| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.62 | -0.15 |
| Feb | 2.89 | 2.93 | -0.04 |
| Mar | 4.21 | 4.17 | 0.04 |
| Apr | 3.75 | 3.78 | -0.03 |
| May | 3.68 | 3.88 | -0.20 |
| Jun | 4.44 | 4.32 | 0.12 |
| Jul | 4.40 | 4.51 | -0.11 |
| Aug | 4.30 | 4.18 | 0.12 |
| Sep | 4.64 | 4.94 | -0.30 |
| Oct | 3.45 | 3.39 | 0.06 |
| Nov | 3.28 | 3.29 | -0.01 |
| Dec | 3.59 | 3.49 | 0.10 |
46.10 | 46.50 | -0.40 |