| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.71 | 4.54 | 0.17 |
| Feb | 4.70 | 4.72 | -0.02 |
| Mar | 5.33 | 5.40 | -0.07 |
| Apr | 5.80 | 5.69 | 0.11 |
| May | 4.96 | 4.92 | 0.04 |
| Jun | 3.99 | 4.01 | -0.02 |
| Jul | 3.90 | 3.85 | 0.05 |
| Aug | 3.68 | 3.49 | 0.19 |
| Sep | 3.28 | 3.49 | -0.21 |
| Oct | 4.50 | 4.54 | -0.04 |
| Nov | 4.22 | 4.21 | 0.01 |
| Dec | 5.69 | 5.63 | 0.06 |
54.76 | 54.49 | 0.27 |