| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.79 | -0.19 |
| Feb | 2.93 | 3.12 | -0.19 |
| Mar | 4.27 | 4.46 | -0.19 |
| Apr | 3.67 | 3.83 | -0.16 |
| May | 3.97 | 3.92 | 0.05 |
| Jun | 4.14 | 4.28 | -0.14 |
| Jul | 4.51 | 4.60 | -0.09 |
| Aug | 4.48 | 4.53 | -0.05 |
| Sep | 3.94 | 4.08 | -0.14 |
| Oct | 4.08 | 4.25 | -0.17 |
| Nov | 3.37 | 3.47 | -0.10 |
| Dec | 4.34 | 4.59 | -0.25 |
47.30 | 48.92 | -1.62 |