| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.64 | -0.12 |
| Feb | 2.91 | 2.86 | 0.05 |
| Mar | 4.05 | 3.92 | 0.13 |
| Apr | 3.43 | 3.61 | -0.18 |
| May | 3.80 | 3.92 | -0.12 |
| Jun | 4.46 | 4.54 | -0.08 |
| Jul | 5.53 | 5.11 | 0.42 |
| Aug | 5.21 | 5.56 | -0.35 |
| Sep | 5.32 | 5.47 | -0.15 |
| Oct | 3.91 | 4.38 | -0.47 |
| Nov | 3.27 | 3.38 | -0.11 |
| Dec | 3.43 | 3.58 | -0.15 |
48.84 | 49.97 | -1.13 |