| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.53 | -0.04 |
| Feb | 0.56 | 0.60 | -0.04 |
| Mar | 0.87 | 0.93 | -0.06 |
| Apr | 1.95 | 2.18 | -0.23 |
| May | 3.06 | 3.11 | -0.05 |
| Jun | 3.64 | 3.77 | -0.13 |
| Jul | 3.19 | 3.31 | -0.12 |
| Aug | 2.31 | 2.47 | -0.16 |
| Sep | 2.28 | 2.28 | 0.00 |
| Oct | 2.11 | 2.00 | 0.11 |
| Nov | 0.68 | 0.72 | -0.04 |
| Dec | 0.60 | 0.59 | 0.01 |
21.74 | 22.49 | -0.75 |