| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.00 | 4.03 | -0.03 |
| Feb | 3.98 | 4.07 | -0.09 |
| Mar | 4.65 | 4.76 | -0.11 |
| Apr | 4.15 | 4.42 | -0.27 |
| May | 4.72 | 4.95 | -0.23 |
| Jun | 4.17 | 4.29 | -0.12 |
| Jul | 2.97 | 2.96 | 0.01 |
| Aug | 2.69 | 2.81 | -0.12 |
| Sep | 3.32 | 3.51 | -0.19 |
| Oct | 4.55 | 4.36 | 0.19 |
| Nov | 3.83 | 3.73 | 0.10 |
| Dec | 4.47 | 4.66 | -0.19 |
47.50 | 48.55 | -1.05 |