| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.77 | -0.11 |
| Feb | 2.84 | 3.12 | -0.28 |
| Mar | 4.18 | 4.37 | -0.19 |
| Apr | 4.03 | 4.10 | -0.07 |
| May | 4.05 | 4.19 | -0.14 |
| Jun | 4.73 | 4.95 | -0.22 |
| Jul | 4.69 | 4.55 | 0.14 |
| Aug | 4.47 | 4.76 | -0.29 |
| Sep | 4.56 | 4.66 | -0.10 |
| Oct | 4.67 | 4.86 | -0.19 |
| Nov | 3.60 | 3.71 | -0.11 |
| Dec | 4.41 | 4.70 | -0.29 |
49.89 | 51.74 | -1.85 |