| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.98 | -0.16 |
| Feb | 0.82 | 0.94 | -0.12 |
| Mar | 1.64 | 1.74 | -0.10 |
| Apr | 2.92 | 3.11 | -0.19 |
| May | 4.20 | 4.28 | -0.08 |
| Jun | 4.82 | 5.00 | -0.18 |
| Jul | 4.20 | 4.22 | -0.02 |
| Aug | 4.58 | 4.48 | 0.10 |
| Sep | 3.36 | 3.35 | 0.01 |
| Oct | 2.75 | 2.97 | -0.22 |
| Nov | 1.64 | 1.73 | -0.09 |
| Dec | 1.17 | 1.33 | -0.16 |
32.92 | 34.13 | -1.21 |