| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.87 | 3.89 | -0.02 |
| Feb | 3.92 | 3.97 | -0.05 |
| Mar | 4.25 | 4.30 | -0.05 |
| Apr | 3.92 | 4.05 | -0.13 |
| May | 4.30 | 4.53 | -0.23 |
| Jun | 4.02 | 4.14 | -0.12 |
| Jul | 2.72 | 2.72 | 0.00 |
| Aug | 2.67 | 2.81 | -0.14 |
| Sep | 3.30 | 3.20 | 0.10 |
| Oct | 4.46 | 4.50 | -0.04 |
| Nov | 3.61 | 3.88 | -0.27 |
| Dec | 4.36 | 4.52 | -0.16 |
45.40 | 46.51 | -1.11 |