| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.65 | -0.13 |
| Feb | 2.96 | 3.12 | -0.16 |
| Mar | 4.19 | 4.20 | -0.01 |
| Apr | 4.11 | 4.25 | -0.14 |
| May | 3.86 | 3.84 | 0.02 |
| Jun | 4.38 | 4.38 | 0.00 |
| Jul | 4.00 | 3.91 | 0.09 |
| Aug | 3.95 | 4.15 | -0.20 |
| Sep | 4.49 | 4.46 | 0.03 |
| Oct | 4.41 | 4.40 | 0.01 |
| Nov | 3.59 | 3.62 | -0.03 |
| Dec | 4.23 | 4.35 | -0.12 |
47.69 | 48.33 | -0.64 |