| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.89 | -0.15 |
| Feb | 0.78 | 0.89 | -0.11 |
| Mar | 1.57 | 1.63 | -0.06 |
| Apr | 2.89 | 3.02 | -0.13 |
| May | 4.21 | 4.26 | -0.05 |
| Jun | 4.69 | 4.65 | 0.04 |
| Jul | 4.20 | 4.21 | -0.01 |
| Aug | 4.44 | 4.56 | -0.12 |
| Sep | 3.22 | 3.28 | -0.06 |
| Oct | 2.61 | 2.61 | 0.00 |
| Nov | 1.56 | 1.61 | -0.05 |
| Dec | 1.03 | 1.23 | -0.20 |
31.94 | 32.84 | -0.90 |