| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.52 | 0.03 |
| Feb | 3.30 | 3.32 | -0.02 |
| Mar | 3.50 | 3.67 | -0.17 |
| Apr | 3.21 | 3.37 | -0.16 |
| May | 3.52 | 3.49 | 0.03 |
| Jun | 5.86 | 5.98 | -0.12 |
| Jul | 5.71 | 5.59 | 0.12 |
| Aug | 5.73 | 5.92 | -0.19 |
| Sep | 4.42 | 4.46 | -0.04 |
| Oct | 3.33 | 3.58 | -0.25 |
| Nov | 2.41 | 2.60 | -0.19 |
| Dec | 3.22 | 3.44 | -0.22 |
47.76 | 48.94 | -1.18 |