| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.72 | 0.02 |
| Feb | 1.10 | 0.95 | 0.15 |
| Mar | 1.92 | 1.97 | -0.05 |
| Apr | 2.30 | 2.33 | -0.03 |
| May | 3.93 | 4.27 | -0.34 |
| Jun | 4.03 | 4.02 | 0.01 |
| Jul | 3.52 | 3.63 | -0.11 |
| Aug | 3.55 | 3.35 | 0.20 |
| Sep | 2.13 | 2.15 | -0.02 |
| Oct | 2.30 | 2.29 | 0.01 |
| Nov | 1.21 | 1.13 | 0.08 |
| Dec | 0.99 | 1.09 | -0.10 |
27.72 | 27.90 | -0.18 |