| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.67 | 3.87 | -0.20 |
| Feb | 2.89 | 3.03 | -0.14 |
| Mar | 3.86 | 4.14 | -0.28 |
| Apr | 3.78 | 4.00 | -0.22 |
| May | 3.94 | 3.95 | -0.01 |
| Jun | 4.29 | 4.38 | -0.09 |
| Jul | 4.10 | 4.04 | 0.06 |
| Aug | 4.17 | 4.27 | -0.10 |
| Sep | 4.63 | 4.77 | -0.14 |
| Oct | 3.53 | 3.46 | 0.07 |
| Nov | 3.29 | 3.35 | -0.06 |
| Dec | 3.48 | 3.55 | -0.07 |
45.63 | 46.81 | -1.18 |