| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.39 | 4.42 | -0.03 |
| Feb | 3.87 | 3.98 | -0.11 |
| Mar | 4.23 | 4.35 | -0.12 |
| Apr | 3.98 | 4.07 | -0.09 |
| May | 4.58 | 4.57 | 0.01 |
| Jun | 4.27 | 4.40 | -0.13 |
| Jul | 3.07 | 2.98 | 0.09 |
| Aug | 3.26 | 3.52 | -0.26 |
| Sep | 3.62 | 3.73 | -0.11 |
| Oct | 4.29 | 4.28 | 0.01 |
| Nov | 4.19 | 4.42 | -0.23 |
| Dec | 4.48 | 4.67 | -0.19 |
48.23 | 49.39 | -1.16 |