| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 4.14 | -0.24 |
| Feb | 3.47 | 3.58 | -0.11 |
| Mar | 4.77 | 5.03 | -0.26 |
| Apr | 4.35 | 4.70 | -0.35 |
| May | 3.44 | 3.41 | 0.03 |
| Jun | 4.01 | 4.10 | -0.09 |
| Jul | 3.26 | 3.18 | 0.08 |
| Aug | 3.81 | 3.76 | 0.05 |
| Sep | 4.07 | 4.08 | -0.01 |
| Oct | 4.64 | 4.68 | -0.04 |
| Nov | 4.22 | 4.21 | 0.01 |
| Dec | 4.72 | 4.95 | -0.23 |
48.66 | 49.82 | -1.16 |