| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.36 | 3.65 | -0.29 |
| Feb | 2.70 | 2.97 | -0.27 |
| Mar | 3.96 | 4.18 | -0.22 |
| Apr | 3.95 | 4.19 | -0.24 |
| May | 3.94 | 4.03 | -0.09 |
| Jun | 4.58 | 4.83 | -0.25 |
| Jul | 4.61 | 4.70 | -0.09 |
| Aug | 4.60 | 4.75 | -0.15 |
| Sep | 4.36 | 4.47 | -0.11 |
| Oct | 4.41 | 4.57 | -0.16 |
| Nov | 3.59 | 3.79 | -0.20 |
| Dec | 4.24 | 4.55 | -0.31 |
48.30 | 50.68 | -2.38 |