| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.70 | -0.15 |
| Feb | 3.00 | 3.13 | -0.13 |
| Mar | 3.94 | 3.97 | -0.03 |
| Apr | 3.83 | 4.16 | -0.33 |
| May | 3.83 | 3.80 | 0.03 |
| Jun | 4.21 | 4.20 | 0.01 |
| Jul | 4.20 | 4.38 | -0.18 |
| Aug | 4.19 | 4.44 | -0.25 |
| Sep | 3.97 | 4.07 | -0.10 |
| Oct | 3.06 | 3.25 | -0.19 |
| Nov | 3.23 | 3.26 | -0.03 |
| Dec | 3.72 | 3.84 | -0.12 |
44.73 | 46.20 | -1.47 |