| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.59 | -0.21 |
| Feb | 2.64 | 2.92 | -0.28 |
| Mar | 3.87 | 4.11 | -0.24 |
| Apr | 3.88 | 4.03 | -0.15 |
| May | 3.91 | 3.97 | -0.06 |
| Jun | 4.57 | 4.81 | -0.24 |
| Jul | 4.36 | 4.50 | -0.14 |
| Aug | 4.46 | 4.60 | -0.14 |
| Sep | 4.40 | 4.36 | 0.04 |
| Oct | 4.41 | 4.60 | -0.19 |
| Nov | 3.55 | 3.72 | -0.17 |
| Dec | 4.18 | 4.48 | -0.30 |
47.61 | 49.69 | -2.08 |