| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.47 | -0.05 |
| Feb | 2.69 | 2.85 | -0.16 |
| Mar | 3.96 | 4.08 | -0.12 |
| Apr | 3.74 | 3.75 | -0.01 |
| May | 4.00 | 4.10 | -0.10 |
| Jun | 4.23 | 4.26 | -0.03 |
| Jul | 5.01 | 4.92 | 0.09 |
| Aug | 4.53 | 4.50 | 0.03 |
| Sep | 4.41 | 4.47 | -0.06 |
| Oct | 4.05 | 4.26 | -0.21 |
| Nov | 3.28 | 3.35 | -0.07 |
| Dec | 4.18 | 4.41 | -0.23 |
47.50 | 48.42 | -0.92 |