| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.30 | 4.21 | 0.09 |
| Feb | 4.61 | 4.71 | -0.10 |
| Mar | 4.97 | 5.02 | -0.05 |
| Apr | 4.92 | 5.11 | -0.19 |
| May | 5.14 | 5.48 | -0.34 |
| Jun | 4.41 | 4.21 | 0.20 |
| Jul | 4.37 | 4.61 | -0.24 |
| Aug | 3.45 | 3.40 | 0.05 |
| Sep | 3.75 | 3.91 | -0.16 |
| Oct | 3.56 | 3.68 | -0.12 |
| Nov | 3.73 | 3.83 | -0.10 |
| Dec | 4.94 | 5.00 | -0.06 |
52.15 | 53.17 | -1.02 |