| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.57 | -0.08 |
| Feb | 3.09 | 3.20 | -0.11 |
| Mar | 3.80 | 3.92 | -0.12 |
| Apr | 4.05 | 4.10 | -0.05 |
| May | 3.93 | 4.07 | -0.14 |
| Jun | 4.68 | 4.82 | -0.14 |
| Jul | 4.47 | 4.19 | 0.28 |
| Aug | 4.43 | 4.30 | 0.13 |
| Sep | 4.45 | 4.65 | -0.20 |
| Oct | 4.85 | 5.12 | -0.27 |
| Nov | 3.71 | 3.87 | -0.16 |
| Dec | 4.35 | 4.48 | -0.13 |
49.30 | 50.29 | -0.99 |