| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.02 | 3.87 | 0.15 |
| Feb | 4.46 | 4.42 | 0.04 |
| Mar | 4.53 | 4.82 | -0.29 |
| Apr | 4.64 | 4.90 | -0.26 |
| May | 5.14 | 5.47 | -0.33 |
| Jun | 4.21 | 4.18 | 0.03 |
| Jul | 4.05 | 4.57 | -0.52 |
| Aug | 3.44 | 3.49 | -0.05 |
| Sep | 3.52 | 3.73 | -0.21 |
| Oct | 3.74 | 3.77 | -0.03 |
| Nov | 3.67 | 3.76 | -0.09 |
| Dec | 4.75 | 4.80 | -0.05 |
50.17 | 51.78 | -1.61 |