| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.95 | -0.21 |
| Feb | 0.78 | 0.90 | -0.12 |
| Mar | 1.59 | 1.69 | -0.10 |
| Apr | 2.89 | 3.05 | -0.16 |
| May | 4.19 | 4.20 | -0.01 |
| Jun | 4.63 | 4.65 | -0.02 |
| Jul | 4.18 | 4.30 | -0.12 |
| Aug | 4.48 | 4.47 | 0.01 |
| Sep | 3.28 | 3.30 | -0.02 |
| Oct | 2.66 | 2.73 | -0.07 |
| Nov | 1.57 | 1.68 | -0.11 |
| Dec | 1.04 | 1.28 | -0.24 |
32.03 | 33.20 | -1.17 |