| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.85 | -0.14 |
| Feb | 0.77 | 0.89 | -0.12 |
| Mar | 1.50 | 1.57 | -0.07 |
| Apr | 2.85 | 2.97 | -0.12 |
| May | 4.11 | 4.34 | -0.23 |
| Jun | 4.43 | 4.64 | -0.21 |
| Jul | 4.08 | 4.15 | -0.07 |
| Aug | 4.20 | 4.20 | 0.00 |
| Sep | 3.24 | 3.30 | -0.06 |
| Oct | 2.72 | 2.67 | 0.05 |
| Nov | 1.51 | 1.56 | -0.05 |
| Dec | 1.01 | 1.22 | -0.21 |
31.13 | 32.36 | -1.23 |