| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.20 | 2.32 | -0.12 |
| Feb | 1.93 | 2.05 | -0.12 |
| Mar | 2.29 | 2.39 | -0.10 |
| Apr | 3.53 | 3.60 | -0.07 |
| May | 4.36 | 4.23 | 0.13 |
| Jun | 4.33 | 4.35 | -0.02 |
| Jul | 4.01 | 4.19 | -0.18 |
| Aug | 4.19 | 4.33 | -0.14 |
| Sep | 3.38 | 3.44 | -0.06 |
| Oct | 3.52 | 3.62 | -0.10 |
| Nov | 2.67 | 2.73 | -0.06 |
| Dec | 2.16 | 2.24 | -0.08 |
38.57 | 39.49 | -0.92 |