| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 4.28 | -0.24 |
| Feb | 3.36 | 3.63 | -0.27 |
| Mar | 4.19 | 4.36 | -0.17 |
| Apr | 4.23 | 4.31 | -0.08 |
| May | 4.08 | 4.24 | -0.16 |
| Jun | 4.38 | 4.68 | -0.30 |
| Jul | 4.30 | 4.44 | -0.14 |
| Aug | 4.68 | 4.78 | -0.10 |
| Sep | 4.17 | 4.59 | -0.42 |
| Oct | 3.59 | 3.76 | -0.17 |
| Nov | 3.57 | 3.69 | -0.12 |
| Dec | 4.21 | 4.64 | -0.43 |
48.80 | 51.40 | -2.60 |