| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.68 | -0.07 |
| Feb | 3.88 | 3.95 | -0.07 |
| Mar | 4.90 | 4.82 | 0.08 |
| Apr | 5.24 | 5.30 | -0.06 |
| May | 5.38 | 5.12 | 0.26 |
| Jun | 3.49 | 3.41 | 0.08 |
| Jul | 3.96 | 3.77 | 0.19 |
| Aug | 3.74 | 3.45 | 0.29 |
| Sep | 3.38 | 3.31 | 0.07 |
| Oct | 3.74 | 4.01 | -0.27 |
| Nov | 4.58 | 4.67 | -0.09 |
| Dec | 4.45 | 4.65 | -0.20 |
50.35 | 50.14 | 0.21 |