| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.75 | -0.33 |
| Feb | 2.87 | 3.17 | -0.30 |
| Mar | 4.09 | 4.28 | -0.19 |
| Apr | 4.11 | 4.27 | -0.16 |
| May | 3.80 | 3.93 | -0.13 |
| Jun | 4.44 | 4.51 | -0.07 |
| Jul | 4.12 | 4.00 | 0.12 |
| Aug | 4.11 | 4.22 | -0.11 |
| Sep | 4.47 | 4.58 | -0.11 |
| Oct | 4.44 | 4.49 | -0.05 |
| Nov | 3.55 | 3.76 | -0.21 |
| Dec | 4.07 | 4.44 | -0.37 |
47.49 | 49.40 | -1.91 |