| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.46 | -0.02 |
| Feb | 2.71 | 2.97 | -0.26 |
| Mar | 3.78 | 4.05 | -0.27 |
| Apr | 3.83 | 3.86 | -0.03 |
| May | 4.16 | 4.12 | 0.04 |
| Jun | 4.50 | 4.58 | -0.08 |
| Jul | 4.97 | 5.10 | -0.13 |
| Aug | 4.64 | 4.83 | -0.19 |
| Sep | 4.53 | 4.72 | -0.19 |
| Oct | 4.48 | 4.59 | -0.11 |
| Nov | 3.28 | 3.41 | -0.13 |
| Dec | 4.20 | 4.33 | -0.13 |
48.52 | 50.02 | -1.50 |