| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.68 | -0.18 |
| Feb | 2.93 | 2.99 | -0.06 |
| Mar | 4.18 | 4.20 | -0.02 |
| Apr | 3.69 | 3.73 | -0.04 |
| May | 3.71 | 3.84 | -0.13 |
| Jun | 4.34 | 4.29 | 0.05 |
| Jul | 4.64 | 4.61 | 0.03 |
| Aug | 4.49 | 4.41 | 0.08 |
| Sep | 4.80 | 5.13 | -0.33 |
| Oct | 3.50 | 3.48 | 0.02 |
| Nov | 3.31 | 3.35 | -0.04 |
| Dec | 3.56 | 3.58 | -0.02 |
46.65 | 47.29 | -0.64 |