| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.72 | 5.54 | -0.82 |
| Feb | 4.77 | 5.21 | -0.44 |
| Mar | 3.56 | 4.08 | -0.52 |
| Apr | 1.53 | 1.65 | -0.12 |
| May | 0.63 | 0.62 | 0.01 |
| Jun | 0.15 | 0.16 | -0.01 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.08 | 0.10 | -0.02 |
| Oct | 0.90 | 0.89 | 0.01 |
| Nov | 2.14 | 2.13 | 0.01 |
| Dec | 4.44 | 4.97 | -0.53 |
22.95 | 25.38 | -2.43 |