| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 4.15 | -0.25 |
| Feb | 3.47 | 3.58 | -0.11 |
| Mar | 4.77 | 5.08 | -0.31 |
| Apr | 4.35 | 4.69 | -0.34 |
| May | 3.44 | 3.41 | 0.03 |
| Jun | 4.01 | 4.08 | -0.07 |
| Jul | 3.26 | 3.17 | 0.09 |
| Aug | 3.81 | 3.75 | 0.06 |
| Sep | 4.07 | 4.08 | -0.01 |
| Oct | 4.64 | 4.67 | -0.03 |
| Nov | 4.22 | 4.22 | 0.00 |
| Dec | 4.72 | 4.95 | -0.23 |
48.66 | 49.83 | -1.17 |