| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.51 | 0.05 |
| Feb | 2.73 | 2.84 | -0.11 |
| Mar | 3.91 | 3.90 | 0.01 |
| Apr | 3.89 | 3.92 | -0.03 |
| May | 4.06 | 4.15 | -0.09 |
| Jun | 4.56 | 4.69 | -0.13 |
| Jul | 4.79 | 4.71 | 0.08 |
| Aug | 4.69 | 4.75 | -0.06 |
| Sep | 4.46 | 4.60 | -0.14 |
| Oct | 4.39 | 4.61 | -0.22 |
| Nov | 3.40 | 3.43 | -0.03 |
| Dec | 4.23 | 4.40 | -0.17 |
48.67 | 49.51 | -0.84 |