| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 4.03 | -0.40 |
| Feb | 3.19 | 3.54 | -0.35 |
| Mar | 4.67 | 5.15 | -0.48 |
| Apr | 4.20 | 4.59 | -0.39 |
| May | 3.49 | 3.49 | 0.00 |
| Jun | 3.66 | 3.84 | -0.18 |
| Jul | 3.11 | 3.18 | -0.07 |
| Aug | 3.64 | 3.87 | -0.23 |
| Sep | 3.90 | 3.94 | -0.04 |
| Oct | 4.54 | 4.71 | -0.17 |
| Nov | 3.81 | 4.14 | -0.33 |
| Dec | 4.54 | 4.99 | -0.45 |
46.38 | 49.47 | -3.09 |