| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.02 | 2.81 | 0.21 |
| Feb | 2.57 | 2.51 | 0.06 |
| Mar | 3.10 | 3.02 | 0.08 |
| Apr | 3.51 | 3.46 | 0.05 |
| May | 3.50 | 3.61 | -0.11 |
| Jun | 4.16 | 3.93 | 0.23 |
| Jul | 3.92 | 3.70 | 0.22 |
| Aug | 3.85 | 3.75 | 0.10 |
| Sep | 3.58 | 3.36 | 0.22 |
| Oct | 4.49 | 4.77 | -0.28 |
| Nov | 3.27 | 3.37 | -0.10 |
| Dec | 3.64 | 3.84 | -0.20 |
42.61 | 42.13 | 0.48 |