| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.68 | -0.33 |
| Feb | 2.90 | 3.19 | -0.29 |
| Mar | 3.99 | 4.11 | -0.12 |
| Apr | 4.02 | 4.05 | -0.03 |
| May | 3.83 | 3.92 | -0.09 |
| Jun | 4.36 | 4.55 | -0.19 |
| Jul | 4.51 | 4.72 | -0.21 |
| Aug | 4.33 | 4.67 | -0.34 |
| Sep | 4.46 | 4.60 | -0.14 |
| Oct | 4.62 | 4.68 | -0.06 |
| Nov | 3.82 | 3.97 | -0.15 |
| Dec | 4.10 | 4.60 | -0.50 |
48.29 | 50.74 | -2.45 |