| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.74 | -0.06 |
| Feb | 0.75 | 0.85 | -0.10 |
| Mar | 1.44 | 1.51 | -0.07 |
| Apr | 2.57 | 2.73 | -0.16 |
| May | 3.83 | 4.08 | -0.25 |
| Jun | 4.60 | 4.61 | -0.01 |
| Jul | 3.73 | 3.76 | -0.03 |
| Aug | 3.97 | 4.27 | -0.30 |
| Sep | 3.13 | 3.13 | 0.00 |
| Oct | 2.33 | 2.44 | -0.11 |
| Nov | 1.42 | 1.47 | -0.05 |
| Dec | 0.94 | 1.10 | -0.16 |
29.39 | 30.69 | -1.30 |