| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.64 | -0.23 |
| Feb | 2.92 | 3.20 | -0.28 |
| Mar | 4.09 | 4.17 | -0.08 |
| Apr | 4.07 | 4.28 | -0.21 |
| May | 3.52 | 3.57 | -0.05 |
| Jun | 4.28 | 4.15 | 0.13 |
| Jul | 3.91 | 4.04 | -0.13 |
| Aug | 3.96 | 3.94 | 0.02 |
| Sep | 4.09 | 4.22 | -0.13 |
| Oct | 4.67 | 4.87 | -0.20 |
| Nov | 3.77 | 3.90 | -0.13 |
| Dec | 4.26 | 4.52 | -0.26 |
46.95 | 48.50 | -1.55 |