| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.80 | -0.16 |
| Feb | 3.11 | 3.29 | -0.18 |
| Mar | 3.97 | 3.95 | 0.02 |
| Apr | 3.39 | 3.49 | -0.10 |
| May | 3.75 | 3.94 | -0.19 |
| Jun | 4.56 | 4.48 | 0.08 |
| Jul | 5.57 | 5.58 | -0.01 |
| Aug | 5.50 | 5.35 | 0.15 |
| Sep | 4.96 | 4.79 | 0.17 |
| Oct | 3.79 | 3.81 | -0.02 |
| Nov | 3.15 | 3.62 | -0.47 |
| Dec | 3.49 | 3.85 | -0.36 |
48.88 | 49.95 | -1.07 |