| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.67 | -0.15 |
| Feb | 3.10 | 3.24 | -0.14 |
| Mar | 3.85 | 4.15 | -0.30 |
| Apr | 4.11 | 4.25 | -0.14 |
| May | 3.94 | 4.13 | -0.19 |
| Jun | 4.74 | 4.93 | -0.19 |
| Jul | 4.51 | 4.31 | 0.20 |
| Aug | 4.49 | 4.46 | 0.03 |
| Sep | 4.56 | 4.83 | -0.27 |
| Oct | 4.89 | 5.15 | -0.26 |
| Nov | 3.74 | 3.97 | -0.23 |
| Dec | 4.42 | 4.63 | -0.21 |
49.87 | 51.72 | -1.85 |