| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.26 | 3.37 | -0.11 |
| Feb | 2.91 | 2.98 | -0.07 |
| Mar | 3.66 | 3.72 | -0.06 |
| Apr | 3.95 | 3.94 | 0.01 |
| May | 3.67 | 3.69 | -0.02 |
| Jun | 4.50 | 4.47 | 0.03 |
| Jul | 4.25 | 4.09 | 0.16 |
| Aug | 4.19 | 4.13 | 0.06 |
| Sep | 4.55 | 4.51 | 0.04 |
| Oct | 4.77 | 4.78 | -0.01 |
| Nov | 3.53 | 3.54 | -0.01 |
| Dec | 4.11 | 4.27 | -0.16 |
47.35 | 47.49 | -0.14 |