| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.20 | -0.05 |
| Feb | 4.03 | 3.95 | 0.08 |
| Mar | 4.44 | 4.47 | -0.03 |
| Apr | 4.01 | 4.08 | -0.07 |
| May | 4.49 | 4.67 | -0.18 |
| Jun | 4.22 | 4.27 | -0.05 |
| Jul | 2.90 | 3.19 | -0.29 |
| Aug | 2.90 | 3.23 | -0.33 |
| Sep | 3.55 | 3.55 | 0.00 |
| Oct | 4.29 | 4.37 | -0.08 |
| Nov | 3.94 | 4.08 | -0.14 |
| Dec | 4.59 | 4.75 | -0.16 |
47.51 | 48.81 | -1.30 |