| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.76 | 4.12 | -0.36 |
| Feb | 3.35 | 3.65 | -0.30 |
| Mar | 4.84 | 5.38 | -0.54 |
| Apr | 4.30 | 4.73 | -0.43 |
| May | 3.45 | 3.62 | -0.17 |
| Jun | 3.63 | 3.91 | -0.28 |
| Jul | 3.12 | 3.20 | -0.08 |
| Aug | 3.69 | 3.98 | -0.29 |
| Sep | 3.86 | 3.99 | -0.13 |
| Oct | 4.53 | 4.81 | -0.28 |
| Nov | 3.95 | 4.28 | -0.33 |
| Dec | 4.64 | 5.13 | -0.49 |
47.12 | 50.80 | -3.68 |