| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.24 | 3.05 | 0.19 |
| Feb | 3.29 | 3.17 | 0.12 |
| Mar | 4.49 | 4.32 | 0.17 |
| Apr | 5.39 | 5.42 | -0.03 |
| May | 5.48 | 5.45 | 0.03 |
| Jun | 3.92 | 3.82 | 0.10 |
| Jul | 3.99 | 4.19 | -0.20 |
| Aug | 3.77 | 3.71 | 0.06 |
| Sep | 3.66 | 3.65 | 0.01 |
| Oct | 3.52 | 3.52 | 0.00 |
| Nov | 4.75 | 4.51 | 0.24 |
| Dec | 3.50 | 3.58 | -0.08 |
49.00 | 48.39 | 0.61 |