| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.44 | -0.09 |
| Feb | 2.68 | 2.77 | -0.09 |
| Mar | 4.08 | 4.12 | -0.04 |
| Apr | 3.80 | 3.65 | 0.15 |
| May | 3.64 | 3.76 | -0.12 |
| Jun | 4.54 | 4.52 | 0.02 |
| Jul | 4.69 | 4.57 | 0.12 |
| Aug | 4.47 | 4.27 | 0.20 |
| Sep | 4.72 | 4.85 | -0.13 |
| Oct | 4.36 | 4.45 | -0.09 |
| Nov | 3.35 | 3.30 | 0.05 |
| Dec | 3.93 | 4.02 | -0.09 |
47.61 | 47.72 | -0.11 |