| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.49 | 0.04 |
| Feb | 2.62 | 2.61 | 0.01 |
| Mar | 3.57 | 3.33 | 0.24 |
| Apr | 4.13 | 4.11 | 0.02 |
| May | 4.04 | 4.19 | -0.15 |
| Jun | 5.05 | 4.91 | 0.14 |
| Jul | 4.79 | 4.91 | -0.12 |
| Aug | 3.81 | 3.85 | -0.04 |
| Sep | 3.97 | 4.05 | -0.08 |
| Oct | 3.90 | 3.91 | -0.01 |
| Nov | 3.63 | 3.68 | -0.05 |
| Dec | 3.59 | 3.73 | -0.14 |
46.63 | 46.77 | -0.14 |