| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.94 | -0.20 |
| Feb | 0.78 | 0.90 | -0.12 |
| Mar | 1.58 | 1.68 | -0.10 |
| Apr | 2.91 | 3.05 | -0.14 |
| May | 4.20 | 4.24 | -0.04 |
| Jun | 4.66 | 4.71 | -0.05 |
| Jul | 4.20 | 4.29 | -0.09 |
| Aug | 4.47 | 4.55 | -0.08 |
| Sep | 3.29 | 3.30 | -0.01 |
| Oct | 2.66 | 2.70 | -0.04 |
| Nov | 1.57 | 1.67 | -0.10 |
| Dec | 1.04 | 1.26 | -0.22 |
32.10 | 33.29 | -1.19 |