| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.83 | -0.29 |
| Feb | 3.12 | 3.50 | -0.38 |
| Mar | 4.01 | 4.50 | -0.49 |
| Apr | 4.11 | 4.63 | -0.52 |
| May | 3.55 | 3.58 | -0.03 |
| Jun | 4.28 | 4.28 | 0.00 |
| Jul | 3.89 | 3.83 | 0.06 |
| Aug | 3.74 | 3.92 | -0.18 |
| Sep | 4.15 | 4.24 | -0.09 |
| Oct | 4.66 | 5.00 | -0.34 |
| Nov | 3.88 | 3.98 | -0.10 |
| Dec | 4.15 | 4.68 | -0.53 |
47.08 | 49.97 | -2.89 |