| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.17 | 1.11 | 0.06 |
| Feb | 1.26 | 1.21 | 0.05 |
| Mar | 2.11 | 1.98 | 0.13 |
| Apr | 3.76 | 3.74 | 0.02 |
| May | 4.63 | 4.68 | -0.05 |
| Jun | 5.86 | 5.81 | 0.05 |
| Jul | 4.62 | 4.89 | -0.27 |
| Aug | 4.10 | 4.11 | -0.01 |
| Sep | 3.69 | 3.63 | 0.06 |
| Oct | 2.91 | 2.85 | 0.06 |
| Nov | 2.08 | 2.02 | 0.06 |
| Dec | 1.63 | 1.53 | 0.10 |
37.82 | 37.56 | 0.26 |