| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.68 | -0.20 |
| Feb | 2.82 | 3.02 | -0.20 |
| Mar | 4.13 | 4.17 | -0.04 |
| Apr | 3.96 | 4.15 | -0.19 |
| May | 3.99 | 4.08 | -0.09 |
| Jun | 4.66 | 4.79 | -0.13 |
| Jul | 4.59 | 4.72 | -0.13 |
| Aug | 4.58 | 4.72 | -0.14 |
| Sep | 4.38 | 4.51 | -0.13 |
| Oct | 4.45 | 4.50 | -0.05 |
| Nov | 3.67 | 3.76 | -0.09 |
| Dec | 4.33 | 4.52 | -0.19 |
49.04 | 50.62 | -1.58 |