| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.17 | 4.32 | -0.15 |
| Feb | 4.26 | 4.27 | -0.01 |
| Mar | 4.74 | 4.77 | -0.03 |
| Apr | 3.65 | 3.74 | -0.09 |
| May | 2.63 | 2.83 | -0.20 |
| Jun | 3.85 | 4.11 | -0.26 |
| Jul | 4.39 | 4.50 | -0.11 |
| Aug | 4.33 | 4.45 | -0.12 |
| Sep | 3.73 | 3.64 | 0.09 |
| Oct | 2.85 | 2.91 | -0.06 |
| Nov | 3.33 | 3.42 | -0.09 |
| Dec | 4.46 | 4.57 | -0.11 |
46.39 | 47.53 | -1.14 |