| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.65 | 0.00 |
| Feb | 0.72 | 0.70 | 0.02 |
| Mar | 1.41 | 1.33 | 0.08 |
| Apr | 2.64 | 2.54 | 0.10 |
| May | 3.52 | 3.67 | -0.15 |
| Jun | 4.19 | 4.64 | -0.45 |
| Jul | 3.58 | 3.62 | -0.04 |
| Aug | 3.43 | 3.38 | 0.05 |
| Sep | 2.94 | 3.11 | -0.17 |
| Oct | 2.21 | 2.19 | 0.02 |
| Nov | 1.10 | 1.02 | 0.08 |
| Dec | 0.85 | 0.80 | 0.05 |
27.24 | 27.65 | -0.41 |