| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.45 | 1.49 | -0.04 |
| Feb | 1.69 | 1.74 | -0.05 |
| Mar | 2.42 | 2.45 | -0.03 |
| Apr | 3.69 | 3.58 | 0.11 |
| May | 4.64 | 4.82 | -0.18 |
| Jun | 4.86 | 4.73 | 0.13 |
| Jul | 3.99 | 4.23 | -0.24 |
| Aug | 3.88 | 3.85 | 0.03 |
| Sep | 3.44 | 3.38 | 0.06 |
| Oct | 2.79 | 2.75 | 0.04 |
| Nov | 2.27 | 2.22 | 0.05 |
| Dec | 1.87 | 1.97 | -0.10 |
36.99 | 37.21 | -0.22 |