| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.63 | -0.15 |
| Feb | 2.91 | 2.85 | 0.06 |
| Mar | 4.06 | 3.90 | 0.16 |
| Apr | 3.42 | 3.60 | -0.18 |
| May | 3.77 | 3.90 | -0.13 |
| Jun | 4.46 | 4.50 | -0.04 |
| Jul | 5.51 | 5.02 | 0.49 |
| Aug | 5.25 | 5.55 | -0.30 |
| Sep | 5.30 | 5.50 | -0.20 |
| Oct | 3.83 | 4.43 | -0.60 |
| Nov | 3.20 | 3.35 | -0.15 |
| Dec | 3.45 | 3.57 | -0.12 |
48.64 | 49.80 | -1.16 |