| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.90 | 3.06 | -0.16 |
| Feb | 2.47 | 2.59 | -0.12 |
| Mar | 3.73 | 3.78 | -0.05 |
| Apr | 3.49 | 3.45 | 0.04 |
| May | 3.84 | 3.95 | -0.11 |
| Jun | 3.98 | 3.86 | 0.12 |
| Jul | 4.41 | 4.25 | 0.16 |
| Aug | 3.80 | 3.87 | -0.07 |
| Sep | 4.63 | 4.78 | -0.15 |
| Oct | 3.82 | 3.78 | 0.04 |
| Nov | 3.00 | 3.04 | -0.04 |
| Dec | 3.32 | 3.49 | -0.17 |
43.39 | 43.90 | -0.51 |