| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.82 | -0.12 |
| Feb | 0.78 | 0.88 | -0.10 |
| Mar | 1.47 | 1.58 | -0.11 |
| Apr | 2.80 | 2.99 | -0.19 |
| May | 4.20 | 4.32 | -0.12 |
| Jun | 4.43 | 4.48 | -0.05 |
| Jul | 4.27 | 4.29 | -0.02 |
| Aug | 4.09 | 4.18 | -0.09 |
| Sep | 3.10 | 3.20 | -0.10 |
| Oct | 2.85 | 2.75 | 0.10 |
| Nov | 1.57 | 1.68 | -0.11 |
| Dec | 1.04 | 1.19 | -0.15 |
31.30 | 32.36 | -1.06 |