| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.48 | 0.50 | -0.02 |
| Feb | 0.65 | 0.68 | -0.03 |
| Mar | 1.36 | 1.28 | 0.08 |
| Apr | 2.96 | 3.08 | -0.12 |
| May | 3.97 | 4.02 | -0.05 |
| Jun | 3.91 | 3.80 | 0.11 |
| Jul | 3.31 | 3.28 | 0.03 |
| Aug | 2.97 | 3.06 | -0.09 |
| Sep | 2.13 | 2.14 | -0.01 |
| Oct | 2.04 | 2.13 | -0.09 |
| Nov | 0.90 | 0.89 | 0.01 |
| Dec | 0.63 | 0.69 | -0.06 |
25.31 | 25.55 | -0.24 |