| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.72 | 0.03 |
| Feb | 1.03 | 1.07 | -0.04 |
| Mar | 1.84 | 1.80 | 0.04 |
| Apr | 2.55 | 2.57 | -0.02 |
| May | 4.97 | 4.90 | 0.07 |
| Jun | 4.02 | 3.90 | 0.12 |
| Jul | 3.99 | 3.87 | 0.12 |
| Aug | 3.85 | 3.82 | 0.03 |
| Sep | 2.64 | 2.61 | 0.03 |
| Oct | 2.14 | 2.16 | -0.02 |
| Nov | 1.22 | 1.21 | 0.01 |
| Dec | 1.12 | 1.05 | 0.07 |
30.12 | 29.68 | 0.44 |