| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.88 | -0.17 |
| Feb | 0.77 | 0.89 | -0.12 |
| Mar | 1.50 | 1.60 | -0.10 |
| Apr | 2.85 | 3.00 | -0.15 |
| May | 4.11 | 4.34 | -0.23 |
| Jun | 4.43 | 4.65 | -0.22 |
| Jul | 4.08 | 4.17 | -0.09 |
| Aug | 4.20 | 4.21 | -0.01 |
| Sep | 3.24 | 3.30 | -0.06 |
| Oct | 2.72 | 2.68 | 0.04 |
| Nov | 1.51 | 1.57 | -0.06 |
| Dec | 1.01 | 1.24 | -0.23 |
31.13 | 32.53 | -1.40 |