| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.45 | 0.23 |
| Feb | 3.15 | 2.94 | 0.21 |
| Mar | 3.69 | 3.67 | 0.02 |
| Apr | 4.25 | 3.84 | 0.41 |
| May | 4.07 | 4.01 | 0.06 |
| Jun | 4.65 | 4.69 | -0.04 |
| Jul | 4.34 | 4.32 | 0.02 |
| Aug | 4.05 | 4.10 | -0.05 |
| Sep | 3.95 | 3.95 | 0.00 |
| Oct | 4.94 | 5.08 | -0.14 |
| Nov | 3.82 | 3.70 | 0.12 |
| Dec | 4.45 | 4.20 | 0.25 |
49.04 | 47.95 | 1.09 |