| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.80 | -0.23 |
| Feb | 3.17 | 3.45 | -0.28 |
| Mar | 4.24 | 4.52 | -0.28 |
| Apr | 4.38 | 4.66 | -0.28 |
| May | 3.92 | 4.02 | -0.10 |
| Jun | 4.33 | 4.21 | 0.12 |
| Jul | 3.86 | 3.95 | -0.09 |
| Aug | 3.80 | 4.19 | -0.39 |
| Sep | 4.50 | 4.49 | 0.01 |
| Oct | 4.66 | 4.95 | -0.29 |
| Nov | 3.86 | 3.92 | -0.06 |
| Dec | 4.35 | 4.62 | -0.27 |
48.64 | 50.78 | -2.14 |