| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.95 | -0.23 |
| Feb | 0.77 | 0.90 | -0.13 |
| Mar | 1.55 | 1.69 | -0.14 |
| Apr | 2.89 | 3.08 | -0.19 |
| May | 4.13 | 4.29 | -0.16 |
| Jun | 4.53 | 4.63 | -0.10 |
| Jul | 4.19 | 4.27 | -0.08 |
| Aug | 4.33 | 4.25 | 0.08 |
| Sep | 3.32 | 3.32 | 0.00 |
| Oct | 2.73 | 2.74 | -0.01 |
| Nov | 1.54 | 1.70 | -0.16 |
| Dec | 1.00 | 1.30 | -0.30 |
31.70 | 33.12 | -1.42 |