| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.77 | -0.08 |
| Feb | 0.81 | 0.86 | -0.05 |
| Mar | 1.43 | 1.52 | -0.09 |
| Apr | 2.78 | 2.84 | -0.06 |
| May | 4.05 | 4.17 | -0.12 |
| Jun | 4.47 | 4.44 | 0.03 |
| Jul | 3.95 | 4.08 | -0.13 |
| Aug | 4.02 | 4.12 | -0.10 |
| Sep | 3.26 | 3.27 | -0.01 |
| Oct | 2.68 | 2.67 | 0.01 |
| Nov | 1.44 | 1.53 | -0.09 |
| Dec | 0.99 | 1.15 | -0.16 |
30.57 | 31.42 | -0.85 |