| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.84 | -0.45 |
| Feb | 2.94 | 3.39 | -0.45 |
| Mar | 4.13 | 4.76 | -0.63 |
| Apr | 4.10 | 4.37 | -0.27 |
| May | 3.48 | 3.62 | -0.14 |
| Jun | 3.78 | 3.75 | 0.03 |
| Jul | 3.10 | 3.20 | -0.10 |
| Aug | 3.70 | 3.91 | -0.21 |
| Sep | 4.03 | 4.17 | -0.14 |
| Oct | 4.44 | 4.59 | -0.15 |
| Nov | 3.63 | 3.84 | -0.21 |
| Dec | 4.24 | 4.71 | -0.47 |
44.96 | 48.15 | -3.19 |