.14 |
| Nov | 3.80 | 3.75 | 0.05 |
| Dec | 4.54 | 4.62 | -0.08 |
47.05 | 47.43 | -0.38 |